>I chose the legacy because it can take D-G engines. Also it has a
>payload bay which I need for some experiments I want to fly. If you
>have any other rockets that you think will work please tell me!
Others have mentioned that the D is too small. Are you aware of the rule
of thumb that says that the average thrust should be at least 5 times the
rocket's weight? In other words, suppose you have a rocket that weighs 1 lb.
You need a motor with 5 lb. average thrust (of course, it's really initial
thrust that's important, and drag matters too - that's why this is a "rule
of thumb", and not a scientifically verified law). As you probably remember,
1 lb. = 4.45 Nt. Your 5 lb. of thrust is 22.25 Nt, and therefore you need an
engine with that avg. thrust. An F25 would be a good choice, but an F11
Similarly, I've got a 36 oz. NCR Archer ready for its first flight.
That's 2.25 lb. It'll need an engine with at least 50 Nt. average thrust
(2.25*5 = 11.25 lb. = 50.0625 Nt.). The NCR F62s will work (barely, though),
while a G80 should be just about right. An F25 would be outright dangerous,
and any decent LSO wouldn't let me fly it.
I think you're going to really like mid-power. I've sent up my Aerotech
Initiator a bunch of times on F62s, F20 Econojets, F25 SUs and E23 and F52
RMS engines. A real thrill on each flight. I'm dying to put the G80 in this
Archer, perhaps on Thanksgiving Day.