I remember there was that weighing method to determine the pressure point on
the axis of the rocket drawing. One simply cut out the rocket outline on
cardboard and noted where the figure came in balance on a scale.
But I always wondered how to draw the fin surface in 2D when 3 or 4 or 12
fins were involved (mortar shell). Does one add the surfaces up for a 2 D
representation to measure the pressure point in that case?
jd
