The AT-23B was a stripped version of the B-26C that was used for target towing by the USAAF. Two hundred and twenty-five of these AT-23Bs were delivered to the US Navy as JM-1, where the J stood for a general utility category used by the Navy from 1931 through 1955. BuNos were 66595 through 66794 and 75183 through 75207. The JM-1 was used by the Navy for target towing and other general utility duties. It was never used in combat. Many Navy JM-1s were painted with a bright orange-yellow finish, but the USAAF AT-23Bs retained their natural metal finish.
A few JM-1s were converted for reconnaissance duties under the designation JM-1P.
Sources:
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Famous Bombers of the Second World War, William Green,
Doubleday, 1959.
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The Martin Marauder B-26, Victor C. Tannehill, Boomerang Publishers, 1997.
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The Martin B-26 Marauder, J. K. Havener, TAB Aero, 1988.
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Me & My Gal--The Stormy Combat Romance Between a WW II Bomber
Pilot and His Martin B-26, Charles O'Mahony, Wings,
December 1994.
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The Martin B-26B and C Marauder, Ray Wagner, Aircraft in
Profile, Doubleday, 1965.
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Jane's American Fighting Aircraft of the 20th Century,
Michael J.H. Taylor, Mallard Press.
- American Combat Planes, Third Enlarged Edition, Ray Wagner, Doubleday, 1982.
