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