T31 may refer to:
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Aero Country Airport
Aero Country Airport is a privately owned public airport west of the central business district of McKinney, Texas, United States. The airport has no International Air Transport Association, IATA or International Civil Aviation Organization, ICA ...
, in McKinney, Texas
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General Electric T31
The General Electric T31 (company designation TG-100A) was the first turboprop engine designed and built in the United States.
Design and development
The TG-100A benefited from the Anglo/American technology exchange with one of its designers, Gl ...
, an American turboprop engine
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Komagawa-Nakano Station, in Higashisumiyoshi-ku, Osaka, Japan
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T31 cannon
The HS.404 is an autocannon originally designed and produced by Spanish/French company Hispano-Suiza in the mid-1930s. It was widely used as an aircraft, naval and land-based weapon by French, British, American and other military services, par ...
, an aircraft weapon
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Type 31 frigate
The Type 31 frigate or Inspiration class, and formerly known as the Type 31e frigate or General Purpose Frigate (GPF), is a planned class of frigate intended to enter service with the United Kingdom's Royal Navy in the 2020s alongside the subm ...
, a planned class of frigates for the Royal Navy
{{Letter-Number Combination Disambiguation