I've encountered a problem with the CG updating code. It uses ShiftCG to move the CG, and this doesn't update the exhaust stream positions, which is a problem for the SRB exhaust. The only simple solution seems to be to remove the SRB particle streams entirely.
I've had good results using a fixed CG, but moving the CG at launch to a different position. Using the ET Attach Test scenario, the shuttle winds up at a velocity of 1310 m/s and an altitude of 44 km at SRB sep (it should be at 1270 m/s and 46 km). This should be close enough.
I've had good results using a fixed CG, but moving the CG at launch to a different position. Using the ET Attach Test scenario, the shuttle winds up at a velocity of 1310 m/s and an altitude of 44 km at SRB sep (it should be at 1270 m/s and 46 km). This should be close enough.
