K225 or K-225 may refer to:
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K-225 (Kansas highway), a former state highway in Kansas
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Kaman K-225
The Kaman K-225 is an American experimental helicopter developed by Kaman Aircraft. One example was modified to become the world's first gas turbine-powered helicopter.
Design and development
The K-125 was Charles Kaman's first helicopter, whi ...
, an American experimental helicopter
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HMCS Kitchener (K225), a former Canadian Navy ship
{{Letter-Number Combination Disambiguation