What’s the point of flying down a steep drop off in a roller coaster if you can’t feel the wind in your face? Here’s how I’m taking care of that. Solid state relay controlled by the bullduino to run a fan on command. I’ve got one of those squirrel-cage carpet drying fans, I think that’s what I’ll use.
BTW- be careful if you use this mounting method. It isn’t exactly up to code.