Guys,

Just for your info. Page 107 of the same May 1998, RCM, has a PA-18 (L-21) full page "5" view with cross sections (courtesy of 3 modelar). This version has the squared rear windows (not the L-4) instead of the droopy "D" style that are more common. The cowl also has a center line "bump" along the top that most cowls do not have. This "5" view also shows the location of inspection ports, drains, wire exits and some other details. Enlarge this plan and you may be able to build your own Supercub (construction style is up to you). I can not say that this 3 view is 100% accurate, but it is one of the few around with any detail. A Supercub similar to the "5" view is featured in the video "Bush Pilots of Alaska".