I don't know how I manage to***up entering the masses for fin sets
every time I sim a new rocket in RockSim, but I somehow manage to do
it. I know that on the component/construction screen, it says "fin
set", which certainly implies that the mass of the entire fin set
should be entered, but doesn't it seem more logical to enter the mass
of only one fin and let RS do the math for the whole fin set? It
would be nice if Apogee would at least put a parenthetical note next
to the fin set saying that the fin-set mass is entered for the entire
fin set, even though the fin dimensions are entered for only one fin.
Well, anyway, I was entering my final, actual component masses into RS
for my new two new builds for this weekend, when I caught the error.
Man, was it ever a big error! It gave me more static margin on my big
canard'd Sempre Fi, but it now requires a motor with an average thrust
greater than ~150 N to get it off the 8-foot rail with a pretty good
velocity (~30mph / 44 fps).
Does anyone else have trouble remembering how to enter fin masses in
RockSim, or am I the only dork who does?
NAR 78629, Level 2