You guys were right! The Ultralight Airbike Is DIALED in!
ฝัง
- เผยแพร่เมื่อ 2 ต.ค. 2024
- I had too much pitch in the E-propellor, so when I was doing static run-ups, it was stalling the prop's center section, allowing for more RPMs. took some pitch out and I'm getting the 6700 rpms
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I also show some clips of a powered parachute I went and flew.
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Hey y'all! Beautiful baby... you're so blessed. (Both of'em).
Great that the issue finally resolved. Know that'll make you happy.
I enjoy your videos so just about wherever you take us works for me.
Thanks for sharing.🙂👍🤔🇺🇸 ⚘
GREAT JONAS and family! good to see all is well! Dont prang your prop!
I hate those ppc's , had a friend of mine die in one... He flew through a micro downburst and was never able to recover because the chute collapsed..
good video, nice seeing the whole family.... yeah, keep the videos coming especially anything flying!
*You made my favorite videos during the time you first met Silva and were flying around dating. They where the BEST!*
You might find that a spinner on that prop, my alter the characteristics of the cooling of the cylinder heads might be worth a try if you have one ?
Hi Jonas.
Been watching for a few years and have decided to give my "two cents worth", Strap in.
Tail wheel aircraft have there directional tires forward of the center of mass. (lifting the tail of high wing aircraft move's the CofG closer to the tires reducing the swing )
Picture from overhead the Bike moving forward, It starts to turn left, this moves the CofG to the right loading the right tire and unloading the left .the CofG resisting the change in direction pushes to the right swinging the tail further into the turn , Ground loop.
The tire with the greater load (grip) has more control than the lightly loaded tire.
If the right tire is pointed to the left (toe in ) when it is loaded up this will INCREASE the speed of the swing.
If the right tire is pointed to the right (toe out ) when it is loaded up this will DECREASE the speed of the swing.
Toe out is a must for tail wheel aircraft. Easy test is lower the tire pressure way down ( Half flat ) and taxi at the speed you have trouble. The low pressure removes the tires ability to steer the aircraft into a swing. It will still ground loop but the speed of any reaction will be much slower.
Nose wheel aircraft NEED toe in
The fix is lots of toe out .
My Zodiac 601 had 3 Deg of toe in , It now has 5 Deg out , PIG to placid.
Lets not start on the camber change.
If you want to take advice from someone you don't know, has no known experience on the subject , from a country that drives on the wrong side of the road, And you don't mind Facebook fact's (General internet bulls*^t)
Start at 3 deg each side (6 total) toe out.
Try low tire pressure first.
Steve🙃
You are 100% correct. Great explanation!! I should have set mine for toe out. But I went zero. :/thinking it would be good enough. I’ll try the lower tire pressure.
Thanks for chiming in!!
Of course we want more.watching real people do fun stuff is so inspiring for me and my kids thank you.
Nothing like laughing over a crazy PPC ride with some buddies having some Good & Plenty's lol. Always keeping it real Jonas that is what i love about you and your family and channel truly great authentic people. Every time i watch i miss it there in Idaho so many good people and beautiful country
Explore your glide, then when, not if, it quits, you'll know what to expect. I was more impressed with that landing gear. Nice job on that.Glad you got that engine figured out.
The glide ratio is about 1:1 😂 just point it where you want to land.
Take time to be the good husband and daddy.
I been screaming in comments " too lean"
:) finally
Jonas, you know I love ya bro. Please leave those damn powered chutes alone and stick to things that are meant to fly and not fall from the sky. So happy for you getting the Air Bike worked out!!! You’re family is sooooooo cute btw!!! Be safe!🤠
Always seems to me for a power out at least the chute is already deployed, no sketchy landing strip needed!
@@CalFunInSun Very true
a PT-6 would solve all the issues ..call Patey
That's the cutest cub I have ever seen. Enjoy every single minute, they grow up way too fast.
Toe the main gear wheels out a little. It will tame the squirrelieness on landing. My KF 3 had the same problem. 1/8 shims in each wheel made it a completely different experience on landing. I no longer sweat the pavement.
Ya man! Glad you got it figured. I hate troubleshooting when it seems like you can't solve the issue.
Thanks for putting a little more of Ava and Sylvia in this one.... although Ava appeared to be trying to tell you that she was tired of just standing in front of some camera when "WE could be PLAYING in the living room, Dad" ! .... And why on earth you're talking to that dumb camera when me and you and Mom COULD BE.....P L A Y ING is beyond me???! ! !
time for the pumpkins
No I don't want you to fly that PPC again. LoL but I was totally there with you the moment you got the perfect climbout....it turned into a little bushplane!
Dude! You got a link to where I can get those tiers? They would do awesome on my trike!
*We told you "TOO MUCH PITCH".* Live and learn.
Climbing cylinder head temp difference could be from the steep angle of attack. As someone else said a proper spinner will help reduce the size of the disturbed air behind the prop.
V Twin rear cylinders on motorcycles always run hotter. Isn't it just due to the location and direction of travel?
@@barrysimmons5489 yeah but it's normally pretty simple to use baffles to even then out to a pretty good degree 👍
I'd definitely love to see a video from your ppg! Used to fly paragliders in the early 90's, bit never a powered 1.
Probably smart bit to be SUPER confident in that engine
So your ultralight was trying to be a helicopter, and beat the air into submission. Lol.
NICE ONE Jonas. Got to fo a baby plane now 😅😊
I would have found stock jetting numbers an started from there. Then new spark plugs an run the old Caster oil mix 40 to 1 or so on the can.
Run wide open for a minute,turn off when open. CK plug. Adjust for color. They make gas ratiometers.
Here is something else to think about. Back in the 90s, we had a VERY active UL forum on Yahoo. I remember the graybeards in the hobby recommending keeping the RPMs lower than what you are running. Obviously it depends on the weight of the plane and pilot, and how draggy the plane is, but I remember it was said to be best to keep the rpms no higher than 63-6400 on take off, and to pull it back further as soon as safe to do so. If you could pull the rpms down to 6000 or a bit less in level flight, so much the better. The reason is that the big end of the rod is the failure point. The harder you run the engine, the sooner it will wear out. The worst case often described as an example was the guys flying powered parachutes. They would run the engines so hard they could wear them out in 200 hours or less. I would think this Airbike is fairly light, and probably is fairly high drag. Only you know how it feels flying it. I can't help but wonder if the prop is the best choice for the aircraft, a lot of the ULs ran a large diameter wood prop. Other Airbike owners would be the best to opine on that.
I think 5800 is a good maximum rpm. That’s what I use on my 503.
That is a snowmobile engine with needle bearings on both ends of the rods, not plain bearings. Also the crankshaft is supported with ball bearings. My extensive experience with those engines, cylinder and piston wear is more of a concern. If you use a high quality two cycle oil like any of Amsoil's two cycle (or two stroke if you must) oils along with good fuel and proper jetting it shouldn't be a problem.
@@oneninerniner3427 Yes it is a snowmobile engine, but it is being used in a very different application. A propeller is more like running a pump, constant load, relatively constant rpm. In a high output, high rpm application, you can destroy the crankshaft while the pistons and bores look like new. Rotax recommends de-carboning the pistons on a regular basis because of carbon build up under the rings, snowmobiles do not seem to have this problem much if ever. At any rate, I don't think anyone would advocate running 6700 rpm in this application.
Love to see you doing what your passion drives you to do. Never give up on that. Life is to short. You have a beautiful family enjoy that as well. Can’t wait to see your next adventure. Fly high, fly straight!
Yea, PPC’s & turbulence do not go well together at all!! Had the nose of mine doing figure 8’s once, after a morning cross country & the thermals started earlier than expected at 9:30 & I had to try to land in those conditions?! 🤢🤢🤢 😬😬😬😬😬😬
Stuck the landing & nothing broke, at least not that time! Yikes!!!!
Single carb intake manifold sucks an changes the air flow. Get 2 carbs an more power .
Jonas, ref your carb and mixture probs. Two strokes are affected by the oil mix. Contrary to popular belief more oil is not good! More oil weakens the mixture because it doesn’t burn like gasoline. Learned this years ago when Yamaha racing two stroke motorcycles would seize at the drop of a hat because riders would “add a drop more oil to be on the safe side”
Stu
the PBO engine whisperer
this air bike is the answer to a childhood dream ..I always wanted to make a model airplane big enough to ride on ...and this is literally it .. ya gotta love it ..!
Glad to see it finally running for you
Off topic question for you. How much performance would you lose if you muffled that engine to run as quietly as a car???
Hope your not loosing a crankshaft bearing , be careful, I worked on a lot of snowmobile engines and you might be putting a band aid on a problem!!
I may be wrong due to your engine being a 2 stroke, but i never worry about EGT. Only CHT. Unless you have a turbo you are worrying about melting, high EGT temps don't really mean anything.
Mike Busch has some excellent videos on EGT's and why they're not a good or reliable measurement for engine operations. CHT's should be the primary focus in determining engine operations.
EGT is the most critical temperature on a two stroke. It will cook in a heart beat if you run it to hot/lean. 4 stroke is totally different.
@jimchuk8511 The more I've looked into it, I think I'll tend to disagree. CHT is what burns up engines. EGT is a monitor once you've got things dialed in. EGT is a measure of the efficiency of your burn. CHT tells you piston and cylinder health.
The big caveat is on turbos where high turbo inlet temps will melt the turbo.
I would respectfully ask, How many hours have you flown behind a two stroke engine. Two strokes use a good bit of fuel just to keep themselves cool. Otherwise they burn themselves up. There is a reason Rotax EGT red line for two stroke is 1200 and up around 1550 for a 4 stroke. Obviously you can't have excessive CHT in either type engine, but usually high CHT isn't that much of a problem on a two stroke. Most are fan cooled and that works pretty good. Jonas' is a free air and obviously wasn't set up quite right. I flew a 447 free air in my Himax for over 150 hrs with no issues. Quite a few other 2 strokes as well. Forget what you know about 4 strokes when you are talking about 2 strokes. @@highmarkrich
@jimchuk8511 I've flown zero hours behind a 2-stroke but have probably 1000's on 2-stroke engines between dirt bikes and snowmobiles. Seems like same principles should apply. Again, I'll defer to engine experts like Mike Busch.
Yeah but Mr Busch isn't dealing with two cycles. As a long time snowmobile racer dealing with many larger displacement 125-150 HP high power engines I can assure you EGTs are very important on a two cycle, they tell you mixture settings much quicker than cylinder head temps, ok.
Remember one important thing about a two stroke, run it like you stole it I have hundreds of hours behind them and I would still trust my life with them.
Can it still even be called an Airbike? Lots of mods on it.
Next ultralight upgrade project: swap out 2-stroke engine for 2-cylinder Predator 670cc 4-stroke! We've seen the Legal Eagle with a Briggs & Stratton 4-stroke. Let's see you guys workout putting a superior engine (IMHO) on your Airbike!
I have some ideas brewing ;)
@@JonasMarcinko I’ll stay tuned! BTW, what are you two feeding your daughter? She’s growing too fast!
@@TenorDad breast milk 🥛!
@@JonasMarcinko God’s miracle elixir. Baby gets healthy; Mama gets hot!
“How do it know?”
@@TenorDad It also causes more frequent dirty diapers but I agree that it's worth it
Daughter’s getting ready to take over her Daddy’s channel!
Yeah, you should do a video on the PPC
@2:15 the plane on the taxi we was almost going as fast as you were🤣
Btw the only two engine outs I've ever had were in two strokes. You've probably got about 10 hours on that thing now, you're at TBO 🤣
Sense there is only one carbonator and the manifold splits to the two cylinders, they should both have the same fuel/air ratio regardless of the angle. However, on climb out, your angle of attack is increased and the airflow for cooling is not the same as it is in level flight, I believe this is causing your cylinder head temp difference on climb out.
OH HELL NO!!
Already telling dad no lol to funny.
Please share
Parachutes or planes it’s all good
Hello from Minnesota! Great episode!
Omg you guys had a baby 😅❤
Duhhhh??.... someone doesn't know how to keep up with the times.
@@james1795 Here for airplanes
Beautiful family, little ultralight is coming along nicely.
No video on powered chute please.
yes...would love to see a PPC video!
Glad to see you got it figured out.
I say ditch the PPC. Fly the electric. Seems a lot safer than the PPC
I'm amazed that aircraft is legal, it's just the look of it, it looks like such a death trap.
It’s an ultralight. It has everything it needs and nothing it doesn’t to taxi on the ground, take off, maneuver, and land.
😎
Woo!
Was the passenger in the PPC a CFI? You need to be endorsed to fly a two seater, and it has to be N numbered just like any light sport aircraft. Treat the throttle like an elevator, pull back to go up, push to go down. I've been flying these over 5 years now. Super safe, super fun! Glad you got the air bike sorted out. ;)
What kind of engine you are using how much cylinder and the weight of the engine how much powerhorse and maximum rpm
You should check out the (200 dollar airplane flying high)😅 I believe jonas your just over thinking things to much.😂
New project…I reckon you’re building a powered parachute trike with 2 seats.
Awesome update! Working the problem with all available resources!
It's physics, math, science and sometimes a dash of SWAG methodology!! to paraphrase another well known pilot guy....
if one cylinder is cooler than the other it is because you have only one carburator, there is resonance in the intake at some frequency that do not equalize cylinder flux maybe, but should not be the case à all RPM's.
PPCs are truly wild
PPG is much better
I love watching your video bro i also am interested in building my own ultra light plane just that in Africa we lake support and materials if i would get that chance i wish to build one for myself
The steerable tailwheel is most of your directional control on the ground.
Now you need to align the main gear, looks like your toe is out of spec, should have 0-1/8" of toe in between the mains
What could cure Airbike squirlyness? Bigger tail, longer fuselage, tail cone covering?
Yes, do a PPC video . Thanks!
You need an aircraft to take the whole family on backcountry adventures now!
Hmm pls stick to fixed wing… PPC have too much potential for problems that are out of your control. We (and your family) need you in one piece 👍
Edit: Re-phrasing: Please be safe. Sorry.
What a horrible way to express your concern. No doubt a reasonable request but better phrasing is needed.
Great piece of detective work, glad you've got a result for this baby at last!
More PPC, fly all the things
Jonas just keep clear of anything that is completely opposite to what you have flown before. Under instruction I lost control of a weight shift and hit the deck. Two years in a wheel chair! Four years later got my ticket back and that was 13 years ago.. stick to conventional planes.. You got a great wife and lovely kid 😂😂😂
A guy in my area died in a crash from exactly that reason. He corrected the wrong way too low and couldn't recover. He had hundreds of hours flying taildragers.
Yes PPC please, been up in a few...
Awesome you got it tuned perfect!
i was looking into PPC but Im afraid they cant handle any wind? Id love to see a video and your comment about PPC, should I just stick with ULs and PPG trikes? Im trying to find the safest afforadable flight? PPC or PPG or ULs?
it was a wild ride is all I can say. The ppc had the slowest turning radius of any aircraft i know of. and just felt weird. it was dead calm on the ground but maybe we had some weird winds up top making it feel a bit unstable. I would go with ppg trike an a A wing rating. probably just as safe as a ppc. but you can actually turn.
Please do a PPC video!!
Dang it Jonas, now I want one.
Great job Jonas’
likes here! :)
Awesome ❤
Ide love to see more ppc and ppg content!!! Your vids are great!!
Absolutely do a video on the powered parachute.
You need two more children to let you know how busy you can really be
I would love to see more videos. Whether it’s a powered parachute or a gravity powered pumpkin, you have a way of making everything interesting and fun! And you still have all of your fingers.
With so many powered parachutes failures on the web, I'd encourage you to stick with fixed wing airplanes, remember, you have a young family that depends on you're being alive.
She really wants to get in a plane, let her go!
Of course we want a PP video, we want all the videos!