DIY airplane Mk2 (I crashed it!) pt3
ฝัง
- เผยแพร่เมื่อ 17 ก.ค. 2018
- yaaaay! the first majorish screw up hahaha.
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• And So It Begins - Art...
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Peter Sripol
PMB328
3195 Dayton Xenia RD STE 900
Beavercreek, OH 45434
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This video is purely for entertainment value, any and all replications of any experiments, projects, and creations or similar are the sole legal responsibility of the person(s) involved in replicating them. PSproject can not be liable for any information or misinformation, wrongful use, damage to personal property, death or any circumstances that result from replication of any projects seen.
Be safe and use your head people! - วิทยาศาสตร์และเทคโนโลยี
I must say Peter. When I was younger I was a daredevil with virtually no fear. I look back and my only regrets are not doing more. Now I am older and crippled up from disease and limited from many activities.
After watching your flying vids, I must admit you have balls the size of bowling balls much bigger than I ever had. You only have one go around in this world, Live it to the fullest son, live it.
His heavy balls broke the landing gear.
grntitan1 how can someone go to 80 or something from a very young age in no time
Wither Titan I don’t follow your question. Who said anything about anyone being 80?
Gavin Knowles..
*HAHAHAHOSOASHDHAHAHAHAHFS0GOIFAHAUJSHAJDSHAHAHAHAHAHAH*
Making planes that don't fly isn't living life to the fullest mate.
Did you try unplugging the mill and plugging it back in?
OMG XD
just a simple reboot should work my dude
Just blow on the cartridge, simple.
Perfect.
It was great meeting up with you and helping unload and assemble this beast at Flite Fest man! Good luck with the repairs.
Small failures are stepping stones to great success. Can't wait to see this thing in the air again. Love ya Peter!
next level video editing! nice one Peter! Also good catching up with you at Flite Fest!
I swear, you’re eventually gonna make a plane Mk 3 and it’s just gonna be a foam Boeing 747.
no a flying dick with m60 sperm gun
Jeibaru Turay why?
Jeibaru Turay The hells wrong with your imagination
pixelking why not?
And after that? Space shuttle?😂
Peter I'm disappointed. *You clearly didnt use enough **_Flex Tape._*
That one Guy
Flextape has been banned because it is too op. I hear they are gunna nerf it though
But they just buffed it last patch tho
@@irfanfarid9257 nah they actually canceled that patch, didnt even know you could do that
*F l e x t a p e b o i*
Flex be twong
This felt historical, like the Wright Brothers of electric airplanes.
In 2018 it's a bit late....even for electric. In 2010 an electric Cri Cri. Record speed 260 kmh, 161 mph th-cam.com/video/dcXsOWjmNbQ/w-d-xo.html
Only a few seconds though just like the wright airplane
@@justsomerandomdudewithinte863 People like to bring up that the Wrights' first flight was only for a few seconds, but they flew the Flyer for one minute, covering 260 meters on the same day it first took off. Also inb4, they didn't use a catapult to aid taking off untill after 1903.
He will come in history
First plane was made by an indian in 1895 , his name was shivkar Talpade, he flew his plane on 7 Nov. But due to British he didn't got enough popularity.
At this point I guess we can quit leaving the "don't die" comments.
8hrs ago????
Lol
x9x9x9x9x9 Ikr
NANI!?
Patreon
If you make windscreen into a triangle, it will save you a ton of drag. (or just get rid of it.)
The twin configuration is serving you well, in that NO PROP STRIKE.
too much deflection in landing gear can aggravate a ground loop. It's called the Wilga Wobble. Travel is ok, but that's why struts are used, so you can get the travel without deflection. (think solid axle VW, or the corvair debocle.)
You are likely having issues with ripple current for the ESC's. you can solve it two ways:
1 locate batteries right next to ESC's, So create battery nacelles directly behind motors. (not a bad idea anyway)
2 use lots of LOW ESR capacitors(banks of them) on the inlet wire to the ESC's , located as close to the ESC's as possible on wires + and - coming from the battery. not on the motor side...
Would not hurt to increase rudder size, but maybe wait, as moving the CG further forward will help directional stability too.
If you need to get the plane to balance, conducer moving the motors forward on their mounts.
still think you should have gone with a higher aspect ratio wing, as it's obvious the drag is extremely high.
Get rid of the multi rotor props, and find some props with more pitch. They are causing drag at high airspeed, and losing thrust.
other than that, looks pretty good!
Excellent comments. Again, on the larger rudder, just add a foam/glass dorsal fin 42-48" x 10-12" that way just keep the rudder no mods.
I also think the rudder and elevator are undersized... Made the same comment on an earlier video... never got a reply though...
Also agree on vert and horiz stabilizer surface area - not only more authority but just think on what the name implies for a minute. Of course you're always going to be subject to the crosswind effect on any tail-dragger. (em caps are not cheap!)
Idontneednostinkingchannel Love your channel name by the way.. The large chord of this low aspect ratio wing will generate a lot of reflex based moment. A fancy way to say that the wing curves down, and it has a big lever. So an oversized horizontal stab will be necessary. Ironically, a low aspect ratio wing and a high aspect ratio wing do not (necessarily) require a different size vertical stab. That is dependent on several other factors (or a combination of them, and their interactions). He has probably already figured it out, or will soon. just will require a lot of stick work, or stick pressure to keep it flying. He has already mentioned the CG issue, and will probably be confused when a change in CG does not fix everything with the flight dynamics. Unless he reads the comment section... anyway, yes, you are right.
I'm liking the battery nacelle idea! Combined with the low ESR caps (also could be fitted in the nacelle) you now have redundant power banks (possible crossfeed?)
0:00 awesome spool up + engine sound!
Awesome job Peter! Keep up the GREAT work!
conclusion? get rid of the old landing gear and make a more sturdy one
And a flux capacitor as well?
The most sturdiest landing gears is those whom dont exist. Can't break something that isnt there ;)
Maybe strip the landing gear off the other plane
Conclusion, get a tailwheel endorsement, and get current on tailwheel! I didn’t see right rudder when it started going left..
craazyy22
You make it out of barrier blocks
You guys should clean off your camera lens/sensor more often.
catsdgs it's the sensor, not the lens
I blame sam
@Ian and how do you know that?
Coz it doesn't change size or move when zooming in and out
Or atall :P
Please, Peter, do not abandon this amazing project!
Great job Peter, glad you are taking small steps and assessing the problems before going higher.
Can’t wait to see the MK2 flying all over!
So a huge fan basically sent you a huge fan?
knightshousegames *I MAILED MYSELF* TO MY FAVORITE TH-camR (OMG PETER SIRPOL)
AHAHA THATS WHAT I THOUGHT
There's probably a bunch of us overweight fans. While I'm not one to say "healthy at any size", I also don't think it's nice to go calling us overweight fans *huge.*
If I lose some weight, can I fly your plane Peter?
(Yes, I'm joking.)
🤔
Yeah, it was from the fan club. But plainly, we shouldn't fan any rumors.
everytime i build a plane i always expect it to crash or something to go wrong lol. its how we learn.
(rc plane of course lol)
Oh my god what did you do oh I put the landing gear up lmfao 😂
I love how much this channel has grown you used to make cars fly now you make yourself fly on two different ultralights keep up the good work!
Fix the plane with FlexTape and Flexglue. I mean, it is a boat... for the sky?
Hopefully whothout the ankler.
Nice video peter, I love it when I get a notification from your channel
PeterSripol you could seriously change the future of aviation forever, if you decide to pursue full scale aircraft with the same passion that you have in the RC world. I dream of a future where affordable electric VTOL ultralights take over the place of cars, and they all have your logo across the side. Get after it! If you made a kit, hundreds of people would be all over that.
Shipwright here, but on my 3rd experimental aircraft build, one tip that might help: the number one error for fiberglassing is a dry layup. You can't tell just from the glass getting clear, you can still have too little resin between the fibers, and the foam core material, the most important part, from a bonding standpoint. You can avoid by wetting out the core material with resin before you lay the glass down. Another really good technique, that can be done cheaply, is vacuum bagging. It will help make sure just right amount of resin is used, and evenly distributed. I always use for projects where weight is important, like planing sail powered dinghies, and composite airplane parts. Keep up the good work.
I don’t think it was metal fatigue, flat aluminum is known for its bendyness, and you had no cross member rope, you only had the vertical suspension ropes
Right you are. The landing gear beam clearly bent without cracking. To be fair, the cameraman probably couldn't tell from his angle and distance when he said that.
Matthew Grimshaw yah the aluminum did what it was supposed to, bend, he miscalculated how much force it would take, just needs a cross member maybe with a gas spring and a few brackets
Yes. I think those cables on the LG are unrealistic. They'd be more helpful to the forces at play if they were connected more forward of their current location. Like bisect a line between their current connection point and the tip of the aircraft & connect them there. This way when the landing stresses push back they have some movement fore and aft.
John Possum The problem here was that the cable was *pushed* instead of being *pulled*. As my theory of elasticity professor liked to say, "don't push on a rope."
It was suggested elsewhere in the comments that similarly sprung cables running *up* from the wheels could have prevented this failure, and that may be true.
I think no matter what he does with the gear, a ground loop is likely to break shit.
Matthew Grimshaw yah that’s what i was thing too, too much pressure on one side will easily bend the aluminum. If they had gas pistons and a cross member then it could work, and still retain suspension
Where is your head support?? If your head goes too far back with the weight of the helmet, the next project will be adding wings to your wheelchair D:
Are you concerned about him getting rear-ended?
its only an issue if he his the boosters for warp speed
I knew that gear would fold when I saw it in the construction video! Flat aluminum bar stock isn't very strong in that orientation. We used to use it for motion picture film guidance-roller support; it's hard to bend in short sections, but long sections bend like butter.
That was not a fail, it was a beautiful learning experience. Keep us updated, please.
Peter will you come to Oshkosh? I would love to meet you, I will be displaying a BD5J Microjet at the BEDE stand in the experimental side...
The Cloud Dancers Team I’m pretty sure he is going, and I could be wrong but I think he’s participating in a forum or two! You should search his name on the EAA website :)
Great job, I still want you to build a full size submarine...
MATT B extremely hard also if its homemade I don't think it will survive the pressure real submarine feel. You can search on TH-cam and obe TH-camr made it (i think he German)
I've wanted to make a submarine since I was a teenager. Nothing crazy, just a 1-2 man thing that could do maybe 30-40ft under.
You better use something other than foam board.
Never have big balls references (within the comments) been more appropriate for someone! You are clearly intelligent and understand the risks you’re taking...but you’re doing it anyway, and THAT’S courage! Bravo young man, bravo!
I can't make it to Oshkosh this year, but I'm going to have my parents take something to have you sign, if you don't mind signing stuff.
Did I mention, "terrible landing gear?" I think bonding some foam (airfoil shape w/ recess) to both sides of the aluminum, and glassing it would toughen it up enough to get the aluminum so it does not yield. Really excellent back of the napkin engineering-the details from the montage are SO cool! Add a long triangular dorsal fin-doesn't have to be real large but will help directional stability with little weight cost and will improve lateral twitchyness a lot. Landing gear: cut off legs leaving the horizontal stubs. Bolt on a 6-8" 4130 1" x 0.058" longitudinally with two 5/16" bolts to horz alum on bottom of fuselage= gear mount pivot. Then 0.875" x 0.065 x 1.25" stubs (fit inside longitudinal tube above) welded to two 0.875" x 0.065 x ~24" to form a 'ladder' with cross members for torsional rigidity with a plate welded at the base for the axle stub (with triangular reinforcements). Use existing spring/cable setup. contact me and I will send you a Fusion360 drawing.
Why not simply use tubes with hinges instead of the thin sheets he’s using now? With a parallelogram arrangement he could even ensure that the wheels are always vertical. Another option would be using two mountain bike front suspension forks and mount small bicycle wheels to them. They are built to take heavy beatings and a fork only weighs ~1500g.
Tldr mate. Epoxy and glass fix all!!
Please clean your lens
It’s either the side closest to the sensor or you’ve got dust inside it somehow
But plz
What? Sam's spit isn't good enough for you? ;-)
This is exactly the feeling of flying in a dream, that just taking off the ground that my soul wants!! Its amazing to see all the work that needs to be put in in order to have that one second of bliss
Keep designing, testing and inspiring, Peter!
I can help you get that part machined, I'm just outside of Indy. Do you have a drawing for it?
Sent you an email with my phone number
This is completely planned
It’s like you haven’t even heard of retractable gear
good one lol
lol
I'd like to see a safe and reliable plane before we start getting too optimistic with cool features.
Except retractable landing is cheap or safe to make🤷♂️
Jon Eigen I’m saying that the fold was because they are retractable. Clearly jokes land with you as hard as peter lands
Awesome job Peter. Enjoyed spending time and conversation at Flite Fest. Best of luck and good health to you!
Good job, Peter! Great work.
That little hair on the lens kept bothering me
I think the sensor is damaged, it's in all of his videos
It just needs a clean, notice dust spots?
First of all, congratulations on such a task. Regarding the undercarriage, apart from strengthening in the obvious areas that others have mentioned in the comments I have a question. Usually undercarriage legs protrude below the fuselage not only to clear the body of the aeroplane but also for prop clearance with the aircraft a level attitude. However because your prop clearance is no issue here, why make the undercarriage legs protrude so far? I mean if you shortened them and had a more protruding tail skid to clear the lower fuselage, many of your issues would be resolved. With the aeroplane in a more level attitude to start with, it'd be far easier to rase the tail...
but then you need to lower it again to t/o
For good examples of a tested simple main gear of such design, search for "flying flea"
Well ultralight land in other areas the an airfield. For example farms, dirt roads, and even short clear area landings. If it's to short the aircraft would dig in on those landing. That is why he went with that height. Like a Bush plane to avoid crash on landing do to to short of a landing gear
Hey Peter, you pushed the stick forward at 7:13 and she went around immediately. Keep the stick back for weight on the tail during rollout just like any tailwheel airplane! Awesome work!
Peter, love how you did the wing assembly amazing design!... fun run... congrats..ed
Seems to me a keyboard aircraft specialist that the vertical stabilizer is a little small. Causing some under damped yawing motion.
Awesome!!!
Thanks Peter, Your videos are my favorite on youtube and you really make my day happier!
I'm camped in the eaa campground at Oshkosh. Plenty of great landing gear designs will be displayed all week once the show starts! No reason to reinvent the wheel when it's faster just to adapt a proven design. If your feeling lazy you can buy brand new gear leafs for ultralights right at the show! There's usually a used gear leaf for sale in either the fly mart or at the red barn down by the ultralights. It's a big show so chances of stumbling by you are thin but you never know. Ignore 99 percent of the comments; even if they mean well, most of them sound like they don't have a clue to make anything on their own. About 1 percent had some valid information worth reading.
I knew it was gonna be a landing gear issue!
It wasn't a landing gear issue, it was an equipment-failure-induced lack of rudder authority resulting in a ground loop, which should be expected to cause damage. The gear may not have survived a good landing, either, but that's not what happened here.
Matthew Grimshaw yah he really took into the tail-dragger idea here, but a cross member (maybe with gas pistons) could helped it not bend inwards (I’m just looking at the mechanical failures here, like my life)
Yeah, to be sure, the landing gear needs some work. I think his general approach is good, though, starting simple and adding complexity when necessary.
peter you should do a giveaway where you give someone the GIANT 3D Printed Utility Ship
4:09
-"you know what you're doing"
- "No"
- "La cdsm" jajajajajaj
Saludos desde Rosario, Argentina!!!
While travelling down the runway you remember, 'I don't know how to fly a plane!' Haha, I'm just kidding, as I don't know if you can fly a plane or not.
It appears seriously underpowered
I don't think he got to full power
Pleeeeeease can you make a cheap 3D printed RC plane tutorial for beginners?
You're a legend for doing this work. It's only a minor set back
Was fun seeing it fly...and!...fun meeting and speaking with you at FF west 2018
The madman. . .
7:52 “that was a scary landing” any landing is a good landing of you can walk away from it
If you can use the plane the following day, it's an outstanding one!
I'm socially Awkward that’s a great chuck Yeager quote
Nice work on the takeoff run =) One thing I had problems with early on in my training is remembering that on the landing roll, the slower you're going the more crosswind input you need to stay straight. Your rudder work is better than most PPL I've seen =) Don't stop flying it till you're stopped!
Every video Peter, I sit transfixed. Best aeronautical content on the www .
Too slow at take-off. AoA very high, so very high drag.
Get more speed before take-off.
And could be undepowered.
now you need to weaponize it with airsoft guns and have dog fights with other aircraft but not to an extream
The Sky Pupper biplane wins Honourable Mention Award at Oshkosh! Congratulations!
"Mistakes were made but they're not, you know, bad, well, they were kind of bad but, you know, It's nothing fatal." LOL. I nominate you for low bar of the year.
Aeroplanes have 2 wings they use the wings to fly in the air.
Wow really?
What about a flying wing? Or gyrocopter?
Biplane? Triplane?
Whhhaaat ooohhh myyyy ffffff gooddd that's incredibleeeee
I wanna meet him at Oshkosh so bad it’ll be my birthday while I’m there, which would be even cooler, leave a like so he can see in time!
Hey Peter as a big fan of your videos I hope you read this comment. Please try to always remember to strap your helmet, as a motorcyclist with experience in crashing the strap really makes a big difference in safety. Safe flying Peter!
I wonder if this old Tony would be interested in assisting you in your adventure. I see he’s been helping people out on TH-cam. Great work
as smart as you are, and you use flat stock for your landing gear?????????? the mind boggles!!!!!!
He didn't account for the unexpected forces (moment twisting the gear, inward force generated by the twisted gear). In a perfect, frictionless world the gear would be just fine.
The gear is to flimsy
The flat stock has bending compliance which allows it to act as a spring, dramatically reducing the complexity (and weight) of the gear system. Obviously it didn't do everything it needed to do, but it wasn't a crazy design.
Sometimes great ideas are as surprising as bad ones. Try understanding how transistors work some time, and don't be too surprised if that boggles your mind, too. I wouldn't be so quick to assume everything surprising is stupid.
Flat stock? You mean like Cessna? www.avotek.com/shop/cessna-landing-gear-assembly-al-26/
hey there is a torsion bar behind that landing gear so. back to my first statement FLATSTOCK!!!!
How much would it cost to build that? For a regular person like me, having to buy the motors and everything individually
MasonP13 probs near 4k
Don't let anyone bring you down keep doing what you are doing
Great video! I appreciate the background info and details.
3D Printed air plane😀
Deniz Tech lmao
you wouldn't download a plane...
hexpress bet
hexpress download pieces and stick together😀
hexpress as if same big boat
oof
Can we get 5000 subscribers with no videos?
Hope you can get 10000 subs with no videos
Can we get 5000 subscribers with no videos? I don't like channels like yours because you absolutely nothing and get subscribers for it I've been trying for over a year to get 100 subs and you have 2000 from nothing it also doesn't help that TH-cam doesn't put my videos in anyone's suggested videos list
Justin's Trains that's luck bro
Justin's Trains Stop taking breaks and making “I’m quitting TH-cam” videos😂
The lego Classroom I make quality content
Glad to see you in one piece, Peter. Forge onward, you learned something.
You sir, are an artist.
It feels very underpowered but what do I know
he said they were the testing motors...
11:12
Sink Water Flavored Ramen Noodles
I would personally base an ultralight build around a gas engine pod dorsally mounted on the top of the wing but I understand the simplicity of an electric motor setup
If i were to ever make a plane like peter i would use electric motors, it seems way more simplistic, lighter and quieter than a gas/diesel engine but hey thats my opinion
TrolltheBurrito, how did you feel it?
Flat Out
Intimately ;)
Wait are you certified to fly a manned airplane by faa?
BTW you should fly some flight simulator such as xplane 11 or fsx
Techniques For Everything it’s an ultralight, so he doesn’t need a license. I could be wrong tho,, ask google haha
Do your research... Here ya go: www.usua.org/Rules/ruleandregs.htm
Peter has a pilot license.
Watch his videos, he has a PPL.
hard to believe he has PPL and still makes such rudimentary mistakes in design and execution.
Great to see this at flitefest! keep up the work!
Good one back to the landing gear drawing board. Great job buddy.
It's such a shame that every one of these videos is ruined by the person operating the camera not cleaning their lens before filming. I've noticed this for MONTHS now.
john jones I kinda like the dirty lens feel of this video. Like an old movie feel.
john jones sensor btw
I wouldn’t say ruined, I just whipped my scream a lot trying to clean it
Shane Stephen - apparently you suffer from some sort of learning disability, so I'll try to be clearer and type slowly for you. These are Peter's own once in a lifetime Wright brother moments, and the recordings of same are unnecessarily forever marred by poorly maintained recording equipment - and this has been going on for months. If that makes me a "sad sad person", then so be it.
john jones What would typing slower do? Dumbass. These videos aren't ruined or harmed in any way. Peter and his channel look at the bigger picture of building lots of cool projects quickly. He doesn't sweat the meaningless specks of dust or any other negligible shit. He gets stuff done.
Peter try using spars to connect the landing gear and to make it stable. Im only 12 and have no background in aviation other than the National Flight Academy Pensacola, Florida. Also do you still do comment shoutouts? P.S. Don't scare me like that again!
Sir Baller I think, with engineering background, that it looked like inelastic buckling. There's very little that can be done without some additional engineering.
"Just the landing gear, nothing critical" lmao
You recreated the wright brothers moment dude...
Awesome👌
Clean your damn camera
the old plane was better
But this one isn't finished
hey peter... amazing work, cant wait for Mk3? ;)
Nice job on those wings. Beautiful work!
The building process part of the video is just mesmerizing....
DUDE Loving your progress with aircraft design. Don't let these things slow you =0D
i am really glad you are making another one - but in saying that the old one looks much nicer and seems to fly a lot better. i hope this one comes along the same way given a little more time. nice work!
I think you are an amazing person, We need more people like you!
I went to OSH18 by myself and it was my first time! Recently got into aviation. Hope to see more videos, really cool!
Power to weight ratio, you nail it kid.
I hope your new motors will give you a significant power increase, as you were struggling to rotate. Obviously you know about the landing gear :) Also, I think you should add a spring strut with a wheel for the tail to raise it off the ground and lower drag during takeoff. You are awesome!
You are so awesome, love it how you build your own plane, so good to watch, keep up the good work Peter
Thanks for the "This Old Tony" nod at 3:22!
This Old Tony influence detected at 3:23. Also, poly glue is great for flexibility and hold power. Great for the application. You're insane.
The restraint system looks better, so you've got you're insane going for you.
Good flight. Keep at it you'll get there. I'm impressed with your power. Keep flying, keep posting. We'll watch.
*destroys the whole world*
Peter: whoOPS!