Originally Posted by MarkB.

Comrades:

A non-comprehensive list of kits that had the fin unit from Centuri/Estes will include:

Challenger II (Black)
Maniac (Blue)
Eliminator and Eliminator XL (Yellow)

Also, the Centuri M.A.R.S. Project static display had Blue fins (I have one still in the bag)

I too am going through an EnerJet cloning phase. Some vinyl EnerJet decals would be nice . . . .