Not sure what orientation all of you are static testing your motors, I done
nozzle up down and horizontal, but that does matter for how much and where slag
accumulates and problems it can cause. If you plan on launching up you should
be static testing your motors in the nozzle down flight orientation. We've had
as much as 4" of slag accumulation testing nozzle up and several burn throughs
on the bottom side of horizontally tested motors.
On Sunday, September 10, 2017 5:28 PM, Mike Smith <smittypwr@xxxxxxxxx>
wrote:
That's true, I could put weight in the nose and get a similar effect.
On Sun, Sep 10, 2017 at 5:17 PM, Steve Peterson <dmarc-noreply@xxxxxxxxxxxxx>
wrote:
On 09/10/2017 04:11 PM, Mike Smith wrote:
I'm aiming for a lot less than 30 seconds burn time. I will be happy if I can
replicate the aerotech E6 motors I use to get long ago. They had an 8 second
burn. but they were AP moonburners. I once had Jerry Irvine (u.s. rockets)
custom make me a dozen E10 motors since I lived nearby. I just miss those slow
lift-offs, that's really what I'm after.
Add a bunch more mass :-) a = F/m
