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Old 05-22-2007, 12:18 PM
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MattyC-130
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Default RE: 91 2 stroke?

I have 2 OS.91s one on a Cermark F-16 and one on a Juno F-18. Both have Ultrathrust Mufflers and I use APC 12x8s. 15x8 is way too much prop for a short stroke engine like the Mag .91 and a speed plane.