What engine to use?
04-04-2004, 02:09 AM
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What engine to use?
I just bought a Great Planes Extra 300S 0.60 size (Requires: 2-stroke .61-.91 cu in (10-15 cc) or 4-stroke .91-1.20 cu in (15-20 cc) engine)
What engine should I use with it and why?
Thanks Jeff
What engine should I use with it and why?
Thanks Jeff
04-04-2004, 06:50 PM
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RE: What engine to use?
I have this plane with a Magnum 91 two stroke, and like it. A Super Tigre 90 would also be good. It would be weak with a 61 in it. I will leave the four stroke recommendations to those who run them and like them.
Clair
Clair
04-05-2004, 12:03 AM
#4
RE: What engine to use?
Get a YS 110 four stroke. You won't be disappointed. Mine runs perfectly and idles at a rock steady 2K rpm with only 32 oz of fuel through the engine. Check it out: [link=http://www.whitetyphoon.com/rc/h9_corsair/movies/idling.mpg]YS 110FZ Idling[/link].
In fact, all three of my 110's are like this.
In fact, all three of my 110's are like this.
04-05-2004, 12:36 AM
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RE: What engine to use?
Go anywhere in the middle to upper range of the recommended 4-stroke engine size.
O.S. FS-II series 4-strokes are VERY nice for learning about 4-strokes with. They will spoil you. I went 20 months without needing to touch my needle valve on my .91. (which has the power to take an 11 lb airplane unlimited vertical without using full throttle... so much power... I have to FORCE myself to use more than 2/3 throttle any more.)
MAgnum 4-strokes are much less expensive and everone that I know that has one is very happy with thiers... Probably not bad as a first 4-stroke.
YS and Saito are not as forgiving about needle settings. They generally need a little tweaking with weather changes. They do give more power per cubic inch than the O.S. They are more expensive and repair parts are more expensive... Great engines, but I don't consider them good for a first 4-stroke.
O.S. FS-II series 4-strokes are VERY nice for learning about 4-strokes with. They will spoil you. I went 20 months without needing to touch my needle valve on my .91. (which has the power to take an 11 lb airplane unlimited vertical without using full throttle... so much power... I have to FORCE myself to use more than 2/3 throttle any more.)
MAgnum 4-strokes are much less expensive and everone that I know that has one is very happy with thiers... Probably not bad as a first 4-stroke.
YS and Saito are not as forgiving about needle settings. They generally need a little tweaking with weather changes. They do give more power per cubic inch than the O.S. They are more expensive and repair parts are more expensive... Great engines, but I don't consider them good for a first 4-stroke.
04-05-2004, 03:11 AM
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RE: What engine to use?
ORIGINAL: Richard L.
Get a YS 110 four stroke. You won't be disappointed. Mine runs perfectly and idles at a rock steady 2K rpm with only 32 oz of fuel through the engine. Check it out: [link=http://www.whitetyphoon.com/rc/h9_corsair/movies/idling.mpg]YS 110FZ Idling[/link].
In fact, all three of my 110's are like this.
Get a YS 110 four stroke. You won't be disappointed. Mine runs perfectly and idles at a rock steady 2K rpm with only 32 oz of fuel through the engine. Check it out: [link=http://www.whitetyphoon.com/rc/h9_corsair/movies/idling.mpg]YS 110FZ Idling[/link].
In fact, all three of my 110's are like this.
04-05-2004, 09:24 AM
#7
RE: What engine to use?
I never run onboard fuel pump or onboard glow with any of my 4-strokes. Those just add weight and are extra things to worry about. I only fly with pumped OS 4-strokes and YS 4-strokes, and since YS 4-strokes are supercharged and pressurize the fuel tank, there is no need or desire to use onboard fuel pump.
By the way, I find YS much more easier to tune than both OS and Saito. Once my needles are set, I don't touch them again. Of course, your mileage might varry. It took me 30 seconds to tune that YS 110 in the video given above after two tanks of fuel on the bench. Good luck trying to do the same to any other 4-strokes.
By the way, I find YS much more easier to tune than both OS and Saito. Once my needles are set, I don't touch them again. Of course, your mileage might varry. It took me 30 seconds to tune that YS 110 in the video given above after two tanks of fuel on the bench. Good luck trying to do the same to any other 4-strokes.
