I need to test a model rocket which will have average airspeeds around 200 mph. I am hoping to construct a plexiglass box about 9 feet long, 3 feet wide and 3 feet tall. For these dimensions and airspeed requirements it looks like I'd need a 160000 cfm blower. Is this something I can feasibly obtain? This is supposed to demonstrate a model rocket roll control system, which will be my senior design project. Maybe I should look into a smaller rocket, eh? Sorry, I'm not an ME so this might be a dumb question.