ORIGINAL: gaRCfield
Something tells me Isaac would know if his cooling methods were not working properly. He's got quite a few of these builds out there and is familiar with his power setups.
The truth of the matter is that we don't know the mass flow of air through the plane, nor the temperature, let alone the Y+, Reynold's number, and subsequent heat transfer coefficients. Most of what we see is trial and error; there are not many people doing detailed 3D modeling of model F3A airplanes.
Thanks Joe; I just wanted to add something i though "good to add". Actually is not a big deal to put some numbers to the cooling here but as you pointed: 1- Trial and error is still valid enough; 2- Isaac has more than enough experience on F3A building.
So; let's go ahead watching his great thread.
Cheers;
G.