Help! Fastest Airframe for 6 inch prop?!
Mr Man
Mr SPEED!
Help here?
Help! - I’ve got a huge motor and am looking for some speeeeeeeed!
I’ve got a big outrunner, Looking for an insane amount of speed, any help is appreciated!
forum.flitetest.com
Houndpup Rc
Legendary member
I am going to put a Emax 2306, 2450kv with 50a esc on a mighty mini.... should go pretty fast with 1600g of thrust!
Mr Man
Mr SPEED!
Tiny trainer, Mustang, speedster, or Corsair. In my opinion these are the best options.
Houndpup Rc
Legendary member
For a fast air frame? it will have about 400% thrust with those options.
Mr Man
Mr SPEED!
Tiny trainer mod by Tim Simmons
Houndpup Rc
Legendary member
Okay thanks!
telnar1236
Elite member
In terms of getting the fastest plane for the power, you want to wrap everything as tightly as possible in the fuselage (while keeping it streamlined of course) and build a plane with a thin symmetrical or almost symmetrical airfoil (as others have mentioned). A V-tail will reduce drag at the top end of the speed range, but to be honest, a conventional tail is almost as good. As others have mentioned, pylon racer like designs are probably the best. Something like the FT mini mustang would also be a good candidate to modify for very high speeds. A goblin could be fast, but it will be limited by its somewhat chunky fuselage with hard angles and the flying plank design where a more conventional plan form can be more efficient. Something I haven't really seen mentioned is the importance of streamlining the back of the plane. If you can bevel the trailing edges and make sure you don't have any flat surfaces on the back of the plane, you will cut a bunch of drag.
If you're trying to cram as much power as you can into as small an airframe as possible, delta wings are also actually pretty good. It's easier to build a fast delta since the wings are stronger for their area and they have a very wide range of possible lift coefficients with a very low lift coefficient at low angles of attack. A delta will never be as fast as a well designed plane with a more conventional layout (at least at subsonic speeds) but it can be a simpler thing to build.
If you're trying to cram as much power as you can into as small an airframe as possible, delta wings are also actually pretty good. It's easier to build a fast delta since the wings are stronger for their area and they have a very wide range of possible lift coefficients with a very low lift coefficient at low angles of attack. A delta will never be as fast as a well designed plane with a more conventional layout (at least at subsonic speeds) but it can be a simpler thing to build.
Houndpup Rc
Legendary member
Yeah I was going to say the Mighty Mini Arrow would probably be a good speed option.
Houndpup Rc
Legendary member
Houndpup Rc
Legendary member
Nerdnics Airframes are very fast as well!
Mr Man
Mr SPEED!
I’ve been keeping my eye on those for sure!
Houndpup Rc
Legendary member
Make sure to use the recommended spar material. Don't ask me how I know....lol
Mr Man
Mr SPEED!
Broken before it hit the ground.😅
Houndpup Rc
Legendary member
On first flight
Houndpup Rc
Legendary member
The baby baron could possibly be a very fast option. Might have to fly pretty fast to get enough lift.
Houndpup Rc
Legendary member
Flew a bloody baron once with a GoPro and a 2200mah 4s and I had to fly pretty fast and landing was kinda tricky. Also don’t forget at high speeds your control rods can start to flex.
Mr Man
Mr SPEED!
Yup, a friend has a ft22 and they flex at 20mph (roughly)
