4 Stroke Heli
#1
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From: Jasper,
AL
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?
Anyone here had any experience with this heli?
#2

Joined: Dec 2001
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From: Tallahassee,
FL
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.
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.



