Thanks to Scopely for sponsoring this video - Download Star Trek Fleet Command on iOS & Android and battle in the Star Trek universe here: pixly.go2cloud.org/SH2zV
Cool I love it and ya a death trap, Ah kind of like the other stuff, that is ok, so as long as you do not get hurt no harm in some fun, we love you. Have a great day.
G'day, I have a spare Rotax 377 in my Aeroplane Trailer..., it's only crashed the once ; in 1995, when Canada John spun in on his turn onto Finals. Backtrack me to my "Warbles In The Wilderness" Playlist, therein to find and watch, "REQUIEM FOR A REDHEAD...; Crash Analysis Of John William Robson & His 35 Hp Mk-3 Skycraft Scout." I thought about using his Engine to rebuild my VJ-24w, which I pranged in 1992 ; but it started life designed to be a footlaunched Hang Glider, and it shook like a shower of Shit with the 22 Hp JPX Pul-425 on it - and I fear the 35 Hp Rotax might shake the very Rivets out of their holes, scattering parts from on high. Such is life, Have a good one... Stay safe. ;-p Ciao !
He could achieve a lot more stability just by moving two sleds up front and keeping a single in the back without the directional rail. There's an easy 8 to 12 inches to lower the center of gravity. I'm guessing he initially welded on some the length to the fork just to make sure he had enough prop clearance. He did hack it all together in a few hours after all. And a cage is the first priority. I was cringing when I saw him start the motor with his pup around. It's all good that he knows his dog and has a well behaved boy, but I'm also glad a neighbors dog didn't get loose and go chasing him down the street or something🤣
You would typically ride a snowboard just on its edge. With the whole surface area planted flat on the snow, you're either getting too much 'grip' in powder, or it gets very unstable at speed, since it constantly switches from one edge to another. You may want to mount the rear snowboards at an angle to try it out. Not sure how much do you want to over-engineer it, but it probably would make a lot of sense to build some kind of a suspension that would pivot the boards while cornering. That would require you to lean on it to turn, but may be a lot of fun too! Very nice project thou! :)
З такою підвіскою сани, стануть занадто складні і важкі, та і немає в цьому потреби, просто потрібно лижі зміненої конструкції, з підрізами які б перешкоджали боковому ковзанню.
@@nickp1987 Everything is overhyped and overpolished these days. Compare Peter to Flite Test as they used to work together. Peter hasn't changed much, but FT went through a "modern" TH-cam phase, and lost a lot of credibility. Though it feels like Josh is trying to take FT back towards its roots now.
Wax the skis. Just a thought...Also, adding suspension to at least the rear skis would greatly help in cornering. Looks like total fun. I'd ride that for a dollar.
Suspension in the rear is the last thing you want, that's coming from a guy who has years of three wheeler experience. Cornering on a three-wheel/three ski machine is all body position.
@@otm646 anyone from the country knows the good ol hang off her like youre trying to fall off. Only way to not fall off haha. Never had a big red myself but ive known plenty of people who have.
I’m about the exact opposite of an expert, but I think this thing would definitely benefit from a much lower seating position. More of a sit in it than on it situation like a drift trike.
I would like to see a more "complete version" of this concept. Like putting fins on the back after fully enclosing the prop in a cage. In theory the handling should become much smoother. Also a vibration damper between the prop and the engine output would probably help heaps! Other then that id say great video!
Very nice garage fabricating, I wish more young people would be involved in this sort of thing and actually lean stuff. Beyond the mechanical skills there is plenty of crude engineering. Well done.
Get ye some chains. I'd love to see a moped with tire chains. That'd be hilarious. For the record, it might not be a good idea lol. You'd seriously suffer from lacking surface area and weight, and unless you've swapped in a seriously overfed motor, you might get some trouble plowing through some snows. Also, getting nailed by the wash from other vehicles or a snowplow, or even just getting dunked by snow drifting off the roofs of other vehicles could ruin you. I imagine that a proper snowped would require some serious modding and still get you into trouble.
@@davesendit1348 yeah, but mopeds kinda have a few additional issues. Small wheels means you have to use small chains, otherwise they're just going to keep bumping you up into some potentially disastrous air-time. And if you run small chains then you might not get enough traction on certain kinds of snow. Lighter weight means both less traction on ice and after a certain speed you'll start floating too much on snow. In addition, a small engine means you'll be suffering while trying to plow through fresh snow. When traversing through snow, you want one of two things. Either you're light enough with a large enough surface area to stay on top of the snow, or you're heavy enough with a strong enough engine to plough through and compact the snow beneath you to give you more solid footing. If you can't manage those then you're just stuck with well maintained roads...which isn't at all safe because you'll be sharing those roads with vehicles who'll ruin you just by being near you.
compared to some of your old vids, your speaking got a lot better in terms of not talking so fast. now i can fully understand what you are saying, nice!
5:22 is it just me, or is seeing the headlights of something you created light up the ground out in the wilderness almost like seeing it fly for the first time all over again? A Kerbal Space Program mission's climax in real life.
Got some ideas for improving stability: make it a bit longer so the weight is more central and less over the rear "axle". Also it might help if you angle the back skiis inwards a little so they ride on the inner edge when going straight but let the craft tip slightly outwards whilst still being controlable when cornering. Lastly the horizontal bar connecting the rear sleds seams like it would probably destroy your feet when you touch the ground. Oh, and a break could benefit security.
the problem is there's no guiding blades on the flat snowboards, without those you wont have much steering authority at all. the way snowboarders steer is by leaning the snowboard to the side to get the edge of the board to cut into the snow much like a snowmobile ski or an ice skate on ice
@@carcollecter98 i was thinking this too, then youd have an easily replaceable carbide that could grip that an yea stancing it out and lowering centre of gravity would help out a ton
V-twin power is better suited to this sort of application because the torsional vibration applied to the prop is less severe. The torsional vibration of that one-cylinder, HF piece of cr*p engine is likely what caused the prop bolts to shear. You need a full cage around that prop. Even better is a duct, which will improve prop efficiency, as well as minimize the chance of a prop strike if you roll your contraption on its side.
Beautiful build. I built a small airboat back in the 80's and made a conduit frame around the prop and used fencing wire twisted around (not welded so vibrations won't break) the frame to protect limbs from meeting with the prop in case of an accident.
Sweet snow trike Peter, I always like these kinds of builds! A few thoughts on design: 1. Some dihedral on the outriggers should help the outboard ski dig its edge in on a turn and track better; 2. Some mechanical expo in the steering might help the squirrely handling at high speed; 3. Lower the CG, but you already knew that; 4. Better cage on the prop to make it less death-trappy. I don't want to see you get hurt my dude!
@@SvrM_ Sure. The suspension provides some form of leaning which acts somehow like lowering the centre of gravity. The most effective way to lower the CG, however, is to physically lower the load. Maybe a combination of suspension and a lower ride height would be the best, and also make for a more comfortable ride
I gave you the idea a couple of years ago and sent a link to some cheap gravity sleds already on the market. Reversing the order of skis by placing two in front and one behind will increase stability. At the same time widen the front stance by about a foot. Fixing the front skis in place and using a shorter rear ski to steer (in the manner of a taildragger airplane) might be worth looking into.
Using a single rear ski to stir with two fixed in the front wouldn't work. The 2 front skis moving in conjunction with a rudder at the fan would be better for stirring.
If you lengthen the frame (more distance between the motor and driver) it will keep the motor from tipping the whole thing, and probably have better handling. You aren't getting enough weight toward the front.
With that harbor freight engine, in regards to it's power, I would reccomend some kind of gearbox/chain setup to increase the RPM of the propeller. Those engines have decent torque that can't be utilized by a propeller at 1:1 ratio. Great video as always!
Love the crazy fun and would love to see the snow bike make another appearance. A few things, it looked like you put the ribs on with blunt leading edges, get out the grinder… and for a bit more stability increase the stance of the rear skis. But you already know all that…
Interesting! I've buiIt several small R/C power sleds with both glow & electric power over the years. I would suggest mounting the nose ski with 3/5ths of the ski ahead of the hinge point; and a bungee+cable to keep the nose of the skis up and limit their travel, especially in deeper, powder snow. Also another 12" or so of width between the main skis would be more stable.
I was really hoping for a pedaled powered machine 😂, this was still very cool too tho! Nice work guys! Pedal powered machines are notoriously hard to power, but what if you made a glider out of one. You'd only have to pedal to extend your glide range theoretically?
I have built 5 airboats from 3.5 to 92 hp , 4 hover craft and One Ice plane using 65 hp Lycoming Engine Oh yea one 3 wheel Bicycle with a 5 hp and 24 " pusher prop lets say fast ... This idea is Neat Thanks Guys for this Video Looks like creative minds think alike
Replace the snowboards asap with a front ski and two back tracks, and it will be perfect. I can see the machine already wanting to catch an edge on one of the snowboards and tip hard. Suggest it for safety reasons and secondly speed reasons. You wan't to reach to max speed that's fine but as soon as any of that speed is transferred sideways on the board with them flat faced and straight ahead youll go down hard.
I'd suggest lowering your centre of mass somehow and only having the metal guide on the front board so the back will slide instead of getting caught and jumping.
Well even though I just cannot stand any commercials (Trek Fleet in this case) at all, I did watch most of your nice clip and have to say that I'm impressed with your "Snow Rocket" project - take care!
Wider base, much lower center of gravity, possibly spring suspension and get rid of the pedals. Instead, have a platform with a seat, a foot at most above the ground. A "stomp pedal" you can use to apply brakes (a hinge at the aft end of the 2 rear skies to push a brake into the snow). Your air-sled had the right idea, being so low. If you'd cut down the front ski to be more narrow it would enhance your steering. And last, but MOST important, you need a full shroud around that propeller, but for your safety and to protect the prop should you tip over. GREAT proof of concept though! Looked like you were having a blast!
I think some points worth considering for this project: 1: You don't have any shock absorption or give on your skis. Putting the front or rear skis on pivots may help in the handling. Likewise leaf springs or coil springs like on a dirt bike make make for a more stable ride, as the dampening effect will take some of the sway and wobble out at higher speeds. 2: You're pretty high off the ground in your current configuration. Not only will that make it feel more dangerous, but it will increase you risk of being ditched over the handle bars if you hit a rock or other obstacle. If you look at historical ski cars driven by props, the prop is usually pretty high relative to the rest of the vehicle body. A canoe shape or toboggan shape seated position may helpful not only in lowering your center of gravity, but also in distributing the centroid of your mass, making it easy to handle at high speeds. While you did use a sled in your earlier version, I think the poor handling of that mode is pretty evident. 3: You prop cage should probably extend a little farther back, like most prop boats. 4: Skis: You used snowboards for your skis and I think that probably wasn't the worth idea, as they spread your weight over a larger area, which should in theory reduce your resistance. But Snowboards don't have the best handling when traveling straight as you have observed. I'm curious if the narrower skis would keep your ski car running more true. Likewise, there may be some value in looking at the curve profile of the actual first surface, as that will affect how straight running the skis are. 5: Steering: using a snowboard for the front ski makes a lot of sense here as snowboards handle better off axis movement than conventional skis. I wonder if your high speed handling may be helped by some kind of limits to prevent too wide a turn at high speeds, which could cause damage or injury. Otherwise some kind of dampening with hydraulics or shocks may improve high speed steerings. Overall a fun project; definitely curious how fast that paramotor will be able to go, on a safer frame.
Just a couple suggestions, add a shock to the front. And lower the center of gravity. You're riding way too high. Lowering,that will increase your stability.
Two snowboards in the front and a saucer sled in the rear would drastically improve stability and definitely a lower center of gravity. Cheap fix just my opinion. By the way thanks for the content keep it coming!
id personally really enjoy a video series with like 10+ vids of a bigger project. maybe revisiting the homemade ultralight project with style? love the vids
not bad. if you build a duct for the prop, you will get better performance. widen the footprint and you will get better stability at higher speed. I built one similar a few years ago with a top speed of 65 mph. here is a suggestion for a future build use four of those engines and build a quad copter bike. you will have to set up special controls to synchronize the engines for Beter directional control.
Recommendation: Take the snowboards you are using and get the bottoms waxed by a local ski shop. It will help tremendously with starting from a standstill and potentially top speed.
That was fun to watch! I wish I had a chance to ride it. :D It's good you're careful not to push it too hard; don't lose that. I hope nothing ever catches you out.
Living here in SW Florida, all I can think of is the configuration of an airboat. After seeing your ski bike in action I'm thinking it might benefit from some steering rudders behind the prop, similar to an airboat design. Maybe a wider "ski-base" to stop it from squirreling, other than that it looks like a blast to drive! Just watch your hands and feet, well, and arms, legs and neck, yeah, a full safety cage for that prop might help too!
Get ridd of the peddles, and put some foot boards on it. That way you can ride it like a motorcycle, and have a better chance to lean it over on turns. (lean into the turn)
Here's one of your problems. Take a look at the front skegs on a snowmobile. They are v--shaped and have a metal runner going down the long axis. Keep your flat snowboards (for weight) but add a runner down the middle of each to provide directional stability and steering. Be very careful the first few outings because the runners will now bite and turn much sharper. Also, I really think you need a lower center of gravity, that's why it's so tippy. You could lower your framework 12" and still have the propeller shield a few inches off of the snow. Make front fork mounted pegs for your feet instead of having you legs hang down. If you lower the unit (and I think you should) you're going to need a shield to prevent snow from accumulating on your crotch.
Great contraption! I love the paint job. I might stretch the wheelbase(?) and triagulate the rear struts with a little more angle, but alas we just don't get that much snow here in NC....
damn the bike looks something like an old military snow bike because the type of green and the star very cool would love to see more of this type of stuff :D
Maybe a smaller ski on the front on a little bit of a angle with shocks, that might work. You guys should DEFINITELY make a guard around that blade, like a house fan lol. Looks like a ton of fun tho
If you combine the form of the first (a low sled) with the outriggers/tripod of the first (two running gear in the front, one rear for better stability) you'll also get the lower centre of gravity so you're less likely to tip over.
Also, instead of having a snowboard at the front you should use 1 or 2 skis. For the stability issue, you need some type of suspension. The reason why its so jerky is that all the knocks and vibrations are being transferred directly to the frame of the bike. Since your steering is (directly with no suspension unit) connected to the frame all those vibrations will affect the steering.
To fix the stability issues at speed, maybe try reversing the trike setup. Two sleds in front, one in rear. That’ll at least eliminate centripetal force sending you in an unsupported area of the frame. Downside is: then you have to figure out how to keep the engine and prop from unbalancing the rear.
that instability in the corners is exactly why three-wheelers didn't survive much beyond the 70's-80's. It would be cool to see another revision of this with 4 skis, a wider stance and some coilover shocks. I'd bet it could go a lot faster and remain stable.
Lower your seating position. Lower center of gravity= increased stability. Also 30 mph will feel super fast. 3 skis is unstable in any order, go with four. In a corner youll have a chance to recover from a tip. With a low cog, though youll be golden. 4 skiis.
Lil hint for the bike side of your project: you can pull off one of the cranks an put it back in place parallel to the other side crank. Than you could just weld them in place to have solid footstays. 👌🏼
2 sleds front, 1 back, recumbent for low center of mass and clear path to propeller. Low down friction and mass - high up thrust causes safer, grippier nose down turning moment. If you could combine (safely ratio'd) steering the front with your feet, and the back with a wheel/handlebar, this could roll the driver, help keep both front sleds flat down and ease off side slip on the back, and be a lot more intuitive to balance.
Amazing concept, one easy change to make the ride more comortable would be to remove one of the cranks and screw it back on in the same orientation as the other one. At least your feet are in the same position then.
Try a little toe in on the rear skis. Also some caster and trail in the front ski. This should make it turn better. Another idea would be to take in on the lake this summer. You can try to skip it across the water.
Instead of the 'skegs', what you should've done is 'tip' the rear snowboards, inner-edge-down, by about 2 or 3 degrees, while also bringing the rear of each 'inboard' by 2 degrees. This would put the inner-edges of those down, and would release the steering input for positive tracking while sliding forward.
I think that the instability comes form the boards being rigidly mounted flat from left to right. If they were set at a slight angle, like a dihedral wing, it would help the rear track straight and be more stable in turns. The front already tilts the board when you turn so the side catches which is why it can steer. More advanced version would have linkages that tilt the whole vehicle to lean it proportionally to the handle bar motion. That way you lean into the turn along with the snow boards so you can slide or turn tighter without flipping. Awesome trike still :-D
You need a longer wheel base to go fast. Think of a power boat. You need to distance between the front and back to keep it in line. Also your center if gravity is extremely high. So it's basically like riding a barstool down the road a 30mph. Very unstable. Move the seat down and bend the front forks down bring your center down. Cool project
Next version need to be longer with a lower rider height. Maybe some sort of braking system that drops lowers a block or small plow between the two rear ski's that is operated by the other brake lever or the bike peddles similar to coaster bikes for kids
Thanks to Scopely for sponsoring this video - Download Star Trek Fleet Command on iOS & Android and battle in the Star Trek universe here: pixly.go2cloud.org/SH2zV
HSD
can you shout out my TH-cam channel it is 2Maxx with roblox picture
hi
Cool I love it and ya a death trap, Ah kind of like the other stuff, that is ok, so as long as you do not get hurt no harm in some fun, we love you. Have a great day.
A legend 👏 8hr time window and he crushes it
At the very least, it might make a great foot amputation device.
Negativity
Arm amputation
@someone123 armputation
or a dog decapitator....
@@naiknaik8812 hamburger with ambient artificial cubes incidencr
"but I do have this spare paramotor engine." things I wish I could say.
Same lmao
G'day,
I have a spare Rotax 377 in my Aeroplane Trailer..., it's only crashed the once ; in 1995, when Canada John spun in on his turn onto Finals.
Backtrack me to my "Warbles In The Wilderness" Playlist, therein to find and watch,
"REQUIEM FOR A REDHEAD...; Crash Analysis Of John William Robson & His 35 Hp Mk-3 Skycraft Scout."
I thought about using his Engine to rebuild my VJ-24w, which I pranged in 1992 ; but it started life designed to be a footlaunched Hang Glider, and it shook like a shower of Shit with the 22 Hp JPX Pul-425 on it - and I fear the 35 Hp Rotax might shake the very Rivets out of their holes, scattering parts from on high.
Such is life,
Have a good one...
Stay safe.
;-p
Ciao !
Sparamotor
I rarely have a spare screw of the right dimensions, or a spare piece of wood.
This man is doing all the cool shit I wish I could do
3:12 Ah yes, the classic Harbor Fright 212. Known for breaking bones in homemade go-karts across America, now weaponized to remove limbs.
Hazard Fright more like it. Report those bots above me.
@@ac.creations fear not brother/sister! The report marines are here!
how do you manage to break bone on something that isnt even 4hp?
Man these freaking bots suck.
@@Francois_Dupont by going 20 mph and flipping over
I think a lower profile design (lower center of gravity) would make it a lot safer as well as a full cage around the prop
Yea, plus quad (4) points of contact would be more stable and also increase the ground clearance of the cross members. I’d want that fan caged too.
LENGTHEN IT ALSO. Its too short for stability
Not having a cage for the prop causes me concern for their safety as well
He could achieve a lot more stability just by moving two sleds up front and keeping a single in the back without the directional rail. There's an easy 8 to 12 inches to lower the center of gravity. I'm guessing he initially welded on some the length to the fork just to make sure he had enough prop clearance. He did hack it all together in a few hours after all.
And a cage is the first priority. I was cringing when I saw him start the motor with his pup around. It's all good that he knows his dog and has a well behaved boy, but I'm also glad a neighbors dog didn't get loose and go chasing him down the street or something🤣
You would typically ride a snowboard just on its edge. With the whole surface area planted flat on the snow, you're either getting too much 'grip' in powder, or it gets very unstable at speed, since it constantly switches from one edge to another. You may want to mount the rear snowboards at an angle to try it out. Not sure how much do you want to over-engineer it, but it probably would make a lot of sense to build some kind of a suspension that would pivot the boards while cornering. That would require you to lean on it to turn, but may be a lot of fun too!
Very nice project thou! :)
З такою підвіскою сани, стануть занадто складні і важкі, та і немає в цьому потреби, просто потрібно лижі зміненої конструкції, з підрізами які б перешкоджали боковому ковзанню.
i love how peter's videos still have that 2016 youtube feel. great job mate
2016 feels like yesterday to me, so I don't even know what the difference is.
@@delphicdescant I was going to say the same thing. What constitutes a 2016 TH-cam feel exactly?
@@nickp1987 Everything is overhyped and overpolished these days. Compare Peter to Flite Test as they used to work together. Peter hasn't changed much, but FT went through a "modern" TH-cam phase, and lost a lot of credibility. Though it feels like Josh is trying to take FT back towards its roots now.
Honestly a pretty great fukin year.
feels like [year I started browsing TH-cam]
Wax the skis. Just a thought...Also, adding suspension to at least the rear skis would greatly help in cornering. Looks like total fun. I'd ride that for a dollar.
Suspension in the rear is the last thing you want, that's coming from a guy who has years of three wheeler experience. Cornering on a three-wheel/three ski machine is all body position.
@@otm646 anyone from the country knows the good ol hang off her like youre trying to fall off. Only way to not fall off haha. Never had a big red myself but ive known plenty of people who have.
The dog be like: what the human doing.....
I was thinking two front skis like a snow mobile.....
Widen the stance by a foot or 2 and add a few degrees camber so the inside edges of the boards cut in a little bit
I’m about the exact opposite of an expert, but I think this thing would definitely benefit from a much lower seating position. More of a sit in it than on it situation like a drift trike.
You are absolutely correct. I was thinking a recumbent bicycle would have been a better starting vehicle.
Sounds Good, Conway!
Yep for stability he needs to lower center of mass
@@Ms123kill
Also a wider track.
Ape Hangers!
I would like to see a more "complete version" of this concept. Like putting fins on the back after fully enclosing the prop in a cage. In theory the handling should become much smoother. Also a vibration damper between the prop and the engine output would probably help heaps! Other then that id say great video!
Very nice garage fabricating, I wish more young people would be involved in this sort of thing and actually lean stuff. Beyond the mechanical skills there is plenty of crude engineering. Well done.
I've considered replacing my moped front wheel with a snowmobile ski for a snowped, but I'm not sure my knobby rear tire would be enough
Get ye some chains.
I'd love to see a moped with tire chains. That'd be hilarious.
For the record, it might not be a good idea lol. You'd seriously suffer from lacking surface area and weight, and unless you've swapped in a seriously overfed motor, you might get some trouble plowing through some snows. Also, getting nailed by the wash from other vehicles or a snowplow, or even just getting dunked by snow drifting off the roofs of other vehicles could ruin you.
I imagine that a proper snowped would require some serious modding and still get you into trouble.
Chains would handle it no problem. Chains are genuinely unbelievable in the snow
you could also stud the tires with some wood screws
Seen some guys at Moped Army that have totally succeeded doing that
@@davesendit1348 yeah, but mopeds kinda have a few additional issues. Small wheels means you have to use small chains, otherwise they're just going to keep bumping you up into some potentially disastrous air-time. And if you run small chains then you might not get enough traction on certain kinds of snow.
Lighter weight means both less traction on ice and after a certain speed you'll start floating too much on snow. In addition, a small engine means you'll be suffering while trying to plow through fresh snow.
When traversing through snow, you want one of two things. Either you're light enough with a large enough surface area to stay on top of the snow, or you're heavy enough with a strong enough engine to plough through and compact the snow beneath you to give you more solid footing.
If you can't manage those then you're just stuck with well maintained roads...which isn't at all safe because you'll be sharing those roads with vehicles who'll ruin you just by being near you.
Great project! Next time have a seated position lower to the ground. This has great promise!
Yea I noticed that its dangerous high center
Lower, wider, longer, 4 skis, or 3 but with 2 in front.
compared to some of your old vids, your speaking got a lot better in terms of not talking so fast. now i can fully understand what you are saying, nice!
5:22
is it just me, or is seeing the headlights of something you created light up the ground out in the wilderness almost like seeing it fly for the first time all over again?
A Kerbal Space Program mission's climax in real life.
I love that feeling! :)
(Kerbal emoji when?)
Got some ideas for improving stability: make it a bit longer so the weight is more central and less over the rear "axle". Also it might help if you angle the back skiis inwards a little so they ride on the inner edge when going straight but let the craft tip slightly outwards whilst still being controlable when cornering. Lastly the horizontal bar connecting the rear sleds seams like it would probably destroy your feet when you touch the ground. Oh, and a break could benefit security.
what he said + 1 more board on the front
You want the center of mass even farther away from the two boards keeping it from tipping anytime they try to turn?
the problem is there's no guiding blades on the flat snowboards, without those you wont have much steering authority at all. the way snowboarders steer is by leaning the snowboard to the side to get the edge of the board to cut into the snow much like a snowmobile ski or an ice skate on ice
A break is often beneficial for safety, but I think you mean brake.
@@carcollecter98 i was thinking this too, then youd have an easily replaceable carbide that could grip that an yea stancing it out and lowering centre of gravity would help out a ton
Man, you slapped that thing together in 24 hours! Impressive!
(Of course, modifications take longer, after that.)
Cool!
Now just hook up the Paramotor wing and you can be a bond villain minion
V-twin power is better suited to this sort of application because the torsional vibration applied to the prop is less severe. The torsional vibration of that one-cylinder, HF piece of cr*p engine is likely what caused the prop bolts to shear.
You need a full cage around that prop. Even better is a duct, which will improve prop efficiency, as well as minimize the chance of a prop strike if you roll your contraption on its side.
I would put 2 boards in the front and 1 on the rear, might be more stable.
Thanks for sharing and as always keep building👍
Beautiful build. I built a small airboat back in the 80's and made a conduit frame around the prop and used fencing wire twisted around (not welded so vibrations won't break) the frame to protect limbs from meeting with the prop in case of an accident.
Sweet snow trike Peter, I always like these kinds of builds! A few thoughts on design:
1. Some dihedral on the outriggers should help the outboard ski dig its edge in on a turn and track better;
2. Some mechanical expo in the steering might help the squirrely handling at high speed;
3. Lower the CG, but you already knew that;
4. Better cage on the prop to make it less death-trappy. I don't want to see you get hurt my dude!
3. Lower the CG. Most important. A bicycle leans in turns. The bicycle frame used for this build sets the rider too high
@@FiDonkor if the rear skis had suspension it would be way better transfering weight would actually be a thing
@@SvrM_ Sure. The suspension provides some form of leaning which acts somehow like lowering the centre of gravity. The most effective way to lower the CG, however, is to physically lower the load. Maybe a combination of suspension and a lower ride height would be the best, and also make for a more comfortable ride
@@FiDonkor i agree with you also the suspension would help widen it making it more stable aswell
Better cage = more drag = less speed = less awesome, nerd.
Is that the predator engine I left there a year ago? 😂 awesome video bro
Bro I wish I could say something like this!
"Now I'm in a better workshop still making trash" same Buddy. Same
You just figured out what every kid in the 80's who had a three wheeler. They Are Tippy! Awesome build.
Amazing concept. It would sure be fun to ride on it!
This is the distraction I needed. Thanks for creating silly stuff like this.
Dude I'm soooo ready so procrastinate
I gave you the idea a couple of years ago and sent a link to some cheap gravity sleds already on the market. Reversing the order of skis by placing two in front and one behind will increase stability. At the same time widen the front stance by about a foot. Fixing the front skis in place and using a shorter rear ski to steer (in the manner of a taildragger airplane) might be worth looking into.
Using a single rear ski to stir with two fixed in the front wouldn't work. The 2 front skis moving in conjunction with a rudder at the fan would be better for stirring.
If you lengthen the frame (more distance between the motor and driver) it will keep the motor from tipping the whole thing, and probably have better handling. You aren't getting enough weight toward the front.
With that harbor freight engine, in regards to it's power, I would reccomend some kind of gearbox/chain setup to increase the RPM of the propeller. Those engines have decent torque that can't be utilized by a propeller at 1:1 ratio.
Great video as always!
Love the crazy fun and would love to see the snow bike make another appearance. A few things, it looked like you put the ribs on with blunt leading edges, get out the grinder… and for a bit more stability increase the stance of the rear skis. But you already know all that…
Interesting! I've buiIt several small R/C power sleds with both glow & electric power over the years. I would suggest mounting the nose ski with 3/5ths of the ski ahead of the hinge point; and a bungee+cable to keep the nose of the skis up and limit their travel, especially in deeper, powder snow. Also another 12" or so of width between the main skis would be more stable.
Looks fun. I'm in for it!
I was wondering if anyone has ever tried to make anything like this. I should have known it would be you!! Thank you for doing what you do!!
It's amazing how much less janky a simple coat of paint makes it look!
This is sick bro keep it up
I was really hoping for a pedaled powered machine 😂, this was still very cool too tho! Nice work guys!
Pedal powered machines are notoriously hard to power, but what if you made a glider out of one. You'd only have to pedal to extend your glide range theoretically?
Not trash. This is a great beginning to a new more viable project. Keep it up. Nice work.
I have built 5 airboats from 3.5 to 92 hp , 4 hover craft and One Ice plane using 65 hp Lycoming Engine Oh yea one 3 wheel Bicycle with a 5 hp and 24 " pusher prop lets say fast ... This idea is Neat Thanks Guys for this Video Looks like creative minds think alike
One of the easier changes for improving stability at high power, is to angle the engine slightly (5 to 10 degrees), to give a little down force.
would the tilt be towards or away from the rider?
@@calebvaccaro Extra down force requires the imaginary extension of the propeller shaft to intersect the ground somewhere ahead of the rider.
Fun project. When it's cold enough to snow perhaps a fan isn't the most comfy propulsion unit.
The skis need to tilt to steer. The edges define the turn radius. That’s how snow boards work.
Now you gotta build an Aircraft/Airplane with snowboard style Legs, Either that or you should attach Wings to the bike
Really cool dude. I'd recommend using a snowmobile ski on the front for better turning and overall better stability
I've been a huge prop ever since the flight test days. Keep being awesome.
Replace the snowboards asap with a front ski and two back tracks, and it will be perfect. I can see the machine already wanting to catch an edge on one of the snowboards and tip hard. Suggest it for safety reasons and secondly speed reasons. You wan't to reach to max speed that's fine but as soon as any of that speed is transferred sideways on the board with them flat faced and straight ahead youll go down hard.
I'd suggest lowering your centre of mass somehow and only having the metal guide on the front board so the back will slide instead of getting caught and jumping.
Well even though I just cannot stand any commercials (Trek Fleet in this case) at
all, I did watch most of your nice clip and have to say that I'm impressed with your
"Snow Rocket" project - take care!
Widen the base, add some shocks to the back skis
Wider base, much lower center of gravity, possibly spring suspension and get rid of the pedals. Instead, have a platform with a seat, a foot at most above the ground. A "stomp pedal" you can use to apply brakes (a hinge at the aft end of the 2 rear skies to push a brake into the snow). Your air-sled had the right idea, being so low.
If you'd cut down the front ski to be more narrow it would enhance your steering.
And last, but MOST important, you need a full shroud around that propeller, but for your safety and to protect the prop should you tip over.
GREAT proof of concept though! Looked like you were having a blast!
YES LOWER YOUR CG AND YOU WILL LOVE IT GREAT VID
So awesome. I'd love to see what could be achieved with a more stable ski trike and paragliding motor. And yes, the terror is half the fun.
You made a boat, many airplanes, but where is the airplane that lands on water like the Icon A5? You should build one of those. Love your videos!
I think some points worth considering for this project:
1: You don't have any shock absorption or give on your skis. Putting the front or rear skis on pivots may help in the handling. Likewise leaf springs or coil springs like on a dirt bike make make for a more stable ride, as the dampening effect will take some of the sway and wobble out at higher speeds.
2: You're pretty high off the ground in your current configuration. Not only will that make it feel more dangerous, but it will increase you risk of being ditched over the handle bars if you hit a rock or other obstacle. If you look at historical ski cars driven by props, the prop is usually pretty high relative to the rest of the vehicle body. A canoe shape or toboggan shape seated position may helpful not only in lowering your center of gravity, but also in distributing the centroid of your mass, making it easy to handle at high speeds. While you did use a sled in your earlier version, I think the poor handling of that mode is pretty evident.
3: You prop cage should probably extend a little farther back, like most prop boats.
4: Skis: You used snowboards for your skis and I think that probably wasn't the worth idea, as they spread your weight over a larger area, which should in theory reduce your resistance. But Snowboards don't have the best handling when traveling straight as you have observed. I'm curious if the narrower skis would keep your ski car running more true. Likewise, there may be some value in looking at the curve profile of the actual first surface, as that will affect how straight running the skis are.
5: Steering: using a snowboard for the front ski makes a lot of sense here as snowboards handle better off axis movement than conventional skis. I wonder if your high speed handling may be helped by some kind of limits to prevent too wide a turn at high speeds, which could cause damage or injury. Otherwise some kind of dampening with hydraulics or shocks may improve high speed steerings.
Overall a fun project; definitely curious how fast that paramotor will be able to go, on a safer frame.
dog: "I'm embarrassed to even be associated with these guys!"
Don't be so hard on yourself, that was a really cool build. 👍Thank you, from the UK.
Just a couple suggestions, add a shock to the front. And lower the center of gravity. You're riding way too high. Lowering,that will increase your stability.
Two snowboards in the front and a saucer sled in the rear would drastically improve stability and definitely a lower center of gravity. Cheap fix just my opinion. By the way thanks for the content keep it coming!
id personally really enjoy a video series with like 10+ vids of a bigger project. maybe revisiting the homemade ultralight project with style? love the vids
not bad. if you build a duct for the prop, you will get better performance. widen the footprint and you will get better stability at higher speed. I built one similar a few years ago with a top speed of 65 mph. here is a suggestion for a future build use four of those engines and build a quad copter bike. you will have to set up special controls to synchronize the engines for Beter directional control.
Recommendation: Take the snowboards you are using and get the bottoms waxed by a local ski shop. It will help tremendously with starting from a standstill and potentially top speed.
That was fun to watch! I wish I had a chance to ride it. :D It's good you're careful not to push it too hard; don't lose that. I hope nothing ever catches you out.
Glad to see your brother doing well thank you for your service
Living here in SW Florida, all I can think of is the configuration of an airboat. After seeing your ski bike in action I'm thinking it might benefit from some steering rudders behind the prop, similar to an airboat design. Maybe a wider "ski-base" to stop it from squirreling, other than that it looks like a blast to drive! Just watch your hands and feet, well, and arms, legs and neck, yeah, a full safety cage for that prop might help too!
Yea it snows, but then it's 45 50 the next day. Bi polar state. Carnations, cardinals, and crappy weather. Awesome work and content as usual.
Get ridd of the peddles, and put some foot boards on it. That way you can ride it like a motorcycle, and have a better chance to lean it over on turns. (lean into the turn)
You might even try leaning the back skis down on the inside and up on the outside, like you would for making a turn on skis when skiing..
Agree that lower COG would improve stability, but so would spreading those rear skids out.
Here's one of your problems. Take a look at the front skegs on a snowmobile. They are v--shaped and have a metal runner going down the long axis. Keep your flat snowboards (for weight) but add a runner down the middle of each to provide directional stability and steering. Be very careful the first few outings because the runners will now bite and turn much sharper. Also, I really think you need a lower center of gravity, that's why it's so tippy. You could lower your framework 12" and still have the propeller shield a few inches off of the snow. Make front fork mounted pegs for your feet instead of having you legs hang down. If you lower the unit (and I think you should) you're going to need a shield to prevent snow from accumulating on your crotch.
I'll bet your neighbors just love you.😁very creative !
It looks like a vehicle for a villain from a Miyazaki film! I love it!
Great contraption! I love the paint job. I might stretch the wheelbase(?) and triagulate the rear struts with a little more angle, but alas we just don't get that much snow here in NC....
Pretty cool…next winter a go-cart with wide sled base and prop cage… then haul-ass!
You should probably be using Snowmobile skags (wear bars) on the ski's for better steering and stability. but don't try to turn too fast or sharp.
damn the bike looks something like an old military snow bike because the type of green and the star
very cool would love to see more of this type of stuff :D
Maybe a smaller ski on the front on a little bit of a angle with shocks, that might work. You guys should DEFINITELY make a guard around that blade, like a house fan lol.
Looks like a ton of fun tho
If you combine the form of the first (a low sled) with the outriggers/tripod of the first (two running gear in the front, one rear for better stability) you'll also get the lower centre of gravity so you're less likely to tip over.
Also, instead of having a snowboard at the front you should use 1 or 2 skis. For the stability issue, you need some type of suspension. The reason why its so jerky is that all the knocks and vibrations are being transferred directly to the frame of the bike. Since your steering is (directly with no suspension unit) connected to the frame all those vibrations will affect the steering.
To fix the stability issues at speed, maybe try reversing the trike setup. Two sleds in front, one in rear. That’ll at least eliminate centripetal force sending you in an unsupported area of the frame. Downside is: then you have to figure out how to keep the engine and prop from unbalancing the rear.
I would like to see more of this please
that instability in the corners is exactly why three-wheelers didn't survive much beyond the 70's-80's. It would be cool to see another revision of this with 4 skis, a wider stance and some coilover shocks. I'd bet it could go a lot faster and remain stable.
Lower your seating position.
Lower center of gravity= increased stability.
Also 30 mph will feel super fast.
3 skis is unstable in any order, go with four. In a corner youll have a chance to recover from a tip. With a low cog, though youll be golden.
4 skiis.
Iam 70 years old Black man and Peter you give me hope for my People B1.
If you put a front suspension fork on there, it’ll be a ton better.
Lil hint for the bike side of your project: you can pull off one of the cranks an put it back in place parallel to the other side crank. Than you could just weld them in place to have solid footstays. 👌🏼
Maybe also make it electric so time 😋
You are so cool Peter and I wish I could do the things you do! Thanks for being my model
2 sleds front, 1 back, recumbent for low center of mass and clear path to propeller. Low down friction and mass - high up thrust causes safer, grippier nose down turning moment. If you could combine (safely ratio'd) steering the front with your feet, and the back with a wheel/handlebar, this could roll the driver, help keep both front sleds flat down and ease off side slip on the back, and be a lot more intuitive to balance.
Congratulations you have been selected among the winner of our giveaway Contact the above number for claiming your parcel🎁....
Amazing concept, one easy change to make the ride more comortable would be to remove one of the cranks and screw it back on in the same orientation as the other one. At least your feet are in the same position then.
You should turn a treadmill into a snowmobile!
Try a little toe in on the rear skis. Also some caster and trail in the front ski. This should make it turn better. Another idea would be to take in on the lake this summer. You can try to skip it across the water.
Add skegs to the bottom of the skis and make the brackets for the rear skis so they can pivot and you’d be golden!
To you and your brother's credit, this thing looks cool as hell!
"Now I am in a work shop making trash" Story of my existence also!
Instead of the 'skegs', what you should've done is 'tip' the rear snowboards, inner-edge-down, by about 2 or 3 degrees, while also bringing the rear of each 'inboard' by 2 degrees. This would put the inner-edges of those down, and would release the steering input for positive tracking while sliding forward.
Freaking dangerous. Got me nervous for the dog. That propeller is open for fatalities. Brains aren’t any good on the floor.
I think that the instability comes form the boards being rigidly mounted flat from left to right. If they were set at a slight angle, like a dihedral wing, it would help the rear track straight and be more stable in turns. The front already tilts the board when you turn so the side catches which is why it can steer. More advanced version would have linkages that tilt the whole vehicle to lean it proportionally to the handle bar motion. That way you lean into the turn along with the snow boards so you can slide or turn tighter without flipping.
Awesome trike still :-D
You need a longer wheel base to go fast. Think of a power boat. You need to distance between the front and back to keep it in line. Also your center if gravity is extremely high. So it's basically like riding a barstool down the road a 30mph. Very unstable. Move the seat down and bend the front forks down bring your center down. Cool project
Make the sponsons extendable. Narrow mode for transport, then extend them for stability while riding.
"slight" oversteer...need a snowmobile ski set! Awesome build.
I love the old school military vibe. It looks like something that could exist in Fallout.
Next version need to be longer with a lower rider height. Maybe some sort of braking system that drops lowers a block or small plow between the two rear ski's that is operated by the other brake lever or the bike peddles similar to coaster bikes for kids