Awesome Homemade Scratchbuilt RC Plane

This is a video of me explaining and flying the plane that I built. It's an unusual biplane. It flies excellently. See this plane dropping bombs here:
http://www.youtube.com/watch?v=cm20Kn7MvY4
AND TO SEE HOW I CUT THE WINGS CLICK HERE:
http://www.youtube.com/watch?v=ckxnNRSM3YE
http://www.customrcwings.com/

Category:

Science & Technology

Tags:

• airplane
• biplane
• RC
• slow
• fly
• foam
• wings
• fun
• foamy
• flight
• homemade
• aviation
• hobby
• plane
• scratch
• build
• how
• to
• aircraft
• Styrofoam
• hot
• wire
• cutter
• small
• cool
• first
• test
• electric
• sky
• clouds
• trees
• mountains
• crash
• low
• flying
• buzz
• people
• brushless
• motor
• lipo
• battery
• servo
• ESC
• grayson
• propeller
• radio
• control
• rudder
• elevator
• three
• channel

[WarblesOnALot]

@magna59

@DymamAero G'day Bob...! Thanks for sending this. Very interesting. Um, DynamAero, if the Wings have the Same Section, Plan, Area, & Angle of Incidence, then of course they make the same Lift. Normal practice is to give the Top Wing 1or 2 Degrees more Rigger's Incidence than the Lower. Then you fly on the Top Wing, and when it approaches the Stall, the Lower Wing keeps lifting, the CL moves rearward, and the Nose drops.

[DynamAero]

@WarblesOnALot The two wings probably do produce the same amount of lift, but what I said was they dont produce twice the amount of lift together as one of the wings would alone. They probably only produce about 130% of the lift of a single wing.

Also, it doesnt make sense to say a CL moves. When the forward wing stalls, the AERODYNAMIC CENTER moves rearward and the nose drops.

[ib422000]

I have saved this video and watch it often..your personality and informative narration are impressive1, and the plane is, obviously, a terrific flyer.

Should I just eyeball it and make a similar 'plane, or do you have plans available?

One more little point. Flying any powered aeromodel over and around the public, especially children, is very dangerous, isn't it?

[DynamAero]

@ib422000 Thanks for the nice comment! I don't have plans or the dimensions memorized so eyeballing it is a good choice. Yes, flying around people is usually not a good idea. All the people you see in this video are my relatives. And with a plane this slow, light and in control, I wasn't too worried.

[Genswitch]

@DynamAero

I don't know if you can help me or not, but I am trying to build an RC plane using some old Air Hogs Storm Launcher components. The only thing that is awkward is that instead of having ailerons, it just increases the thrust on one side to turn. Can you recommend any general plane designs?

[DynamAero]

@Genswitch Whatever you do it must be very, very light and perfectly balanced. Those airhogs planes don't have any extra power. I think your best chance of success is probably to make something that looks like the original plane that you took the components from.

[PitBullsBiteHard]

cool

[averyaccordion]

@DynamAero I would put the bottom wing in front and rear wing in back. Also, make the top wing span larger.

When the air travels, it gets a higher pressure below and slightly back, s its actually making a high presure blob on the top of the bottom wing. Put the bottom wing in front, it will be SLIGHTLY less stable, but you will get from about 140% to about 170%

[WarblesOnALot]

@DynamAero Hi, um, I wasn't referring to "2 x V's 1.3 x Lift., Biplane vs Mono.". That's due to High P. under Top-Wing partially cancelling Low P. over the Bottom Wing. CL = (Common)Centre of Lift = "Aerodynamic Centre", is actually the average Centre Of Pressure... For a real giggle, search "1975 Skycraft Scout", or "Aerotowing Rogallos", even "Autodidactic Test Flying". Then, try "Boomerang Aerophysics". Ciao !

[magna59]

Lovely piece of work ...... if you have less dihedra (?) on one set of wings than the other ..... I would percieve one would different lift to the other. As you show, if it does or it does not , it does not matter .... which is the main thing. If your running a small prop fast, are you not getting more churn, than if you run a larger prop near a more applicable speed ? Best wishes, keep up the great work & the good films.

[MySlimdudestyle]

where did u get the moter