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RV9 LSA/TR1 ?

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tmclam(at)suffolk.lib.ny.
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Posted: Sun Jan 23, 2011 3:06 pm Post subject: RV9 LSA/TR1 ?

A nice RV9 was displayed at Sebring as a Light Sport airplane.[wood

prop,no wheel fairings,etc.]with a 120kt cruise.

As a starter to thoughts re the TR1[forget the regulation interpretations

for now]how about a simple new larger fabric /wood wing designed by

Rich,Mark,and others.

                                  I am listening

                                           Ted

  PS The Viking/Honda engine package for a 110 HP engine looks like real

competition for Rotax.

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mantafs(at)earthlink.net
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Posted: Sun Jan 23, 2011 8:13 pm Post subject: RV9 LSA/TR1 ?

Hi Ted,



When I was working at Tri-R I did a preliminary design for an LSA based on the TR1.  Mostly longer wing and bigger tail if I recall correctly.  It could be have been done fairly easy using the same construction methods as the TR1.



I also did an LSA design for a Chinese company that was built and flown.



In any case I do not think wood and fabric are the way to go.  For the same strength wood is about 3 times the weight of steel.  Steel is about 2 times the weight of aluminum.  Aluminum is about 2 times the weight as fiberglass.  So why use wood?  Of course carbon is about 3 times the strength as fiberglass but costs more.



If a few people are really interested in making an LSA version I could design and build a (full) wing kit and tail extension kit to make it meet LSA regulations.



Mark

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