Hey Jim,
Well its a pretty esoteric deal, but basically you line the plane up on the runway, turn on the smoke and hit the gas. If neither you or your spotter can see the jet as it rotates then it is officially a "Smoke Monster". If you reacquire the plane before you hit something you get Bonus Monster Points.
Just FYI, the Green and White Comp Arf Viper at RT66 was mine. Between the Viper and Little Boomer we managed to go through over 5 gallons of smoke the meet.
Ken West