FishbonesAir
Elite member
You kinda hit the home run bro. 👍
2025 STOL challenge
- Thread starter Jo's squadron
- Start date
Houndpup Rc
Legendary member
Thanks!
Jo's squadron
Elite member
@Houndpup Rc you officially won!!
congrats!
congrats!
Houndpup Rc
Legendary member
Thanks guys!
Robot_Child
Member
Too bad this is already over… I would of entered my modified FT flier lol
Houndpup Rc
Legendary member
Maybe we can do another one this coming year!
Robot_Child
Member
Yay! I’ll blow you guys out the water with the flier. It is pretty much a helicopter
Houndpup Rc
Legendary member
We shall see😏😁😂
Houndpup Rc
Legendary member
I might do a VTOL plane with a FC...
Robot_Child
Member
Funny you say that… I want to do a tail sitter VTOL version of the FT arrow this coming year. Running rehm flight..
Houndpup Rc
Legendary member
Sounds cool! 👍
Houndpup Rc
Legendary member
If you need a FC, the Speedybee F405 Wing FC is pretty good👍
Houndpup Rc
Legendary member
I wonder what you could do if you added a GPS onboard......
FishbonesAir
Elite member
RULES
Plane needs to be able to carry at least 200g of weight. If your plane is an A or F pack it needs to carry only 100g. (A Gopro is about 220g) worth 10points
Plane needs to be able to land in a 8x20ft landing strip (extra points if it is surrounded by trees). worth 15 points
Plane needs to be able to take off in less that 5ft worth 15 points( two extra points if you land at 4ft, four extra points if you land at 3ft etc).
You need to post a picture of your plane, and pictures of take-off and landing for proof each picture is worth 10 points ( five extra points if it is a video).
Your plane can be one that you already have built and ready to go.
Your plane cannot be a warbird, jet, or any other type of airplane that dose not look or fly like a bush plane normally (normally-meaning the real one or a real one that looks similar).
Here are the contestants so far (Even if it is started you can still join).
@Mr Man,@Houndpup Rc ,@Patriot Rc, @Flying Cherokee @Jo's squadron
Challenge starts on the third of April 2025 and ends on the first of May 2025 (EDIT-ends two weeks later) Winner will be announced one week after the challenge has ended.
Winner will have bragging rights
We ought to have a Flitetest STOL Challenge running at Flitefest 2026, to show DARPA what a bunch of motivated amateurs with mere foam board can do.
Postal contestants could submit via a live feed, if they couldn't make it to Flitefest.
Any interest, before I think about this too much? 🤔
Houndpup Rc
Legendary member
That would be fun!!😀
L Edge
Legendary member
I have a "DARPA SPECIAL STOL" that someone should build. Josh and company?
Transport:
1)P Sripoi design located in RC Group
2Wing moves up from 0 to 45 degrees by servo --changed by pot( I do airflow analysis by force vector)
3) foam strip down wing behind motors for better flow for odd looking elevons (servo controlled)
4) differential thrust by motors
5)gyro mounted on fuselage runs to tail elevator and no control in transmitter at all and is on at all times. Purpose is to keep the fuse angle always constant to ground.
Gyro tries to keep it level to the ground. Pilot uses the rudder(differential motors only- not rudders in back) and odd elevons to fly plane. Result is the plane is very stable in flight.
Concept is that after control movement, wing and fuse always return to 33 degrees(optimum for wind 5-10mph). If wind changes direction or speed, you need to tweek before flight. After altitude gain, pilot returns wing to zero and flies, landing repeats adjusting wing and can tweak on way down.
Purpose of video. Tweeking STOL for stability. Wind is blowing about 25 degrees off my right and with building, produces lots of gusts. (Been here many times)
Goal is to show STOL takeoff in one length of wing(3 ft) , have stable flight and land same way.
Ignore audio and happiness sounds, I started the video with wing angle off the max stability, did the run, tweeked the wing angle better, run , and if you noticed plane's last flight got smoother and finally quit with that one. Goal achieved. If I want shorter takeoff or landing, just go out in higher winds.
Again ,no plans, will help anyone that is going to FF or just cares to build one.
With practice of throttle and rudder control, you can also wind soar, back it up and land near start.
If you are interested in making one, if you step your video, see the gyro, foam strip behind motors, and of course the different elevon. Did you ever envision this shape elevons to make a STOL ? No flaps or leading edge devices at all.
FishbonesAir
Elite member
Not gonna lie, that's pretty sweet!
telnar1236
Master member
What's the airfoil? Seems very stall resistant to be a 30+ degrees with a straight wing at this scale
Jo's squadron
Elite member
Sounds fun! But I would have to be a live feed.
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