Serious questions loom over GM-17 Viper project | Aviation International News

Serious questions loom over GM-17 Viper project

The GM-17 Viper project is in serious jeopardy following several recent developments.

By Vladimir Karnozov

February 1, 2007

The GM-17 Viper project is in serious jeopardy following several recent developments. The GM-17 is a modified Piper P Navajo on which the two wing-mounted 425-hp piston engines are replaced by a single 750-shp Walter M601E turboprop placed in the redesigned forward fuselage.

The Tekhnoavia design house and Smolensk aircraft production plant, both based in Russia, have sent Russia’s Rosaviacosmos state agency a letter informing the authorities about their decision to withdraw from the project and appealing for the grounding of the two prototypes because of flight-safety concerns.

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