RCU Forums - View Single Post - Anyone put a OS FS-120 in a GP US60?
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Old 04-23-2014, 07:51 AM
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scottrc
 
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Join Date: Mar 2003
Location: A TREE, KS
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The 1.20 is pretty heavy with way more torque than what the .60 US was designed for. We also had problems with ground clearance due to the large prop the 1.20 requires. The .65AX with tuned pipe makes this plane a rocket yet flies like a dream.