Hi and thanks. Just doing some calculating. What is the chord length for the RV4,RV8 and the RV6. Also what is the spar height for same. Thanks again. Tom in Ga.
 
Chord = area/span
Spar height (for an RV-7, same as a 4, 6 & 8) = 7 3/4"
Wing thickness = 7 7/8"