Walter Engine Mod Under Way for Caravan

AOG Air Support of Kelowna, B.C., Canada is undertaking a program to convert Cessna 208 Caravans from their original 675-shp P&WC PT6 to the 751-shp Walter M601E turning a five-blade Avia propeller. The company, which expects to complete the program in about 12 months, said the Czech engine and propeller will improve the turboprop single’s performance on both wheels and floats. Conversions are expected to cost $400,000. AOG will also offer a STOL airfoil mod for the Caravan for an additional $42,000. Meanwhile, Anchorage-based Aero Twin continues work on its 850-shp Honeywell TPE331 conversion for Caravans (AIN, July page 10).