The story
In the 1960s, McKinnon Enterprises of Sandy, Oregon started rebuilding Grumman Geese around PT6 turboprops, with retractable wingtip floats and more fuel. Only a handful of turbine conversions were ever finished, and the final G-21G model carried 680 horsepower a side in an airframe designed before World War II.
McKinnon certified just two G-21G Turbo Geese and a single G-21E as brand-new aircraft. Seeing any turbine Goose is a very rare catch.
Quick answers
How do you identify a Turbo Goose?
Looks like a Goose that hit the gym: long pointed turbine nacelles with exhaust stacks instead of round radial cowls. If the hull says 1937 but the engines whine, you've found the turbine.
What does a Turbo Goose sound like?
PT6 turbine whine where a radial rumble should be — a Goose that sounds like a King Air.
When did the Turbo Goose first fly?
Its first flight was in 1966.
How many Turbo Gooses have been built?
4 McKinnon-certified (plus STC conversions) built.
How rare is a Turbo Goose in Bogey?
LEGENDARY. The top tier. Spotters plan trips around a catch like this. Your first Turbo Goose catch is worth 1,000 points.

