The reason booster motors have a zero-delay is to eliminate coasting time at staging... all the other forces acting on a rocket become more "forceful"Originally posted by powderburner
Are you sure you can't just use a regular motor-to-motor setup? Are you trying to get some sort of optimum coasting/delay between stages?
By asking my qstn, I was not advocating that any sort of interstage delay system be used. I was trying to figure out why Stewart would not want to use the regular staging system of direct ignition. It is simple, cheap, and quite reliable.Originally posted by graylensman
The reason booster motors have a zero-delay is to eliminate coasting time at staging... all the other forces acting on a rocket become more "forceful"when there's no thrust to counter them. So you run the risk of the model arcing over before staging if its heavy at the very least.
Whilst keeping the rocket pointed in the right direction when it stages (ie straight up) is extremely important there is another fundamental reason why boosters have zero delay. In order to attain maximum height you want to transfer the maximum momentum to the upper stage/s when they are lit.Originally posted by graylensman
The reason booster motors have a zero-delay is to eliminate coasting time at staging... all the other forces acting on a rocket become more "forceful"when there's no thrust to counter them. So you run the risk of the model arcing over before staging if its heavy at the very least.