F30-6FJ - Aerotech Single Use Motor 24 mm
Black Max single-use F motors with a 6-second delay. Having the same size, it can be an excellent replacement of Estes "E" motors that are not available in Europe.
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Blue Thunder F motors with a 6-second delay.
These F engines were made by Aerotech to be used in the Estes PRO series rockets that use Estes E9 and E12 24 mm engines, giving a lot more power. Estes "E" engines are not available in Europe so these F engines, which have the same dimensions, are ideal if you have an Estes PRO rocket but of course, you can use them in any model with a 24 mm motor mount of the right length.
Black Max propellant produces a black smoke with almost no flame, it ignites more easily and has an higher thrust than Black Jack.