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T55E1 3-Inch 8x8 Gun Motor Carriage

"Cook Interceptor" 


Country of Origin/Used by: USA
First Produced/Service Dates: 1943
Manufactured by: Allied Machinery Manufacturing Company.  (Designed by Cook Brothers Equipment Company)
Crew: 4
Armament: Main: (1) 3-Inch cannon; Secondary: (1) .50 cal heavy machine gun.
Engine: (2) Cadillac 8-cylinder water-cooled engines.
Miscellaneous Info: The one T55E1 GMC prototype succeeded the lone T55 vehicle, which was also designed by the Cook Brothers.  Both the T55 and T55E1 were informally called the 'Cook Interceptor' and were chain driven.  Although the peformance of both vehicles was deemed very good they were not adopted for production because by the time they were tested in 1942-43, the US Army's preference had changed in favor of tracked anti-tank vehicles instead.
Data Sheet Available:   T55E1 3-Inch GMC Data Sheet by Dave Haugh


Reference Source/Provider
T55E1 3-Inch 8x8 GMC Photos US Miltiary via Dave Haugh - Content Editor

References Available


Reference Source/Provider


Reference Author
A Photo History of Armoured Cars In Two World Wars George Forty
Armored Cars: A History of American Wheeled Combat Vehicles R.P. Hunnicutt
"Cooks Cozy Cabins: Chain Drive Combat Carriages" Wheels & Tracks: The International Review of Military Vehicles - Issue #2
Encyclopedia of Armoured Cars Duncan Crow and Robert J. Icks
Searching for Perfection: An Encyclopedia of U.S. Army T-Series Vehicle Development (1925-1958)

Review by Peter Brown via Missing-Lynx

David R. Haugh
U.S. Military Wheeled Vehicles Fred W. Crismon

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