My son launched his Estes PSII-EX Trajector for the first time on Saturday. I built it for him. I did not sim it or test it beforehand. Usually with Estes products, if you build it to spec and use the recommended motors, it is stable.
His skywrote. Broke off a fin on landing. Obviously the F15-5 was not a good motor choice. The E16 has a higher peak thrust, and that combined with a longer rail, may solve the problem.
But I was wondering if there are other motors people are using successfully. I built it with the forward motor block in place, because I assumed we would just use the F15. So any motor recommendation would need to fit into the 114mm long MMT.
Thanks.
His skywrote. Broke off a fin on landing. Obviously the F15-5 was not a good motor choice. The E16 has a higher peak thrust, and that combined with a longer rail, may solve the problem.
But I was wondering if there are other motors people are using successfully. I built it with the forward motor block in place, because I assumed we would just use the F15. So any motor recommendation would need to fit into the 114mm long MMT.
Thanks.