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Old 03-09-2010 | 02:12 PM
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SeamusG
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From: Arvada, CO
Default RE: 4*60 build question

If you need some specific pictures - just ask. I am in the process of modifying my 4Star60 to mount the engine at 90 degrees, a tank hatch and a built up cowl. I also have a SIG Smith Miniplane cowl that fits pretty nicely.

I support campgems suggestion that the 4Star60 builds tail heavy. Before this mod I had a Saito FA 91 in a standard position, original "cowl cheeks". The tank is a Dubro 12 oz. Landing gear is the Dubro composite one shown with fairly heavy tires. , A Higley Heavy hub and an additional 3 oz of lead was needed on the back side of the firewall.The battery was snugged up against the back of the FW as well.

Oops - a note about adding right "side"thrust. The plans call for 0 degrees of side thrust. My plane needed 2 - 2 1/2 degrees of right thrust make it behave on take offs. Iwas using a Zinger 13x6/10 multi-pitch prop. This particular prop really pulls hard during throttle transition from idle-plus thru mid-throttle resulting in an agressive left hand tendancy on take off. The added right thrust made long, straight take offs 2nd nature.