We should make an Airplane speed calculator for the tools section!

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I think it would be awesome as I a currently building a plane. I'll make a build thread about it soon!

There's some pretty sophisticated RC plane calculators out there - https://rcplanes.online/calc_motor.htm comes to mind, or for even more inputs, like wing area & wing loading: https://www.ecalc.ch/motorcalc.php

What I wouldn't mind is a setup "optimizer", where I enter my current setup and it points out changes that would improve one trait or another. Like, one of my planes shipped with a 1400kv motor and an 8x6 prop, but the prop calculator indicates that a 7x5 will produce more static thrust with lower peak amps, better all-around for me, or it could show me that a 1000kv motor would drive the 8x6 more efficiently. As it is, they just provide final values and leave it to you to try to find better combinations.

The issue is that there are so many factors affecting a plane's optimization. You can estimate a car's top speed by multiplying out the voltage, motor kv & gear ratios, but planes have a much more "analog" relationship between their flying speed and power.

I think plane speed is best determined empirically with measuring equipment, you'll have dozens of factor affecting theoretical speed, to the point that a calculator will be either too complicated to be useful as a tool, or too simplified to provide meaningful insight.
 
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