Listening to the audio portion of that video it appears considerable tube ID is shot through the nozzle mid burn and onward. How much of the casing is eroded during the firing? Thanks for releasing the Estes F15 or, 29mm 50F14-4-VBP (ILP method). It has already stimulated some kit sales here. That didn't take long!

Just Jerry

My #1 Estes motor wish is a high thrust D in the E casing. Gain experience for the future high thrust E in the F casing . . .

Here's a blow up of the photo of the motors from MIT/TRF.

Attached Thumbnails