RCU Forums - 4 Stroke Heli

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Culverson

12-13-2002 01:57 PM

4 Stroke Heli

Right after Xmas I might look into a 4 stroke X-cell Graphite "SE" 4-Stroke using a 4 stroke 91... A friend has one NIB..& engine up for sale very reasonable...

Anyone here had any experience with this heli?

GM1	12-13-2002 06:24 PM

4 Stroke

I flew an XL SE with YS 91 ACH for a couple of years. They are very smooth and quiet and use about half as much fuel as a 60. The down side was they don't make quite as much horsepower and struggle a little through consecutive maneuvers. The motors have a very specific red line and will come apart if you exceed that so a GV-1 was almost required.
Gordie

I still have the used conversion with a used Hatori exhaust but a brand new YS 91 ACH for sale if anyone wants to try a 4 stroke.

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