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.
ballisticlocomotive 
[…] Of course, watching a 1st-person shot of a roller coaster just isn’t the same experience without the wind blowing through your hair. To simulate this aspect of a roller coaster ride, so the Ballistic Locomotive team connected a relay to the bullduino and connected a carpet drying fan. […]