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Webra 91 P5 AAR

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The new Webra Speed 91-P5 15 cc 2-stroke motor was designed to meet the new rule changes introduced by the FAI for the F3C class. This is a truly amazing power plant: a 15 cc motor, but virtually the same size and weight as a 10 cc unit. The mounting holes are absolutely identical to the 61/75-P5 series, which avoids any installation problems in a wide range of model helicopters. The design implements a number of new technologies, such as separate cylinder and lower crankcase, no cylinder liner, hardened special aluminium casting alloy and high-quality piston alloy (RSP technology). The piston/cylinder is an implementation of the proven Webra AAR*) system.

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