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I'm working on an upscale of the Estes Goblin, and I've got a PML HAMR Motor Retainer... Somewhere in here. Problem is I can't find it for now.
I know that it only needs 3/8" of exposed motor tube to attach to. So, that's not a problem. What I don't know is how much does it add to the length of the rocket (with and without motor installed). I'm hoping to be able to have a reloadable motor casing installed (forget about the nozzle for now) and still allow the rocket to sit on all four fins.
Thanks!
Jim
I know that it only needs 3/8" of exposed motor tube to attach to. So, that's not a problem. What I don't know is how much does it add to the length of the rocket (with and without motor installed). I'm hoping to be able to have a reloadable motor casing installed (forget about the nozzle for now) and still allow the rocket to sit on all four fins.
Thanks!
Jim