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| | STC's |
 | | Piper J-3, J3P, J3L, J3L-S, J3L-65 (Army L-4C), J3L-65S, J3F-50, J3F50S, J3F-60, J3F-60S, (Army L-4D), J3F-65, J3F-65S, J3C-40, J3C-50, J3C-50S, (Army L-4, L-4B, L-4H, L-4J) (Navy NE-1, NE-2), J3C-65, J3c-65S, PA11 and PA11S. |
 | | Piper PA-28-140, -150, -151, -160, -161, -180, -181, -235, -236, -201T; PA-28S-160, -180; PA-28R-180, -200, -201, -201T; PA-28RT-201, -201T |
 | | Piper PA-28-140, -151, -160, -161, 1-80, -181, -235, -236, PA-28R-180, -200, -201, -201T, PA-28RT-201, -201T |
| www.kosola.com /stcs.htm (387 words) |
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