PT1 may refer to: *

486958 Arrokoth Arrokoth (minor-planet designation 486958 Arrokoth; provisional designation ), formerly nicknamed Ultima Thule, is a trans-Neptunian object located in the Kuiper belt. Arrokoth became the farthest and most primitive object in the Solar System ...

(New Horizons PT1), a Kuiper belt object and selected target for a flyby of the New Horizons probe *

Pratt & Whitney PT1 The Pratt & Whitney PT1 (US military designation T32) was a free-piston gas turbine A free-piston engine is a linear, 'crankless' internal combustion engine, in which the piston motion is not controlled by a crankshaft but determined by the inte ...

, a free-piston gas-turbine engine *

Consolidated PT-1 Trusty The Consolidated PT-1 Trusty (company designation Model 1) was a biplane primary trainer used by the United States Army Air Service (USAAS). Design and development In 1921, Colonel Virginius Clark, chief designer of the Dayton-Wright Company ...

, a 1930s USAAS primary trainer airplane *

Piper PT-1 __NOTOC__ The Piper PT-1 was a 1940s American two-seat primary training monoplane designed and built by Piper Aircraft at Lock Haven. A low-wing tandem two-seat monoplane, the PT-1 was the first Piper aircraft to have a low-wing. It had a fabric ...

, primary trainer airplane. * PT-1, a pre-World War II US Navy

PT boat A PT boat (short for patrol torpedo boat) was a motor torpedo boat used by the United States Navy in World War II. It was small, fast, and inexpensive to build, valued for its maneuverability and speed but hampered at the beginning of the war ...

* ''

Prison Tycoon ''Prison Tycoon'' is a business simulation game, business simulation computer game developed by Virtual Playground and published by ValuSoft in 2005 in video gaming, July 2005 that puts the user in charge of a prison. Objectives are to keep the pr ...

'', a 2005 video game * PT1, a

paratriathlon classification Paratriathlon classification is the classification system for athletes participating in paratriathlon. It is governed by the World Triathlon (formerly known as ITU) The sport has been included in the 2016 Summer Paralympics. Classification system f ...

See also