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  #21  
Old 11-25-2016, 06:24 AM
rv7charlie rv7charlie is online now
 
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Quote:
Originally Posted by n38139 View Post
If you have to build it as an LSA as someone said then how do Ercoupes, Champs, and Cubs, all certified airplanes meet the requirements? I get the speed, weight issues.
By being originally certified with performance & weight specs that fall within the requirements, and never having their type cert modified to exceed them. Some Ercoupes never qualified, and others have STC mods that take them out of limits. Once out, they can't go back.
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  #22  
Old 11-25-2016, 06:47 AM
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Mel Mel is online now
 
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Quote:
Originally Posted by RV3Bob View Post
To meet stall speed I am building light.
Bob Grigsby
Building light helps your useful load, but stall speed is measured at gross weight.
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  #23  
Old 11-25-2016, 11:30 AM
rv7charlie rv7charlie is online now
 
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Default LSA stall speed requirements/RV3 stall speed

https://www.google.com/webhp?sourcei...0stall%20speed

http://www.vansaircraft.com/public/rv3perf.htm
(without an extended wing)
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  #24  
Old 06-29-2018, 06:43 PM
gasman gasman is offline
 
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Quote:
Originally Posted by rv7charlie View Post
LSA rules are with no flaps......

Van's spec sheet shows stall speed using flaps.
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  #25  
Old 06-29-2018, 10:10 PM
rv7charlie rv7charlie is online now
 
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Good point. But if built light, and the initial gross weight is set a few knots slower, it shouldn't be too difficult to meet the no flaps stall number. Anyone have a good idea on how many knots the -3's flaps are good for?

Charlie
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  #26  
Old 06-29-2018, 11:21 PM
gasman gasman is offline
 
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Originally Posted by rv7charlie View Post
Good point. But if built light, and the initial gross weight is set a few knots slower, it shouldn't be too difficult to meet the no flaps stall number. Anyone have a good idea on how many knots the -3's flaps are good for?

Charlie
I have never weighed anything in knots.... but, maybe you are onto something.....
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