i did an AV of the TopFlite Cessna 182 , weight , wing area and sizes to match with O.S 91 4 stroke for power , flaps on channel 8 3 way grab 211's , Skylane TC by 211_CS . https://forums.realflight.com/index.php?resources/11489 . this is 4.5 version CS which works in 7.5