Did it fly???
I made this!
the answer is...well....kind of.
( , Sun 26 Sep 2021, 21:48, Share, Reply)
the answer is...well....kind of.
( , Sun 26 Sep 2021, 21:48, Share, Reply)
Tail heavy is one way to express it.
The centre of mass needs to be at the tip of the nose to compensate for the centre of lift (really the centre of drag in this case) being positioned so far forward. I guess the engines on the real thing weighed a tonne.
I think for this to work you need to increase the thrust to weight ratio enough that it could take off vertically. Maybe even using gimbling rotors, if they are a thing.
In lieu of a wind tunnel, a thread, attached to a pin stuck to the ceiling, attached to the aircraft (I guess at its centre of mass), would let you do a more controlled flight test, albeit round and round in circles.
( , Sun 26 Sep 2021, 22:46, Share, Reply)
The centre of mass needs to be at the tip of the nose to compensate for the centre of lift (really the centre of drag in this case) being positioned so far forward. I guess the engines on the real thing weighed a tonne.
I think for this to work you need to increase the thrust to weight ratio enough that it could take off vertically. Maybe even using gimbling rotors, if they are a thing.
In lieu of a wind tunnel, a thread, attached to a pin stuck to the ceiling, attached to the aircraft (I guess at its centre of mass), would let you do a more controlled flight test, albeit round and round in circles.
( , Sun 26 Sep 2021, 22:46, Share, Reply)
Getting a lot of great advice right now, thank you !
i will be starting the 1/24 build next week, this one will have brushless 6500kv motors and enough space to put all the electronics and battery in the nose. Servos for ailerons, flaps etc will easily fit into the wings.
( , Sun 26 Sep 2021, 23:02, Share, Reply)
i will be starting the 1/24 build next week, this one will have brushless 6500kv motors and enough space to put all the electronics and battery in the nose. Servos for ailerons, flaps etc will easily fit into the wings.
( , Sun 26 Sep 2021, 23:02, Share, Reply)
The motors you are planning to use are far to high kv for a winged aeroplane
(Too high, FFS) They have to go very fast to generate power (e.g. 11.1 v x 6500 = 72,000 rpm), you need lower kv with a wider diameter if you are going brushless, so they generate the torque needed to effectively drive some suitably matched props. High kv are for small quadcopters.
( , Mon 27 Sep 2021, 11:03, Share, Reply)
(Too high, FFS) They have to go very fast to generate power (e.g. 11.1 v x 6500 = 72,000 rpm), you need lower kv with a wider diameter if you are going brushless, so they generate the torque needed to effectively drive some suitably matched props. High kv are for small quadcopters.
( , Mon 27 Sep 2021, 11:03, Share, Reply)
I will have to do more research!
and get "more power, make brick fly" out of my head! :)
( , Mon 27 Sep 2021, 13:21, Share, Reply)
and get "more power, make brick fly" out of my head! :)
( , Mon 27 Sep 2021, 13:21, Share, Reply)
I think there used to be a quote related to cars
along the lines of "Power sells, torque wins".
( , Mon 27 Sep 2021, 17:32, Share, Reply)
along the lines of "Power sells, torque wins".
( , Mon 27 Sep 2021, 17:32, Share, Reply)
As long as the power is expressed as thrust and not as twisting the plane to pieces
'more power, make brick fly' is about right. The way I see it you're dragging a plane shaped brick behind your engines. I'm not sure how useful the flaps could be, especially at slow speeds, hence my preference for thrust vectoring.
( , Mon 27 Sep 2021, 19:18, Share, Reply)
'more power, make brick fly' is about right. The way I see it you're dragging a plane shaped brick behind your engines. I'm not sure how useful the flaps could be, especially at slow speeds, hence my preference for thrust vectoring.
( , Mon 27 Sep 2021, 19:18, Share, Reply)
That was a lot of fun.
As is being said above, I always err on the side of being nose heavy. You're much more likely to be able to recover a plane going nose down at 45 degrees over one that's just done a backflip.
But then I only know this from Kerbal, so real-world applications may vary.
( , Mon 27 Sep 2021, 14:10, Share, Reply)
As is being said above, I always err on the side of being nose heavy. You're much more likely to be able to recover a plane going nose down at 45 degrees over one that's just done a backflip.
But then I only know this from Kerbal, so real-world applications may vary.
( , Mon 27 Sep 2021, 14:10, Share, Reply)
A Kerbal strength reaction wheel in the nose would fix everything.
( , Mon 27 Sep 2021, 19:19, Share, Reply)
( , Mon 27 Sep 2021, 19:19, Share, Reply)