ft 120 in a lancair
01-06-2008, 06:45 PM
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ft 120 in a lancair
Hello all
Im building a lancair es 81 inch wing span I have installed a older ft 120 os 11 in it ( all rebuilt and broke in). My question is that I want to use a 3 blade prop for scale looks what pitch should I start with? Keep in mind that the motor has a special nut and washer assy. the prop nut has a big shoulder on it so the prop has to be bored out to almost 10mm and Ill need enough material in the prop hub to be able to do this? Ive currently tried a master air screw 13x8 three blade and Ive drilled into the hub webbing I dont feel safe using this prop now. Thanks in advance.
Im building a lancair es 81 inch wing span I have installed a older ft 120 os 11 in it ( all rebuilt and broke in). My question is that I want to use a 3 blade prop for scale looks what pitch should I start with? Keep in mind that the motor has a special nut and washer assy. the prop nut has a big shoulder on it so the prop has to be bored out to almost 10mm and Ill need enough material in the prop hub to be able to do this? Ive currently tried a master air screw 13x8 three blade and Ive drilled into the hub webbing I dont feel safe using this prop now. Thanks in advance.
01-07-2008, 01:19 AM
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RE: ft 120 in a lancair
13X8 is what i've heard.....i'm going to try a 14X9 on mine in a 90 size super sportster. haven't gotten far enough to see what brand prop i'm going to have to use though.
i'll post here when i get that far.
i'll post here when i get that far.
