dear mr. robison, thank you for your reply. cessna had a line of planes which i believe started with the 135. the number would change with an increase in h.p. when they got to 145 ? the added the name airmaster to there logo on the fin. it was dropped some where along the line. the 195 was the last one they built. i am looking for the plans for my ikon kit which could be any model number of 135 to 145. do you have any ideas? thank you rvwise