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In 1990-91, I ordered several packs of the FSI 18mm motors directly from the company.
I flew them in a variety of different models and did not have any problems with them. I had some of them tested on the AeroTech thrust stand by Dan Meyer. As I recall, the A6 motors were closer to the full n-sec impulse allowed than Estes A8s. The FSI B6 and C6 motors were the same or a little lower performance than the equivalent Estes motors. I still have eight sealed packs in my collection: A6-3 (2), A6-5, B6-0, B6-5, C6-0, C6-3 & C6-5. Bob |
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