multi- motor calculators
From a few experiments flying control liners with nitro motors, I know that 2 motors on the same plane give you much more performance than one motor with the total displacement of the 2.
I have 4 matched 3536 1000KV brushless motors. Each can put out a little over 450 watts.
I want to build a couple of twins, or a B-17.
How heavy could a plane be in each case, with good flight performance?
I found a program for a Quadcopter, but not a multi plane.
Try WeboCalc. Enter the number of props you want to drive and the other relevant data to calculate the power required to fly a given plane. Use the "Help" command for an extensive tutorial.
There are a lot of variables with multi's Dave but the biggest one is prop diameter.
The small diameter props often needed on multi setups - especially scale military setups - result in less over all thrust than a similarly powered single prop setup.
Still, the old watts/pound rules still apply pretty much. if you can get 100 watts/pound you should have pretty good flight performance. 75 to 80 would probably be more than enough to fly scale with some margin and 150-200 would be a rocket :)
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