T42

T42 may refer to:

Vehicles

• Beechcraft T-42 Cochise, an American trainer aircraft
• T42 medium tank, a 1950s American tank design
• T-42 super-heavy tank, a Soviet tank project from the inter-war period
• SJ T42, a Swedish diesel-electric locomotive
• Slingsby T.42 Eagle, a British glider
• Cooper T 42 a series of racing cars participating in the Eläintarhan ajot competitions
• Mecklenburg T 42, a former class name for a Class 99 steam locomotive

Other uses

• T42 (classification), a disability sport classification for above knee amputees
• IBM ThinkPad T42, a laptop model
• Ruth Airport, in Trinity County, California, United States