stunthanger.com
Engine basics => Engine set up tips => Topic started by: Bootlegger on June 07, 2018, 08:26:29 AM
-
Will an O S 32 turn an 11x4 A P C prop alright? I am trying to get a little more bite, and load the engine some what. Thanks
-
OS 32 what? And what are you using now? And for what? For stunt, I suspect that a 32AX would do somewhere between OK and fantastic on that prop, but I haven't tried it. The biggest issue I'd look for is the engine wanting to run away, because the AX line seems to be tuned for higher speed than the LA and FP lines.
-
Sorry about the error, it is an S X or F don't remember which, but I do thank you for your response..
-
Sorry about the error, it is an S X or F don't remember which, but I do thank you for your response..
All of those will turn a 11 x 4, and that is very close to what you want, if it is an older OS 32 F or H you may want to try a TT 11 x 4.5
Randy
-
OS 32 what? And what are you using now? And for what? For stunt, I suspect that a 32AX would do somewhere between OK and fantastic on that prop, but I haven't tried it. The biggest issue I'd look for is the engine wanting to run away, because the AX line seems to be tuned for higher speed than the LA and FP lines.
Hello From reading the OS literature I believed the AX line were a more torquey engine as the recommended prop fro a AX 35 goes up to a 12x6 and for the AX55 they recommend up to 13x7 . Presumed these large props are to reduce noise on RC models . Having never tried an AX but curious how this new generation runs are the engines going to be hot and unhappy on big props or does all that extra fining and weight count for something?
http://downloads.hobbico.com/factsheets/osm/osmg0545-fact-sheet.pdf
Regards Gerald :)
-
Hello From reading the OS literature I believed the AX line were a more torquey engine as the recommended prop fro a AX 35 goes up to a 12x6 and for the AX55 they recommend up to 13x7 . Presumed these large props are to reduce noise on RC models . Having never tried an AX but curious how this new generation runs are the engines going to be hot and unhappy on big props or does all that extra fining and weight count for something?
http://downloads.hobbico.com/factsheets/osm/osmg0545-fact-sheet.pdf
Regards Gerald :)
Hi Gerald
he s asking about a Control Line setup, and you would never run one of those sizes on the 32 for CL, I do not even think the Os 32F would be at all happy on a 12x6
Regards
Randy
-
Will an O S 32 turn an 11x4 A P C prop alright? I am trying to get a little more bite, and load the engine some what. Thanks
That doesn't seem like a lot of load to me (that's about where I would start), but only one way to find out.
People underestimate how much power is available from these engines, I have seen people run 10-4 3-blades on 20FPs, and it ran fine and flew the airplane OK. It did get rather hot, though.
Brett