Can I use Aerotech or other composite motors in my Estes rockets?
Yes and no. They are the same size. Composite motors have 2 to 3 times the power of comparably size BP motors. Balsa-finned 18mm powered models tend to loose body parts in quantity when launched with a D21 or E25. The ejection charges seem to be hotter, as well (IMHO). The same holds true for Aerotech 24mm motors. Care should be taken before launching a 24mm-based model on an E15, let alone an E30. I have an old MegaSize that I fly on E15-10’s. Works great. The Estes Saturn V flies well on E15’s, too. E30’s tend to shred all but the strongest D models, though. E30’s also tend to relocate motor mounts to someplace OUTSIDE of the rockets, as well. If I plan to use E’s in an Estes model I make it a point to reinforce the motor mount, especially for EM-2060, EM-2070 and EM-5080 mounts. You also want to use an engine block (a 2050 adapter ring works great) in addition to the metal clip. IMO, I would also reinforce fin/body tube joints. Five minute epoxy fillets work great. Generous cyano fi
