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4 * forty --> 4 stroke recommendations

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Old 03-02-2003 | 02:40 PM
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Default 4 * forty --> 4 stroke recommendations

I need some recommendations for a 4 -stroke for a 4 * forty.

The choice is between the YS-45 ( I think the YS-63 will be too much) and the Saito .56.

Any recommendations are appreciated.

Thanks!
Old 03-02-2003 | 03:48 PM
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Default 4 * forty --> 4 stroke recommendations

The YS-45 is a 2 cycle engine, not a 4.

OS makes a 52 Surpass 4 stroke that will meet your needs too.
Old 03-02-2003 | 03:59 PM
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Default 4 * forty --> 4 stroke recommendations

50 or 60 4 stroke is what you want , 60 would give more aerobatic performance,
Old 03-02-2003 | 11:10 PM
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Default 4 * forty --> 4 stroke recommendations

Oops, I had a brain cramp for a second... I was meaning to inquire about the YS-.53, but was thinking .45... Sorry for the confusion, but now that it is mentioned, any feedback on the .45 as a 2-stroke relative to OS .46, other than the ~$65 price difference?
Old 03-04-2003 | 04:07 AM
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Default 4 * forty --> 4 stroke recommendations

My 4* flies very well with a TTPro 46 but if I can't keep my Smith Mini Plane in one piece this year I'll put the OS 52 Surpass that's in it into the 4*.
Old 03-07-2003 | 04:42 PM
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Default 4 * forty --> 4 stroke recommendations

mine has a Saito 50 on it and it flies like a dream........ I'm sure a Saito 56 will make it scream!!!

Alex
Old 03-07-2003 | 05:32 PM
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Default 4 * forty --> 4 stroke recommendations

O.S. 52 or Saito 56, both will be sweet!
Old 03-07-2003 | 07:42 PM
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Default 4 * forty --> 4 stroke recommendations

You can use anything from a mild .50 four stroke all the way up to a Saito .80 four stroke in the Four Star .40. However, a lot depends on your flying ability, and what you want to do with the plane. I agree with the others who say they fly REAL nice with something like a Saito .50, or O.S. .52 or YS .53. In my case, I like to fly with my tail on fire, and do unlimited stuff with my 4 * 40 and I have actually flown mine with three different engines over the years. I started out with an old Enya .60 four stroke, then went to a Saito .80 (flew it with floats and snow skiis), and finally settled on an O.S. Surpass .70, which I still fly in it today. The bigger engines require a repositioning of the receiver battery to the rear of the trailing edge of the wing to balance properly, and the larger prop diameter limits ground clearance with the stock LG, but the low end grunt, instant (vertical) acceleration, and ability to do wild tunmbles and flat spins, is what I really like with the bigger four strokes in this plane.

Like I said though, it just depends on what you want...

Lee
Old 03-09-2003 | 03:16 AM
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Default 4 * forty --> 4 stroke recommendations

A 40 four stroke is perfect on a 4 star 40 if it is built lite like it should be.........John

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