Mailing List flyrotary@lancaironline.net Message #24460
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] RV-3 SP babble was Re: test stands for HP measurement
Date: Fri, 24 Jun 2005 18:32:44 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Unsure of the RV3 weight - but that's my thinking of the Vision with single rotor.
 
Hi George,
 
The weight is easy.  Gross is alleged to be 1100 lbs, but that was before Van got realistic :-)   My empty weight with the 13B is about 850 lbs, so I can easily make the 1320 limit.  Stall speed is supposed to be 51 mph, and the limit is 51.8 mph (45 kts).  Believe it or not (choose carefully <g>) my stall speed is exactly 51 mph :-) 
 
The catch is speed.  We have a 138 mph speed limit, and the RV-3 will likely top that with anything that will get it off the ground.  There's a bit of fuzziness in the rules though, and I think it's the speed at max continuous allowed power.  I can imagine a statement in my logbook now- "Max continuous rpm allowed is 4500.   Higher rpm operation must be limited to 3 hours or less."  :-)
 
Van's lists the RV-3 as using engines from 100-160 HP, so a single would certainly fly it, and a turbo single would fly it well.  
 
BTW, these are just the sorts of rationalizations that I'm using to order a Dynon D10A EFIS Monday, pending another test of my buddy's unit this weekend.  
 
Cheers,
Rusty    
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