Kaman K-225
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Original source: http://www.flickr.com/photos/publicresourceorg/493995872/ Author Unknown Cropped, better-quality version of same photograph
Author: Unknown Cropped, better-quality version of same photograph

The Kaman K-225 was an experimental helicopter developed by Kaman Aircraft. One was modified to become the world's first gas turbine powered helicopter.

* A Kaman K-225 helicopter, the oldest surviving Kaman-built aircraft.1
and a Kaman K-225 helicopter (the oldest surviving Kaman-built aircraft).2
chopper in the world, the Kaman K-225 was unveiled on December 11, 1951.3
engine helicopter, the Kaman K-225, flew in 1951. A turbine powered tandem rotor helicopter did not fly until later.4
On 11 December 1951, the Kaman K-225 became the first turbine-powered helicopter in the world.5
first gas turbine powered helicopter, a modified Kaman K-225 in December of 1951.6

Made by Kaman Aircraft.

The Kaman K-225 had no pitch change motion at the root.7
the 20th century, pioneered by the Kaman K-225 synchropter, , which first flew with gas turbine power late in 1951, led to the development of larger, faster, and higher-performance helicopters.8
The Kaman K-225 was an experimental helicopter developed by Kaman Aircraft.9
Kaman K-225 (contra-rotat rots heli rly 50s) P AC 11/5 May 75 P AC 16/7 July 82 PA AP 54/55 PA 10
The Kaman K-225 uses a turbine that makes for a lighter, simpler, more powerful engine compared to a conventional piston engine.11
Kaman K-225 - (scan - 1997) Kawanishi N1K2-J Shiden-Kai "George" - right side (scan - 1984) Kawanishi N1K2-J "George" - left side (scan - 1989) 12
Primary user
United States Coast Guard
United States Navy
Manufacturer
Kaman Aircraft
Similar Aircraft
* Flettner Fl 282
Related
* HH-43 Huskie
First Flight
July 1949
Unit Cost
25000.0
Status
Retired
Category
Aircraft in the collection of the Smithsonian Institution
Helicopters

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