The 'daydreamers' thread...post your craziest designs and concepts here

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delta

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And then there's the ring wing and the...
 

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cheapracer

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It's not the quality of the video that I question.. It's also physics
You mean like the energy it just expended without any means of support for that energy consumption. Some people call it a fuel tank.
 

gtae07

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Some that have kicked around in my head:

airplane concepts.jpg

1. is a hybrid super-STOL. Imagine something the size of a 182 or Bearhawk, but with big barn-door flaps. Add an electric motor and folding prop on each wing, with enough battery for about 2-3 minutes of full-power operation. Use the electrics for takeoff and landing, or in an engine-out. Recharge the batteries during cruise or on the ground.

2. is a blended-wing-ish 2 or 4-seater with a V-tail. Just looks cool.

3. is a four-seater based on the Questair Venture, which I've always liked the looks of. I'd picture this being composite with more conventional landing gear, and maybe even a four-cylinder engine vs. six.

4. is a podded sailplane with the wing and tail boom assembly pylon-mounted. For self-launch there would be removable pods on the wing with an R/C electric motor and battery pack, and folding prop.

5. is the same thing but in a more Goat-ish airframe. This may one day actually get built if I ever get off my butt and start designing.

6. is a composite radial-engined four-seater inspired by the Spartan Executive.
 

Topaz

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... 5. is the same thing but in a more Goat-ish airframe. This may one day actually get built if I ever get off my butt and start designing.
I have this exact sketch in one of my notebooks. Exactly, right down to the flat-wrap, swept-forward pilot pod. Apparently we were thinking alike those days! :grin:

Here are a few of mine.

front-quarter-perspective.jpg
front-quarter-ISO-inboard.jpg
DS36 ISO.jpg
DS43.2.7.jpg

Many, many sketches of other designs, but I'd need to scan those first. Perhaps another time.
 

Pops

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Here's one I actually built:
Forward swept plank with strakes and thrust vectoring yaw. I wasn't able to get the CG far forward enough and it crashed early on because of the pitch sensitivity. But daaaaaaaaaaaaaaaaaaang, the thing could go through 3 turns/second in a flat spin on command. Anyone who does that in full scale gets 100,000 Internet points.
Back in the mid- 1970's, I used to complete in the RC Fun-Fly event. One of the task was start from a standing start and see how many turns in a spin in 30 seconds. I had a model of my design the had a 40" wing span that weighed 3 pounds, powered with a SuperTiger .61 racing engine on 40% nitro. I ask the timer to start counting the seconds after takeoff at 8 seconds. I would point it straight up and let go, it would accelerate going straight up and go out of sight in 9/10 seconds. I would put it in a flat spin after it went out of sight, so when the judges could see it, it was spinning. Power up in a spin to about 1/3 throttle and it would spin like a top. Had to do 60+ turns to start to be competitive. Another task with the same airplane in the same flight, low high speed pass in front of the judges at 25' than how many rolls you could do in 30 seconds, again had to do 60+ rolls in 30 seconds to be competitive. Then a spot landing with the same hot airplane. No dual rates back then.

Dan
 

RPM314

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Back in the mid- 1970's, I used to complete in the RC Fun-Fly event. One of the task was start from a standing start and see how many turns in a spin in 30 seconds. I had a model of my design the had a 40" wing span that weighed 3 pounds, powered with a SuperTiger .61 racing engine on 40% nitro. I ask the timer to start counting the seconds after takeoff at 8 seconds. I would point it straight up and let go, it would accelerate going straight up and go out of sight in 9/10 seconds. I would put it in a flat spin after it went out of sight, so when the judges could see it, it was spinning. Power up in a spin to about 1/3 throttle and it would spin like a top. Had to do 60+ turns to start to be competitive. Another task with the same airplane in the same flight, low high speed pass in front of the judges at 25' than how many rolls you could do in 30 seconds, again had to do 60+ rolls in 30 seconds to be competitive. Then a spot landing with the same hot airplane. No dual rates back then.

Dan
Impressive. My 3 rev/sec is just an estimate, I never timed it. All I know is that it looked more like it was autorotating than it was an actual plane in a spin. I'll have to rebuild it so we can compete.

We had an event like that at my field a couple years back, but with loops in a minute and rolls in a minute. Fun stuff, but there's always that one plane that blows everyone else out of the water.
 

cluttonfred

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I would also love to see a serious attempt at an asymmetrical aircraft, something simple along the lines of a Moni motorglider with a full glider canopy (no engine there) and the engine moved out to the wing. It would have great visibility and attract attention at every airport.
 

Victor Bravo

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Vought V-173'ish disc with one central engine, a belt driving one spanwise shaft, connected to two outboard propellers through simple 90 degree gearboxes.

A foam and glass Rutan style ME-163 using a peroxide "rocket" or the new throttle-able solid fuel rocket technology. Airshow crowds would give me a decent living to see that.

A foam and glass ME-262 with Williams jets... the tailwheel prototype version !

A VTOL strap-on glider. About the shape of the Jet-Man wing but longer span to actually glide, takeoff vertically using peroxide "rocket, climb vertically to 5000-8000 feet, then glide around for a few minutes. Didn't sort out the landing gear yet :)

VTOL Arrow-Copter (the childhood toy), straight up on peroxide or solid fuel, blades open at apogee and you auto-rotate back down.
 

Pops

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Impressive. My 3 rev/sec is just an estimate, I never timed it. All I know is that it looked more like it was autorotating than it was an actual plane in a spin. I'll have to rebuild it so we can compete.

We had an event like that at my field a couple years back, but with loops in a minute and rolls in a minute. Fun stuff, but there's always that one plane that blows everyone else out of the water.
There was national competition in this Fun-Fly event in the early 70's. I took 9th at the national event in 1973. I practiced about 20 hrs a week, mixed my fuel 25 gallon at a time. Also flew in open Pylon racing. No limit on engine size. Lots of fun.

Dan
 

Kyle Boatright

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Vought V-173'ish disc with one central engine, a belt driving one spanwise shaft, connected to two outboard propellers through simple 90 degree gearboxes.

A foam and glass Rutan style ME-163 using a peroxide "rocket" or the new throttle-able solid fuel rocket technology. Airshow crowds would give me a decent living to see that.

A foam and glass ME-262 with Williams jets... the tailwheel prototype version !

A VTOL strap-on glider. About the shape of the Jet-Man wing but longer span to actually glide, takeoff vertically using peroxide "rocket, climb vertically to 5000-8000 feet, then glide around for a few minutes. Didn't sort out the landing gear yet :)

VTOL Arrow-Copter (the childhood toy), straight up on peroxide or solid fuel, blades open at apogee and you auto-rotate back down.
I like your ideas. Be careful with the Me-262 taildragger. With a little asymmetric thrust and no propwash over the tail, that thing could probably take you for Mr. Toad's wild ride in a heartbeat!
 

Tiger Tim

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Moldless composite de Havilland Comet (the racer, not the airliner), powered by those Czech inline sixes and generally smoothed over with things like clamshell doors for the landing gear and all control balance weights moved inside their respective controls. Would be a show stopper everywhere you went and would probably have some pretty long legs.

Or, if you'd prefer to carry a couple more people, same concept but a full scale Mosquito with a pair of PT-6s or similar. Basically taking the idea of the Grand 51 to the next level.

I like the idea of a composite Me-262 as well, but as mentioned before here somewhere it would be interesting to scale it down a bit and have a turbine power unit in the nose to power brushless electric ducted fans under the wings.

Oh, and I've thought of the rocket Me-163 before for air shows, too, I just picture it with a hybrid rocket for power so that it can be throttled. Imagine being at an airshow as a formation of B-17s cruises overhead when suddenly you hear this roaring hiss as a little tailless fighter points straight up on a column of smoke to go catch them...
 

delta

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You should see the ones that got away...
 

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