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Old 02-24-2007, 07:29 AM
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Default SR71 blackbird

I had purchase a 46 size SR71 blackbird and had installed an OS 46 motor with a 10x8 APC prop. When I flew it and it flew like it needed a larger size engine. Should I change it out to an OS 50 or just change out the prop to a 10x6? Anyone out there wants to share there experience would really appreciate it.