Thread: Discussion Durafly Vampire 70mm
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Old Oct 16, 2012, 04:06 AM
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Newport Beach, CA
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Cut up a plastic cup at the field for an exit duct experiment. little bit smaller exit size than stock then stuck a 5mm shim under it to change the thrust angle. Much better
Didn't notice any speed increase though.
Did a couple tailslides for fun, no problem with this jet!
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