[AR] Re: elementary things

  • From: qbert@xxxxxxxxxxxxxxx
  • To: arocket@xxxxxxxxxxxxx
  • Date: Tue, 14 Jul 2015 16:33:01 -0600

https://www.apogeerockets.com/education/downloads/Newsletter18.pdf

At 12:40 PM 7/14/2015, you wrote:

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


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