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OS .40 LA
Just bought myself my 2nd plane (but new to gas planes) and ended up getting the OS .40LA, is this engine any good? I know all O.S. engines are really good and should be trouble free. I take good care of all my nitro engines (cars), and would like to know if anyone has had any expirence with this engine?
Cheers! |
RE: OS .40 LA
The LA series engines are great all around engines. They're easy to tune and seem to last forever. I have 4 .40 LA's, and I beat them up pretty good. I've never broken one. I use them when I make my SPAD planes. Some fly, some just "Fall with style". For a trainer or small sport plane, (something that's going to crash a couple times) you can't beat them (literally).
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RE: OS .40 LA
they get good mileage! there is another thread where I stated that mine flew 10 minutes on a 4-5 oz tank! but it was a trainer so I was puttering around , a spad is heavier and would take more throttle...Rog
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RE: OS .40 LA
I have a .65 la on my cloud dancer, and I have to land because it flies so long on 10 oz. after about 10 mins I still have a 1/4 tank left. [X(][8D] I have a .46 la and it is the same way... they are great. I havent had any probs with them.
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RE: OS .40 LA
Agree, great little engine, easy to operate but not very powerful so need to set reasonable expectations about what it can haul around. My 2.8Kg plastic bodied trainer was just a little too heavy to ROG if the grass at our strip was anything approaching long (i.e overdue a cut).
Regards, Andy |
RE: OS .40 LA
The little engine that could!!
I like LA's in sport planes, they are not top muscle and don't like to run too lean (no engine likes this) but they are reliable and rugged |
RE: OS .40 LA
Im really glad to hear that. Yeah I know, i never run my engines lean i like them on the rich side. As I say, im only learning to fly a gas plane and I wont be flying very fast but just puttering it around. And I did want an engine that will give me trouble free. Thanks everyone!
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RE: OS .40 LA
hitman
Do the engine a favour and use around 22% oil and preferably with a lot (if not all :)) castor. It's a plain bearing engine and if you use castor the crank and bush will likely never wear out. Castrol M is quite widely available here in Oz, I get mine from a Caltex fuel depot on occasions. Make sure the steel shim thrust washer between the crankcase and prop driver is well lubricated before using an electric starter. |
RE: OS .40 LA
ORIGINAL: downunder hitman Do the engine a favour and use around 22% oil and preferably with a lot (if not all :)) castor. It's a plain bearing engine and if you use castor the crank and bush will likely never wear out. Castrol M is quite widely available here in Oz, I get mine from a Caltex fuel depot on occasions. Make sure the steel shim thrust washer between the crankcase and prop driver is well lubricated before using an electric starter. |
RE: OS .40 LA
Thanks! for the advice guys. Yeah im a Castor fan too. Now just a quick question...
Do the Heli guys use a smoke additive to their fuel or is it just high oil content? I want my engine smokin' (in a good way :D) Cheers! |
RE: OS .40 LA
Helis do use more oil than usual but it seems worse (smoke-wise) because the exhaust isn't being hit by a direct blast of 100MPH air straight from the prop. I use 25% all castor in my ST G51 (no, not in a heli!) and it leaves a smoke trail but nothing that you'd write home about :)
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RE: OS .40 LA
arhh well thats true too, thanks anyways. I use 20% oil in all my car engines, they run great with it. Havnt missed a beat, and they too smoke really well but not as much.
Ohh well not to worry. Thanks guyz. |
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