rharshberger
Well-Known Member
IIRC the one I mentioned earlier about the BSD Thor was an undrilled delay.
Were the EZ reloads 'grandfathered' into certification, or was each EZ reload TMT/CAR tested before a new certification granted?
TMT sent Aerotech a letter granting certification to the 38mm RMS EZ closure in any 38mm reload. It does not describe what tests they performed.
NFPA 1125 requires testing of a minimum of three motors if they have user adjustable delays. One at maximum, one at minimum, and one at an intermediate time. There is no evidence available indicating that this testing was ever performed for the RMS-EZ configuration in any motor.
I should also note that in spite of my making a fuss about it last year the RMS-EZ reloads have not yet appeared in the NAR combined list. While you will find "J350W-S,M,L" (in two core sizes) you will not find a "J350W-14A".
So, without an on site dealer with delay assembly parts, what is the best way to prevent these failures till this get sorted out? Would the end burner style forward closure be the best way to approach it?
I don't understand why AT is sending out the delay kits. Are they saying they know the EZ systems has big problems and will top making them? That is the way it looks to me.
The RMS-EZ claims yet another rocket. Hoping your rocket was not damaged too much.
RMS-EZ - makes flying more exciting, do you have a bad one or not?
RMS-EZ - eliminates user error in assembly of the delay components - we do that for you.
RMS-EZ- saves you 2-3 minutes assembly of the delay components - so you can spend hours on repairing your rocket, if repairable.
RMS-EZ - replaces the boring, reliable, RMS+
I am kind of puzzled by the cause of these failures. In the standard RMS+ configuration the delay grain is pressed into the delay O ring and front seal gasket (against the front of the closure). In the EZ setup is the glue the only thing holding the delay grain in place (i.e. is there now no front wall of the closure for the O ring to seal against)?
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