Ultralight RC Balsa Slow flyer - Build And Maiden Flight!
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- เผยแพร่เมื่อ 25 ม.ค. 2019
- Hey guys! In this video, you’ll see an overview of the build process of my latest indoor RC slow flyer. Then I take it to an indoor flying site and do the maiden flight! Here are some specs:
Weight without battery - 42.47 grams
Wingspan - 32”
Wing Chord, airfoil section - 150 mm
Airfoil - Waco Cootie airfoil (undercambered)
Wing chord including ailerons - 175 mm
Wing covering - Easybuilt Lite tissue
Battery - either 150 or 180 mAh 1S
If you liked the video, don’t forget to leave a like, share it with your friends, and subscribe to see more upcoming content! Thanks For Watching!
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I love the neatness ...the structure and stability...thumbs up...
Thank you!
exactly my type of rc planes. i love slow flyers and ultralights. subbed!
Congratulations, nice job. 👏
Clever stuff. Well done.
Awesome job! That is indeed a very light slow flyer ;-) Well done! See you in the Air!
Thank you! Happy flying!
That flies great!
Thanks!
Great build and great result 👍🙂
Thank you!
Awesome, great work.
Thank you!
Awesome build. high five to ya
Thanks man! :)
second time i watched your video, still excellent !
Really nice. I love your plane design 👍
Thank you!
superb.respect your hardwork.subscribed. thank you brother.cheers from india.
Thank you! Glad you enjoyed.
Beautiful build ❤
Thank you!
Sweet little floater!
Thanks!
I think I will end up getting into balsawood models because of you :D
That’s great! You should make TH-cam videos about it; I’d love to see what you build! :)
@@AeroCraftAviation I'll let you know if I do :)
Very cool project, well done
Thank you!
Very nice.Great pilot skills too.Pleasent music
Glad you enjoyed. Stay tuned for more!
Very, VERY nice. Great plane, great music, great video...
Sub'd. :)
Thank you so much! :)
Nice
Nice pretty cool!
Thanks!
3:31 wow!!
Hehe yeah I got a little close to that foamie...😅
Come on man you hurt my feelings seeing such kind of planes, I adore slow flyers but I haven't succeeded in doing one like it , thumbs up
Aw thanks! :) yeah, these slow flyers can be tricky. The important thing is to use the lightest wood you can find, and also use lightweight electronics. Like these for example.
www.ebay.com/itm/PZ-15330-4-8v-6-0v-1-9g-Low-Voltage-Digital-Servo-for-3D-Aerobatic-Fly/261933131201?hash=item3cfc6e65c1:g:AGQAAOSwpwRb9hXW
Or this
www.ebay.com/itm/2-4G-4CH-Micro-Low-Voltage-Compatible-Receiver-With-Brushed-ESC-For-DSM2/254038293057?hash=item3b25dcba41:g:k5oAAOSwNlJcIMki
Build them light and they will fly slow and stable! Happy building! Cheers. :)
What adhesive did you use for holding the supermarket bags onto the balsa? How is the gyro stabiliser working? Great work, you can be very proud of it.
Adhesive for the plastic covering is 3M Super 77 spray adhesive. I use that adhesive for all Mylar/plastic/O.S./ Gampi type coverings. Light and strong. The AS3X is actually not really noticeable given how inherently stable the aircraft is, but I believe it is having a slight positive effect on stability.
I wanted mine to be slow also but it’s really great 👍
Getting them slow can be tricky. Minimize weight, and always use a high-lift airfoil! Happy building!
Nice job. Looks like your thrust angle needs to go down a bit.
I thought so too during the build process, but flight performance suggests otherwise. Hehe, maybe I screwed up the wing incidence. 😅
Nice.very slow and stable.where center point CG
Hope you're still looking at these comments! I appreciate your ingenuity and design skills. Nice work. I'd like to build one myself. And though you give some of the important dimensions, I would greatly appreciate it if you could share the plans. Do you have drawings with dimensions you could make available? Thanks very much.
I sure am! And you know, I'm sure my messy sketches are half rolled, half crumpled up together somewhere in my basement back home. I'm at university now and can't access them. And I can't with great certainty recall what any of the particular dimensions were. I really am sorry about that.
Wow! Well done! How happy were you with the flight? Did you notice things you want to fix? Although I know next to nothing about aviation, I like your organized and methodical process and I've always loved watching homemade aircraft of any kind. Did you find that making these videos documenting each stage of the build helped you be more organized and methodical, or are you just naturally that way?
I find that I am naturally very methodical, so this style of document my build processes just came naturally as I got better with editing and got more serious about my TH-cam channel. I also like to make these organized documentations because I find that the majority of build videos I watch on TH-cam don’t document the whole build, or don’t progress sequentially, and thus don’t give very complete representations of the build. I try to avoid this by making my videos as straight-forward and clear as possible. I definitely did notice things about the flight characteristics which I would like to improve upon. For example, I noticed that although it was slow, it didn’t naturally stay slow, and it often ended up stalling when I tried to pull the nose up and slow it down. This tells me that I likely need more down thrust, and maybe the wing should’ve been higher above the center if gravity. Also, the wing was not producing quite as much lift as I thought it would, which means the airfoil probably didn’t have enough undercamber (curvature in the underside). Also a higher angle of attack between the wing and horizontal stabilizer would have helped.
@@AeroCraftAviation Thanks for the thoughtful reply. Best of luck to you on your next flight. ;~) GB
Tailheavy !
Lol everyone is saying this and I don't get why it's such a mystery. Slow flying aircraft are meant to fly at a high-alpha angle of attack. To achieve that, the CG is shifted back. The battery is even suspended below the aircraft such that at high alpha it pulls the CG even further back. I wanted this aircraft a very specifric amount tail-heavy. A standard CG is highly undesirable here, especially flying in an indoor space with other aircraft. Slowness is key, so tail-heaviness (and high incidence) are key.
ultralight mini airplane is my favorite ever since I watched a black and white video about ultralight mini airplane powered by rubber band in TV back in 1970's. The video probably was from 60's, 50's or even earlier.
Yes this is really the most beautiful, fulfilling, and fun part of the hobby for me. Lightweight, slow-flying, peaceful little fliers. They were much more popular back then than they are now. Unfortunately, our modern culture of instant gratification and short attention spans has lead my generation away from such a beautiful hobby and toward more superficial things like video games and social media. So i must do all I can to keep the hobby alive and bring it to the world. :)
NICE JOB! What did you cover the wings with?
Thanks! Wings are covered with Japanese Esaki tissue paper. You can get it pretty cheap from easybuiltmodels.com
@@AeroCraftAviation Excellent! Thanks for sharing.
Very nice , great plane, what is the size of motor you installed
See here: www.amainhobbies.com/hobbyzone-gear-box-motor-set-hbz4930/p172224?gclid=CjwKCAiAr6-ABhAfEiwADO4sfah5R0bPbEhLfROEAADIXF0mb4kG4DePO8YG3nt-0sDXLi1l8Z0hCRoCyeoQAvD_BwE
@@AeroCraftAviation thanks
Nice job dude! Love the veggie bag idea. How is the all up weight of this plane compared to the weight of the plane that was originally being powered with that system? Looks like a very predictable and gentle flier. Well done!
The original Yak 54 was 39 grams, whereas this is 42.47. The Yak was a 3D aerobatic aircraft, which means the motor has a LOT of power. So this slow flyer even has enough power to climb vertically.
Nice! Lots of Power is good. Looks like it has a very nice balance of power and float-ability. Looking forward to seeing an outdoor action video come springtime.
Well, as soon as the indoor season is over, this thing is going back in the storage bin for next season, because it is simply too delicate for outdoor flying. The varying humidity, heat, and sunlight outdoors would definitely ruin the airframe, being that it is all from super light 1/16“ and 1/32“ balsa. And that’s not to mention the wind, even a little bit of which would make it simply unflyable, and any more than 3 or 4 mph of which would definitely snap the wings. But never fear, I have some new outdoor flyers ready for outdoor action as soon as Spring rolls around!
Yes after all that work, I would not want to see the wings fold due to an errant breeze. Didn't realize it was quite that delicate.
Yeah it’s maybe a bit overkill when it comes to being lightly built, but it’s worth it if only for how slowly it flies.
Love your videos dude , but why Copterdude ? You only make planes ...
Haha good point. I used to fly helis. Flew them for from the time i was 8 till i was 12 or so. Then i got bored of little helis and wanted to go to bigger (450, 500 size) helis, but couldn’t afford them. So switched to fixed wing which was affordable. Still really love helis, and i still often fly my helis. But i post fixed wing content because it involves building and design and ends up being more interesting. My goal is to return to rotorcraft in college when i can choose my field of aeronautical study.
How to making point center of gravity
You dont need gyros to stabilize something that flies that slow. And it still flies like its super tail heavy.
Don’t need em, but they’re built into the board so I had the to work with them. As for tail-heaviness, I think a lot of people are unused that seeing an aircraft that tends toward a high alpha attitude, but actually that’s the goal for slow flyers.
Beautiful job ...👍 🇧🇷 I just think the center of gravity should be a little bit more in the front.
Thank you. Huh. Many people are pointing this out. The CG is very intentionally placed exactly where it is. That is so that the aircraft tends toward a high angle of attack, and flies slowly. If the CG were farther forward, I would have to hold constant up-elevator to achieve the desired flight speed, which would have a few negatives, not the least of which being impracticality. I may make a video explaining this in further detail. Would you like to see that? Cheers! :)
@@AeroCraftAviation Yes the high alpha position, almost on the point of stall, is desirable for extra slow flight.
@@bobwebber8521 ah thank you! Finally someone gets it. A lot of people have been objecting to the high alpha attitude of my slow fliers. Rather annoying. Glad to see at least someone gets why it’s optimal. Cheers. :)
@@AeroCraftAviation - You could install the wing at a high AOA on the fuselage, to avoid all the extra drag from the fuselage and the tail.
Would save battery power, and look nicer in flight as well!
@@julesdomes6064 That is a good idea. Silly of me not to have thought of that before. 😅
What size motor did you use?
The 8mm coreless brushed motor with gearbox from the E-Flite UYMX Yak 54.
Obviously you have an excess of lift capacity. How about mounting forward firing rockets on the wings and have a go at shooting down another model airplane?
Haha looks like this one is already shooting them down: figuratively speaking, with its awesomeness, of course. 😂
Does it turn right? Lol nice build
Sort of. The motor torque makes it hard to switch directions from left to right, especially when it's in a steep bank. Thanks. :)
@@AeroCraftAviation Only teasing, actually just learned alot more about motor torque as I've been building more.
Very nice, as always! As tight as that turns, I think you have a 32" LRF! That's the video I want to see.
Thank you! What does LRF stand for?
Sorry, it's Living Room Flyer. I think your plane has the capability, and I think you have the skill. Just watch out for ceramic nick-nacks and such. ;-)
Ah I see. Well I’ll see what i can do! It would be risky, cause you know, that tighter you turn, the faster you fly, unless you turn totally flat, with rudder, at which point you get unstable, which is equally tricky to handle.
You might be able to cross control and make very flat turns, indeed. Steer with the rudder while giving opposite aileron to keep it level. I don't think it would be that unstable. I'd practice in the gymnasium, though.
That’s true. I hadn’t thought of cross-controlling it, past whatever small amount of cross-controlling I naturally do when flying: I will practice that. Thanks!
I'm no airplane expert, aber ich meine dass das kein Erfolg ist. The tail is constantly lower than the body, and it'd be very unstable under natural conditions. What were your goals while constructing it?
Also, is eigentlich ziemlich egal ob die Leitwerken über oder unter der Flügel sind, weil die Stabilität des Flugzeugs, und die Kontrollfunktionen der leitwerke nicht wirklich darum gehen. Was eigentlich wichtig für so einen Slowflyer ist, ist das der Schwerpunkt des Flugzeugs sich ein wenig unter der Flügel befindet, weil dann hängt der Gewicht unter der Flügel, so zu sagen, und es schwingt so ein bisschen wie ein Pendel, wodurch das Flugzeug den Stabilität hat. Also mit diesem Flugzeug im Video habe ich eigentlich die richtige Entfernung zwischen den Schwerpunkt und Flügel so genau eingebaut, damit das Ding SUPER stabil fliegt, und richtet sich ganz ganz genau danach, wie man kontrolliert
@@AeroCraftAviation Bist du sicher dass dieses Ding super stabil fliegt? Have you tried it out, on the fields?
Das würde ich aber nie machen! Das ist do leicht, dass weniger als 2-3 Stunden Kilometer Wind würde es bestimmt kaputt machen. Du musst ja nicht vergessen, es ist doch nur 42 gram, so leicht wie sieben 20cent Münzen. Was man meint wann man „Stabil“ sagt, ist nicht das ein Flugzeug gegen dem Wind fliegen kann, sondern, das es sich gut richtet, danach, wie man es kontrolliert, und nicht umkippt beim Abbiegen, und das es ohne ständige Steuerung nicht Komplet abstürzt. Weil es gibt doch manche Flugzeuge die ohne konstant Kontrolle gar nicht fliegen, und diese würde man nennen „UNstabil“, wobei ein Flugzeug was keine ständige Steuerung benötigt um zu fliegen, nennt man „stabil“.
@@AeroCraftAviation As I've said already, I'm no expert. Nonetheless, I just can't really accept that a real-size plane of such design would be stable. I asked you already what the goals of this design were. I'm all ears!
My goal was to create a very stable, lightweight, slow, and power-efficient aircraft, capable of flying with minimal control inputs, for a relaxing flying experience. I wanted to make the airframe as light as I could, which would justify the use of a larger motor, which would use power more efficiently, making possible the use of a small battery, which would overall get good power efficiency and weight. Almost all slow flyers use wings higher than the tail and fuselage, to get the stability I was talking about earlier. Here are some links to videos of aircraft which are stable because of the high wings:
th-cam.com/video/RpxDHjqS1Gs/w-d-xo.html
th-cam.com/video/yaM0k_7fBaM/w-d-xo.html
th-cam.com/video/lZ1vUKcktVk/w-d-xo.html&app=desktop
th-cam.com/video/fxIx4ZBNFaQ/w-d-xo.html&app=desktop
th-cam.com/video/5vGPJM-4Xm8/w-d-xo.html&app=desktop
Good video, and an interesting design.
But....
Easy on the exclamation points.
PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Thanks. Haha, I was just a kid, and I was super into it. Gimme a break. 😅