Re: question for Don S.; weight vs air loads

From: Fred or Judy Rash <frash_at_chartertn.net>
Date: Thu, 20 Aug 2009 18:52:08 -0400

Mark,

Someone needs to start this discussion, so I'll bite the hook. My guess is all the weight except the wing.

Fred Rash


From: f1diddler
Sent: Thursday, August 20, 2009 6:48 PM
To: Indoor_Construction_at_yahoogroups.com
Subject: [Indoor_Construction] question for Don S.; weight vs air loads


  
When an indoor FF model is flying, what percent of a model's static weight do the wingposts feel? If I'm designing, for example, a pair of wingposts for a PP bipe, and I hang 5 gram weight on the end of a pair of posts (to mimic 2.7g rubber + 2.3 grams of parts below posts, etc.) is that anything close to loads wingposts feel in flight? Obviously wingposts must withstand up force (wing lift) side force (prop torque vs wing) forward force (prop thrust) back force (whole model drag) but how much *down* force due to weight of whole model?
Mark F1diddler






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Received on Thu Aug 20 2009 - 15:52:27 CEST