JimJarvis50
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- Jan 17, 2009
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So, let's get back to the LDRS flight. This was the two stager with the stabilization section on top of the sustainer. The sustainer didn't light because the rocket didn't reach the required staging altitude. This was due to coning on the boost (seems to be the theme this year). I put together the video from the flight and it's attached.
The question on this flight is why did the rocket cone? One possibility is that it was too windy for the flight (I should have waited, as the weather got better). Another possibility is that roll control from the top of the rocket may just not work very well on a long rocket. Or, these two factors might have combined to cause the motion of the flight.
I'm planning to try this flight again in a few weeks (Distant Thunder). Motors would be a CTI M3100 (instead of the Gorilla M1665), followed by the Gorilla M745 that didn't light. I need to decide what to do with the control system. I can have it active at launch, as I did on this flight, or I can delay turning it on until after stage separation. The planned flight profile is also attached. Thoughts?
Jim
The question on this flight is why did the rocket cone? One possibility is that it was too windy for the flight (I should have waited, as the weather got better). Another possibility is that roll control from the top of the rocket may just not work very well on a long rocket. Or, these two factors might have combined to cause the motion of the flight.
I'm planning to try this flight again in a few weeks (Distant Thunder). Motors would be a CTI M3100 (instead of the Gorilla M1665), followed by the Gorilla M745 that didn't light. I need to decide what to do with the control system. I can have it active at launch, as I did on this flight, or I can delay turning it on until after stage separation. The planned flight profile is also attached. Thoughts?
Jim