DIY Electric Ultralight airplane pt3 (cockpit and controls) 

Just remember, a nose heavy plane flies poorly, but a tail heavy plane flies once.

Puppy is giant now!!! What happened??

This will get you on outrageous acts of science

Hi Peter, Loving the build so far. Just a comment on the elevator control wires. I worked as a Ships Chandler for over a decade and spent quite some time of that manufacturing and repairing the rigging of sailing boats. At 9:08 I noticed you have the elevator cables running through the eyes of the turnbuckle, however there are no thimbles in the wire loops. This is a problem for two reasons: 1. The loops will collapse under load causing the wire to lengthen, changing the consistency of the control inputs. 2. and most serious. Steel wire does not like sharp bends. When under load the wire loops will collapse and form quite a sharp 180 degree bend through the eye causing the wire to fatigue and likely, some of the strands will break. Over time this cycle will continue and end in a catastrophic failure of the connection. In your words "...if you loose the elevator, you're pretty much screwed". Installing wire rope thimbles at this interaction point will prevent this from happening while also preventing chafing of the wire as well. Hate to see you get hurt(or worse) from an easily preventable problem.

Your Doggo is a cutie, tell him he's a good boy pls.

Hey Peter, From the car racing world, be careful where those shoulder harnesses are tied into the frame. General rule of thumb is they should mount at least at the same level as your shoulders if not a little above them. If they are mounted below your shoulders, in a hard stop (unplanned landing?) they will compress your shoulders and potentially your spine. Fly safe mate!

You forgot the metal inlay at 6:03 !!! The one that keeps the wire in shape. Pls like so that he notices!!! (I don't ask for likes but this is an exception)

Peter, this is an engineering masterpiece. For you to build a life-sized plane out of Arts and crafts, you're a damn Mozart in plane technology. When you fly Peter, I hope you don't die, cause you're my by far, favorite channel

This build series is fantastic, thanks for editing this :)!

WAIT!... You didn't use duct tape for elevators and ailerons this time, you used actual hinges!?

Looking great! I can't wait to see this one flying. Make sure you are using nylock nuts or similar so you don't have a critical component come loose in flight (we see this in full scale aviation all the time). Airplanes vibrate a lot, so anything that can get shaken loose will.As I mentioned on your last video, make sure you do some stress testing of the flight controls and ensure that control surface flutter cannot emerge. Also check over the install points of your turnbuckles and the light to make sure they cannot pull out under load.

I'm not an aeronautical engineer and have no experience building aircraft; i only have limited knowledge from flying a pa-28. There are very few things that catch my attention (unlike before where i was practically screaming at the screen): The first is the hinges. This isn't a flaw, (i know you probably know this) but make sure that the hinges are well oiled and wont get stuck. if that gets stuck on full down or up then you are gonna need that parachute. it probably wont fail, but Murphy's law.. i know you also said they're industrial strength, but be careful. Remember; there are incredible amounts of force pushing on these in all directions, and this could increase the friction between the moving parts which could make it lock up. personally, i would say double up on the control lines, but that is me being paranoid. i know you got it from a heavier ultralight that should work for yours, but remember they will be holding the control surfaces against the wind and be taking the weight of the air hitting the control surface, which is a lot, even though you'll be flying slowly. good idea with the elevator control being on the outside for easier access. +1. i would recommend (if you aren't already planning on putting this in) is the scissor hinge on the rudder pedals. i'm sure you know what they are, but just in the odd chance you don't, would recommend you search them up and makes sure to include them so you don't mix inputs to the rudder and overload the control lines (just for safety). just remember to check everything, since it is always the most smallest, stupidest things that do you over big time. (i speak from experience) i recommend this because i *really* want you to over engineer this aircraft. if you under engineer it, you wont won't be able to change it later best of luck with the future of the project fly safe.

Came for the plane. Stayed for the Pupper.

Move your harness a little higher. In driftcars it should be horizontal or max 20 degrees down, because if its mounted lower it will compress your spine in case of an accident. I guess for planes it should be the same.

Good on you guys for supporting hurricane recovery efforts.

Were the pillow blocks ABS or PLA? The strength of modified PLAs is decent these days but the temp resistance is crap, hot days will see them turn to chewing gum. Get some PC if the taz prints it, it's insane tough.

Peter pls try not to die cause your pretty cool

I LOVE THAT DOG I mean um I love the vid Still the dog more

The combo of smooth music and material working noises really is pretty damn satisfying to watch when combined with that editing, nicely done!

Hey Peter! These videos are great, your craftsmanship is super good and i believe this plane is going to be a super interesting project. I'm a pilot and I'm graduating as an Aerospace engineer, just wanted to give you a quick consideration about those pitch control cables. Having them outside your fuselage may be a little dangerous for different reasons... Cables aligned parallel to the airflow (along an incostant flow pressure) may lead to vibration/oscillation, which means it's usually safer to have them perpendicular to the airflow (see those biplane wingstruts). Altough at those speeds it shouldn't be a major issue, it could lead to controls inaccuracy. Having the cables exposed could also bring accidental damaging during ground operations such as moving/transporting the aircraft, and, even if it might seem a bit odd, could be very dangerous in case of bird strike, which i thought was an incredibly rare event until it happened to me twice in a year of flying. There's plenty of room inside that fuselage, I'm sure you can come out with something way better than having those cables exposed all along the plane. Keep up the good work, good luck!

Please add a waterbaloon dropping system

Cant wait to see this thing fly

When you finally fly this project can you dress like a 1930s aviator for effect??

7:37 I want that guy to read me stories at bedtime.

Hi Peter, I wanted to make two main suggestions. 1. See if the local EAA can come by and look at your build and I am sure they would have some great suggestions. 2. Flight Instruction. If you could come out to Arizona I would be happy to work with you in my Cessna 150 but if you could find someone local they could give you some invaluable experience. With your experience I do not think it would take too many hours to get you soloed, but I think it would be the best thing you could do for your safety. My last comment is on your current video. The plane looks great and am happy you bought AN parts. I would suggest one change to your shoulder harness belts. Those AN bolts will pull right through those aluminum channels you have them bolted through. You will need to beef that up. The other issue is you have them mounted too low. I can send you pictures of my Cessna aftermarket mounting of a 4 point harness. They need to mount above your shoulders. Nice work on the plane and videos. Please take me up on my offer or look local for some instruction.

Puppy 😍

I've watched this playlist many times but only this time did I notice the shotgun and pistol brace at 2:18 lol. Very nice.

I can't wait for this project to finish

So... Where is the ejection seat?

That pupper. My heart is melting. What breed is he?

I really hope that its light enough. So much work is going into this project

Peter, i love that you are doing this. I wouldn't have the patience to document the build the way you do or at all for that matter. And i think there should be thimble eyes on the ends of the cables where they go into the eye bolts. They spread the load over more cable and reduce the sharp point load. I'm not an aircraft builder but do fix machines in my job and have worked with steel cables in a past job. Thimble eyes. Do it! Stay safe!

hey peter you upper seat belts are mounted too low if you crash and you body rushes forward you spine might be compressed due to the belts pressing it down if you lean forward

3:47 praise KEK

The plane looks great! I think it will fly fine.

I just have to say that I am continually amazed by how much editing you do on these videos. I really love the style.

Since you're putting so much work and effort into this thing, would you consider painting it? By the way, you have a great channel. I'm with you since 30k subs

It's a win-win situation. Either you build an epic working ultralight and fly around, or you take off go 1000 feet in the air before everything breaks simultaneously and your story will be told as a cautionary tale to all airplane builders

Yesss, I have printed with tpu just fine, just make sure you print rlly slowly

Beautiful build so far, Peter. Absolutely love it

Since you're so concerned about the elevators - why not a 2nd set of cables on the other side of the plane for redundance? 2=1 and 1=none!

If You survive will you build a space shuttle and or moon lander?

This is awesome Peter, you're such inspiring !

Peter you are an inspiration and credit to young people everywhere,your knowledge and skills are so enjoyable to watch,this latest project is something else and we are all behind you for its ultimate success in getting airborne safely in this fine flying machine,your puppy is adourable and seems to like joining in everything that you do,well done forsuch a splendid project.

14:50. Peter can you give us a link to where you bought that fabulous scarf?

i bet your dog was in the box that fell down the stairs

I'm liking these multi-part build videos. Keep up the great work Peter!

Beautiful work Peter! keep it up

I faked sick from school to watch this

PUPPER😱

Good luck man keep testing things out and stay safe

looking really good....

Yeer

I almost forgot you where trying to get yourself killed but then this video poped up, im realy gana miss your videos. Oh by the way cute puppy

Remember to add washers, to prevent damage to the really nice structure you made, and some type of thread locker on those bolts and nuts. (I can't see if your nuts are already locking nuts with nylon rings) If you don't, they'll eventually come loose due to vibrations caused by uneven aerodinamic forces (like prop wash or simply crosswind) and slight imbalances on the motors themselves...

Good job Peter, keep up the good work! Looking forward to seeing this thing fly!

You should do a Live Video on RU-vid for the takeoff. it will be awesome, and you could get some extra cash, god forbid, if anything goes wrong, and you need to fix the plane, or yourself!

peter can you be my dad in next life

I can't wait till this is done

Amazing project!

Please learn to crimp cables properly if you want to live. I feel like you are sorely underestimating the aerodynamic forces and vibration the parts you have will be subjected too. Borrow a real crimper and get a copy of the FAA's AC 43.13-1B for examples of safe techniques you can use to complete basic tasks such as this before you end up injured or worse. Sincerely, A concerned Aircraft Mechanic

definitely not nr. one

Hey Peter. I'm currently a freshman in college and my major is aviation science. I love watching your videos and it inspires me to someday build something of my own. I hope your flight goes well. Good luck :)

9:50 "I'm pretty sure that's fine" famous last words, but seriously good luck with it.

If you come to Florida. Don't it's hot and hot and really really hot

but.... how will you get it out of that room...?

Goes together like an ft build!

Love the dust clearing system for your jig saw!!!! LOL

You should make this project a R/C plane first. then once you know it works, jump in.

No hotglue?????? What!????

Awesome craftsmanship. I can tell you have years of engineering. I'd go flying with this but then again I am nuts.

Suggestion on the harness. You should mount the shoulder straps higher (above the horizontal plain of the top of your shoulders). How it is now, any harsh forward momentum *your body* will exert (as in a forward crash) the shoulder straps will cause spinal compression. This is in SCCA regulations as far as a race harness is concerned..... because racecar :p

Grow a beard

Great stuff, looking forward to your maiden.

Peter you are amazing. I always enjoy your video's. The plane is coming along nicely. Be safe

I really enjoy your editing style. Keep up the great work!!

Dude that 3d printer is AMAZING

Peter I love your content, you have an awesome sense of humor, keep it up

Thank you for planning to do help with stuff for florida, that is my home (I did evac, but I have people still out there that I am woried about)

Yes!!!! I have been waiting for you to put this video out!!!

very glade to see you work... well done

I ve been watching u for a long time now ....Peter ....u inspire me to become an aeronautical engineer ..thank you 💗

Finally Part 3! Yeah

It will fly fine

Greetings, congratulations for your progress in the project.

I love that doggo!

Amazing! You are one talented guy.

Your dog is the cutest dog I have ever seen , makes my brain melt

I feel lazy watching this genius work away like a trooper, on my weekends I just blaze until my eyes close - but I love watching!

This whole project is awesome but the dog defiantly steals the show I love that dog 👍🏻👍🏻

Just make sure to check the ends of those cables each and every flight and replace when frayed. There are plenty of recorded crashes because those cables snapped where it meets the crimp and the wings fold and they come down fast n hard.

Very good project Peter. I wanted to build a plane similar to yours three years ago, but I did not have the place and the time. Do not stop, your project is very interesting to watch.

I think half the reason I enjoy the vids lately is the painfully adorable puppy shots. Be safe up there Peter!!

Amazing video editing!! The work you do is incredible! Can't wait to see it fly! Wow!

Wow this is amazing I've always wanted to make my own airplane from scratch ever since I was a kid you are masking my dream come true can't wait to see it fly!!!

I absolutely love the puppy.

ive been waiting so hard 4 dis update!

That outro is gold.

I've seen your early work I'm confident you will succeed in flying it.

Your videos are awesome and super inspiring. I cant wait to see the sky pupper fly!