Thanks for all the advice Eric! Good to know there is precedent for something like this. We'll obviously do some testing before implementing anything.
The 775pro is just such a powerful motor for the weight that I think it's worth the trouble to filter and cool it. Given how fine the BP-1 is, would filtration even be possible? I haven't taken the time to look into that yet.
Also, NASA allows fan cooled motors despite the fact that there is virtually no atmosphere on the Moon/Mars. This is because NASA can afford much nicer motors than us
