DIY airplane pt2 MK2 

Don't sweat the schedule, build it right and safely is all that you should be worried about. Now that I said that, can't wait to see it fly.

"Man I really wanted to *build my own airplane* in a month" I once built a model airplane over the course of a year.

*pulls AR mag out of VCR*

Been waiting all week for this, hope you hit 600k this week!

6:10 Doing a flight test at an event put on by FliteTest doesn't sound terrible, it sounds amazing!

Pete, The landing gear is going to kill you. When was the last time you came across an aluminum spring? Aluminum doesn't like being flexed. It work hardens terribly. and it doesn't matter how thick or thin it is. Replace what you have with steel, or put a hinge joint at the fuselage. The two sides aren't going to fail at the same time, so when one side fails..... Odds are you will be going fast when it happens.

When you were welding i instinctively squinted my eyes to protect them! Yeah....been welding a while. I love your videos peter. So envy.😃

Not boring for me. Want to see more. I build a lot of things myself without a lot of plans. Been doing it for years but still inspired by your builds

Thank you peter for bringing the world your content and I've been waiting all week

you better fly into flite fest on that bad boi

Dude I really commend your knowledge and use of rivets welding drilling and fabricating. You are quite the inspiration and I seriously cannot wait to see what a beautiful plane you produce. That welding looked amazing!

I like how your dad helps you with creations and is not lazy and laying in fame as other dads do!

This Plane Is gonna be so SICK!!! Nice job!

As rough as it may have looked, the stressed skin design of your biplane's fuselage seems superior to what you are trying to do this time around. Within limits of available vision, the fuselage you have built seems to be a single-plane truss with no rigid carrythrough structure from the front of the fin past the upper longeron to the lower longeron, just assemblies with bolted joints at points of concentrated loads. The fin has a lot of leverage over those simple attachments. Wire bracing to the horizontal stabiliser will secure the fin relative to the stabiliser but not help this issue The arch in the structure relies entirely on the bolted joint through two plates which are not tied together other than by the through-bolts. There are no additional webs on the undersides in lieu of welded strips joining the two plates which would be a best method. Once you have the mass of your wings and engine attached, the fuselage may "fishtail" violently enough to loosen the bolts, elongate the bolt holes and start cracks before you can put the aircraft onto the ground. Your method has been done before except it was a single tube structure between wing and tail. It also broke as yours may also. The cause of the failure was aerodynamic flutter, a condition in which destructively violent energy is extracted from the airflow due to flexing of the airframe or parts of it. The tail twisted under and control was lost. Do you have any anti-crush inserts inside those hollow tubes where they are through-bolted. Have you considered an aviation grade adhesive between the faces of those bolted pieces to avoid fretting and opening of a clearance between bolted attached fittings. It might be a good thing if you consult with some engineers on the torsional and vibrational stresses your airframe will be subjected to which may be far more destructive than the aerodynamic loads you anticipate. They also know about the failure modes of bolted structures. If you are using a gas engine, then it is a whole new ball game compared with your smooth running electric motors on your previous project. Please consult with the Oshkosh folk. You will find them helpful in a safety oriented way and they will have the knowledge which will help you avoid reinventing some old design dead-ends. Please do not dismiss their advice. Look up airworthiness directives on the Skyfox lift strut carrythough structure. You seem to be re-inventing something similar with inferior materials. old.raa.asn.au/documents/airworthiness/AN%2095-6%20Issue%205_amdt_1.pdf

You're the man Peter Don't forget to put your rotor tiller up

There is one thing to be said with no doubt whatsoever...Your updates are NEVER boring!..and the start was hysterical..LOL!

Im again supporting you like I did at your first plane! Keep up the good work!

Your building footage is always the best!!!

If the only thing you did was build ultralights on this channel, I would still love it! Keep it coming! This is my favorite project so far!!!

The quarter inch aluminum plate sharp bend of the landing gear, at the fuselage. If that fails consider bending a larger radius then it currently has. A small radius concentrates stresses of the bending. A larger radius distributions the stresses of the forces out in a wider radius. good job I love watching your enthusiasm as you go through your projects so quickly!

Welp, I guess I'm going to Oshkosh this year after all!

This is sick love this channel i’ve seen every vid

Peter, I love your productivity! Keep up the montages, they’re great. I’m very impressed with how much you can do in such a confined space and with such basic hand tools. Very impressive. I loved your last ultralight project too.

I like it when my favorite RU-vidrs get recognised and become successful enough to do the projects they want to do.

For a Nylock to work, it needs threads past the plastic crown. So don't put short thread, especially on a critical element like that @4:13.

As a retired aviator and sheet metal mechanic, you should drill pilot holes (#30) first then step up to the size needed.....

Good luck Peter! I can’t wait to see it fly!

Looks great! One thing to consider is to make the elevator control all with hard links. Take a peek into some sailplanes for ideas and inspiration, you will hardly see an elevator with cable controls. I do not think I have seen one myself in my entire life, perhaps "basic" gliders? Fine for rudder, but for the elevator you do NOT want the, flip-flop, inaccuracies, snag, sag, oscillations, harmonics and cable breaks. A hard link control feels a whole lot more solid. There will be considerable forces between your elevator and control stick, while a very tight tolerance for errors at the landing phase.. The current elevator setup is dangerous.

In a few months you will be at 1 million subs

Some people have dumbbells at home to work out... Some people have dumbbells at home so people think they work out... And there's Peter using his dumbbells when building a homemade airplane xD

I literally love you dude. Huge hugs from a guy in Canada.

You are a pioneer in the spirit of Sport Aviation.

Put a rotary wheel at the back to turn while you're not flying

3:08 watch it ,wtf 😂😂😂 he is trying to Screw the bolt in with a ratchet but no Socket😂😂😂 but man I love ur videos 👌👌

at 6:53 in the video i would like to see a metal bracket going close over the horizontal stabilizers pulley so there is no way the cable can jump out. Working as a helicopter/fixed wing technician and have seen on some bad cases where pulley has been worn out and the line is close to go out but is stopped by the bracket. Also i would recommend to get some Cherry lock or cherry max rivets for the hinges instead of the standard pop rivets. But it looks good and i cant wait to see it flying :)

best intro i have ever seen of any show, video, or movie of all time

What about putting lights on it Like on the wings Light strips in the interior Now saying this aloud sounds awesome 😍🤗😮😮😮

Nice job peter! Check your instagram DM's for some lift calculations

Dude, not boring at all. Great progress, don't beat yourself up for missing your deadlines on a prototype.

Peter you are a very gifted person. I love the way your mind works. You make great video’s and the stuff you due is truly amazing.

Great work Peter , Hey if you had a unlimited budget would you build with carbon fiber. Would a wing shaped blimp ,like the B-2 stealth bomber filled with hydrogen an with top mounted solar panels an electric motors be a good lifting platform. With the new technology's to hold hydrogen an compress it an carbon fiber. It should be very safe today.

how much did it cost. i love this project

That intro was beautiful

Your talent is most intriguing , beyond anything I’ve witnessed on the internet. Keep up the spirit ,good luck and happy flying. I cant wait till the madden flight.. Your a genius.

Only in 7 minutes...

Dont fly it at FliteFest, Fly it *to* FliteFest

Major props- no pun intended. Building your *second* plane. That’s major genius material. So impressive. Godspeed on your latest.

finnaly after a week

Video

Will you ever do more 3D printed boats

I luv flying and vehicles but its not always possible for some people. This channel has all the stuff that I would luv to do.

From the very limited footage I've seen of it it seems to be way better than the last one. Coming a long nicely too.

Diy money please, where did you find money? I want to make thoose projects but i don't have money , i don't have items :)

3:06... I don't think that's going to tighten the bolt. 😂

Man! Way better design so far! Lookin sleek! :D

Great work as usual! Hey, watch out for cracks on that aluminum landing gear strut at the bend. Don't know what bend radius (it looked pretty small) or alloy you used, but this spot will be susceptible to cracking.

Why is it taking you so long to make an airplane? Give me a sheet of paper and about 2 hours and I can make one, step it up man.

First to comment

Bass drops on the arc strike. Well done sir.

This looks like it is going to be a great flying machine,you have put a lot of thought into this design and it shows,well done Peter ! I will say it again you are a credit to what young people can achieve.

19th view, 3rd comment Does anyone care?

This is amazing! congrats on everything you're doing and the work put forth!

Peter, with your skills, I could barely imagine what could be done with a vacuum pump and some composite stuff... !!

Peter has always been good at cranking up the volume.

Man I’ve got high hopes for this one! your building skills are impressive Peter! Have a great week

By far possibly a better performer yet

4:23 We don't care about setbacks Peter, make sure it's safe! That's our number one priority!

Your content is also my favorite

Love seeing the updates, can't wait to see you in Oshkosh! Keep up the great work!

You have an awesome Dad and Mom. I loved that he got in the slay drone first. You two are a wonderful testimony of Father / Son ... Jesus bless you both.

The first RU-vidr to build a flying machine from scratch

Finnaly the second part

Glad I live right down the road from Oshkosh

When I was young, I couldn't spend time with my dad, because he was busy with teaching math at academy... so jealous Peter! Good job!

Can't wait to see this airplane done , keep up the good work . The music is great too 👍

Amazing work!! I can't wait to see you flying in this beauty!!! keep it safe!

Watched the livestream at midnight my time (BST) was totally worth it. Best project yet!

Good to see you back with another light aircraft! The first attempt was...moving....!

That intro tho. I hope you reloaded the tape player afterwards, and yes, you can play sawblades while they're still in their box.

Always get excited when I see you post a vid like this, keep up the good work

I watch all of your videos, thank you for making these videos!

Yes! Heck yeah! This video was the best. Awesome content and really good editing. 10/10

You guys brighten my day, thank you

This was a LOT faster than your first ultralight! It's cool to see you getting better at this! :D

Absolutely love your channel Peter! I found you through one of your collaborations with William Osman and binge watched everything I could with you in a few days. Now I have to wait for every upload to get my fix!! Keep up the great work!

I love your content keep it up

I admire Peter's work

I think you should use a Boeden instead of a string to control the rudders! Strings are vibrate a lot because of the Wind. You can't control the airplane, when it heppens!

Brilliant work, and you set high standards for build time. I’m ok waiting 6 weeks if these are your results.

This is my all time favorite youtube channel

so at first.. I love how you always show the title of the song playing. Really, I LOVE it. Other channels either show the title in the description or not at all. Also, you are a funny guy with innovative ideas. I like your projects and you show the building process in great detail. So, I wish you best of luck, dont stop doing your thing and good luck with your plane ^^

Your videos are so amazing and inspiring! Keep up the great work!!

Congratulations Peter, you just hit the 600K subscribers mark!

do you know how long ive waited i starved waiting for this vid to come out

That’s pretty cool

That intro made my weekend. Well done

Like others have stated, safety is your no 1 priority, schedules and "reasons" can all come second. I like this design better than the previous one, although that was a charming aircraft. Seems like you are trying to build it sturdier, and also perhaps a bit lighter than the first project. Aluminium is amazing stuff! Regarding your age and work morale, we should be seeing you getting into spaceflight in no time at this rate! Best of luck, take care and can't wait to see this thing fly :)

Ever since you made part 1 I have been waiting so long glad it turned out great nice vid

Careful with the aluminum landing gear struts. Aluminum fatigues. The more cycles, the more micro-cracks it gets. But steel does not suffer from that problem. As long as you never exceed the yield stress, steel can theoretically sustain an infinite number of cycles. That's why it is used for springs a lot. Just inspect your gear for cracks every time you land and every time you take off. Maybe with a magnifying glass.

Dude, dont worry about time. You build it ,guarantee we will watch!! lol Ain't everybody literally building their own frikn airplane from scratch in their garage! And this is #2 so chill brother we can wait a bit! Really wish someday you'd design a kit plane for sale! Really enjoy the videos