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If they could measure the Cd and run their smoke wand all over the thing with the video camera running,we'd have a 'good' number for drag,and the smoke would reveal any areas which require additional work.It would be worth a lot.
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Among other thoughts that flitted through the cavity referred to as 'my brain' was this:
One way to make copious amount of smoke is with a chemical reaction. I think they're called fuming agents. If you could mount a SCUBA tank at the stagnation point with a telescoping, rotating arm, it could reach any point within a half circular area at the front of the car. Then you could put in sort a suppository with the chemical and get up to 1500psi of dense smoke, and do you own smoke testing in real life. If it created red or blue smoke it might cause less alarm along your route.