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Floppy Hobbies
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Добавлен 4 янв 2023
Here at Floppy Hobbies we try a lot of things, and it rarely goes to plan.
Flying an Experiment STOL Concept Plane!
In this video, I build and fly a crazy STOL plane design! It uses a combination of slotted flaps and spoilers to achieve super slow speed flight and crazy steep descents!
We also had a meetup with @TailHeavyProductions to test out my plane against some steep competition. We had a lot of fun making this video, so enjoy!
We also had a meetup with @TailHeavyProductions to test out my plane against some steep competition. We had a lot of fun making this video, so enjoy!
Просмотров: 121 599
Видео
1/20/2024 FPV Shenanigans
Просмотров 15410 месяцев назад
Quick edit of a fun day of flying with friends at the field. First half is formation with the fpv on my spitfire, second half is screwing around with my Mobula 6. Cheers!
Tiny Whoop Montage - Gas Gas Gas
Просмотров 104Год назад
I bought a New Bee Tiny Whoop a couple of weeks ago, and it's been a blast to careen around the house at irresponsible speeds. Enjoy!
Flying a Homemade RC STOL Plane
Просмотров 1,3 тыс.Год назад
In this video, I fly a DIY plane that I like just as much as my store-bought planes. After lessons learned building other planes, I combined everything I knew into one plane and I was quite pleased with the result. Thanks for watching! STL's for mounting system and tail skid: www.thingiverse.com/thing:5934924 Unfortunately, the 2d plans for the aircraft were lost in a computer move a while back...
You basically made a DLC (direct lift control) like in the F14
The Feiseler (sp?) Storch is a great go by for the ultimate STOL. Just some observations, I think leading endge slats are an important marriage with the flaps. Also, the empennage has a great scale look, but on most STOL planes are a little oversized. Some even have an onverted airfoil for greater authority. Finally, this is my thing with RC tail feathers in general, and that is that they look nice at scale, but because of the way Reynolds numbers dont apply well in small aircraft Inthink they need to be 20-25% bigger than scale to provide the stability needed. Great job, tho! Really love the onnovation of the flaps, especially on a foam wing. Is that Marymoore field, by chance?
Looks a lot like Mike Patey's design.
it's the reynolds playing here...
Hmmmmm ;)
Just a tip , I am getting sea sick with wavey video , and added noise , makes it only watchable with sound off.
You goofballs are great! I enjoyed that a lot! I still think the plane you recently made out of foam with the cool flaps and spoilers is the bomb! Glad I found your channel you guys rock 🪨 🎉
What a great flying plane with really cool flight characteristics 🎊 🎉🎉!! Seriously it's very cool. I'd love to build that myself. You did a great job! I think I'd hand toss it an belly land it. It's a good plane to 3D fly!
I want to have one of this :D
0:30 thats KSP music. Im playing KSP while watching this 😂
That's a cool concept.. it is an argument for the tricycle gear as per full size zenith stol.. Maybe slots on the leading edge too, to keep the wing flying at the higher aoa?!
The gap doesn't "energize the flaps". It allows laminar airflow over the top surface so the wing doesn't stall at high attack angles. If the airflow over the top surface delaminates from the wing, a turbulent vacuum is created and the stall happens. Look it up on NASA.gov
Vab music makes the build hit
Loved the hand grab. Lol Edit to add: you should make another vid like this with YT Venjent’s drum and bass music. I’m stoked about FPV after flying small heli’s and drones. Have a Crux35 coming for Christmas.
Super sick! What program did you use to design the fuselage drawings?
Are you cutting dollar tree foam board with a glow forge, and if so what model? Also, what software are you using to model, and do you have recommendations?
You have a sub from me!
It’s happy (when tail wiggles 😂)
Okay That printer sounds like an jet engine 😄
The buffeting tail on the 79 plane during slow flight is funny
Beautifully done. I had always wondered why I never see spoilerons and full flaps in STOL aircraft
The old man nailed it........
Most of the lift does NOT come from air going over the top of the wing. Bernoulli is doing a lot less than Newton with respect to lift.
I would invite you to look at a type of diagram called an airfoil pressure plot. See how the pressure difference between the top of the wing and the bottom of the wing is almost entirely formed because of the top of the wing having very low pressure? That’s why obstructing the top of the wing with a spoiler works so well
@@floppyhobbies I'll take a look but symmetrical airfoils, paper airplanes and inverted flight...
@@JustPlaneSilly I'm not sure you understood. The pressure distribution isn't that way because of the airfoil shape, that's just how air is. On flat plate airfoils (paper airplanes), or inverted airfoils, they are just less efficient, but they're still getting the majority of their lift from the low pressure on the current upper surface, not high pressure on the bottom.
@@floppyhobbies You might be right but I don't think I can make my brain agree. If I hold my hand out the car window, the pressure on the top of my hand is way lower but it has nothing to do with anything other than Newton creating much higher pressure on the bottom of my hand.
Reminds me of the mitsubishi MU-2 a turboprop twin that uses full length flaps to allow it to land on shorter runways with a higher wing loading, and spoilers for roll.
What is the stall speed on this beauty?
planning to do spoilerons on my first build and slotted flaps.I thought no one did that in rc planes before.till i watched this.anyway,great credits!and i still need to build myn.of course,its not stol...no reverse thrust,and its tricycle gear.so dont worry,im not stealing your design!
KSP music made my day!
Weaponised something or another! Impressive
Nice KSP music
How to build and fly a crazy STOL plane! Great!
Building an airliner wing for your model ? 😊 Airliners control surface are tied together and ce central control system dispatches according to flight envelope, it' s almost impossible to achieve good control without a flight controller tuned for your plane, this also include softwares support for your configuration and/or a really smart TX. Also you should never turn off the engine when slowing down the propeller acts like an air brake ! It very noticeable 😆. You have openTx add some mix to limit engine rpm when airborne ( flight mode or specific input ) the spoilers should never be available in normal flight mode, just take off/ landing, allowing you to smooth transition between modes with delays or specific curves (difficult)
Very beautiful wing, and it flies like a champ 👍
Very cool build. Solid aerodynamics. Wishing you all the best!
looks a bit Tail heavy to me 😉😉
*hears music *looks at the task bar *ksp isn't running *dissapointment
0146 servos do NOT go at the tail.!!! UNLESS the model has enough mass that having Excess mass at the tail has minimal affect on the model's dom. distribution of mass. 0255 length of the aft cabin is excessive. thus, the distance between the wing and stabs is a bit excessive. proportion (comparison) of wingspan to fuselage length is a bit abnormal. 0450 AND more drag.! 0453 nope. some things Don't work as expected when they are made tiny. 0508 THAT is bassackwards from what actually happens. lift comes from positive aoa/aoi in a chord line. lift is a product of newtonian action/reaction. air is deflected downwards and a wing is pushed upwards. want proof, look at cheapo (grocery store) balsa airplane. spoilers make lots of DRAG (and turbulence) and act as air-brakes. these spoilers are gonna make a HUGE amount of drag because of the huge 'channel' that is formed behind them. 0603 heavy wing raises the location of the model's c-m. center of mass cg should be located at thirty percent of chord; or a bit forward-of thirty. the span of the horiz-stab should be equal to thirty percent of the wingspan. d
Oh hey, it’s you again. Glad you like my videos!
Looks like PZL-104 Wilga 👍
any chance to have details on the construction of the m79? tks
AWESOME!!!!!!
Add some slats that will help alot
Huh, the rc clubs in au tend to have holes to slot in metal guides to allow protected power ups.
I'm curious as to what cad process you use. Specifically what software and how to go from 3d model to layout for the laser cutter. Or do you keep the geometry relatively simple and simply sketch it out in 2d with a lot of mindfulness?
I use Inkscape to design the airplane. I do not go from 3d to 2d, instead I design in 2d. My process essentially looks like getting a top profile, side profile, and cross sectional views of the fuselage at different points, and then using some simple math to make the transitions between them. I remember when I was first starting I had really wished there was a video explaining how to design an airplane like flite test. Maybe I'll make a video like that soon!
I wish I had such a vibrant community in my town
I wish i could build stuff like this. Maybe one day ❤
It's easier than it looks I think! Just keep at it and you'll get there eventually
It looks a bit like a PZL-104 Wilga aircraft :) And wing mechanisation like Draco, The most badass monster aircraft. :)
I think you won the competition actually, because your opponent uses more the propeller than the wings to stay in the air. Someone even says "Do airplane mode." when he does half helicopter mode. But your airplane can do helicopter mode even better, as we see at 12:31. So in helicopter mode your plane does actually fly slower than the other one. And also if both planes would do pure airplane mode I guess. Helicopter-mode is considered cheating imho. So why not trying to fly slow in pure glider mode without the motor spoiling the result?
That's actually a really good idea for testing slow flight, the next time both those airplanes are out at the field I might try that. I'll be sure to reply with the result here if I do!
"perfectly balanced, as all things should be." Spiffing Brit reference there? Nice
isnt thanos the bigger influence ?
I like your thinking. 👍👌🤓
excellent work, for great result! one question, what is the watch you wear? I am curious
It is a Casio DBC611-1D
@@floppyhobbies Thank you Sir.
Cessna Caravan and the Mitsubishi MU2 do the same