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RV7-List Digest: 4 Msgs - 02/25/06

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llsbiii3(at)netzero.net
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Posted: Sun Feb 26, 2006 6:42 am Post subject: RV7-List Digest: 4 Msgs - 02/25/06

I believe the Grummans suffer from a small tail volume.  When ventral and dorsal fins are added the spin charastices improve. 

Sherman Butler



Time: 05:42:53 AM PST US

From: Brian Gawronski <six_rabbits(at)yahoo.com>

Subject: RE Dangerous ER fuel tanks 

 The two-place Grumman American AA-1 uses its

 full-length tubular main spar as the fuel tank. 

 Because of this, it is placarded against spins, and

 has been involved in numerous spin accidents.  NASA

 has used it as a spin research plane (with a

 spin-recovery chute mounted at the tail!)

 

 	  Quote: 	
		   >were potentially dangerous.

 >He said that during spin, the fuel would be sloshed

 to >the outboard end of the

 >fueltank thus making it difficult or impossible to

 >revover from a spin.

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