HS1 (disambiguation)

HS1, or High Speed 1, is the high-speed Channel Tunnel Rail Link running south from London to the tunnel between England and France.

HS1 or HS-1 may also refer to:

Transport

 * HS1, Formula One racing car built by the German team ATS
 * HS-1, designation of the Fox Chase Rapid Transit Line, an experimental rail line in Pennsylvania
 * HS-1, a variant of the Mrigasheer, a glider built by the Indian Civil Aviation Department

Military

 * Curtiss HS-1, a US Navy flying boat of World War I
 * HS-1, a former US Navy helicopter squadron known as the Seahorses, inactivated in 1997

Science and technology

 * HS1, a Hypersonic Gun tunnel at Imperial College, London, part of the UK's National Wind Tunnel Facility
 * HS1, an electrical stunning system produced by British company Ace Aquatec, used to ensure fish welfare at slaughter
 * HS1, a multimedia headset manufactured by US company Plantronics
 * HS1, a headset microphone manufactured by Australian company Røde Microphones
 * HS1, a designation for a type of automotive light bulb for motorcycles
 * HS-1, designation of one of the plutonium-gallium hemispheres used for the core in the first nuclear test detonation, codenamed Trinity
 * HS-1, a model of the Weisscam digital high-speed camera, manufactured by German company P+S Technik
 * HS-1, or Heteroscorpine, a polypeptide belonging to the Scorpine toxin family
 * HS-1, or Hymenistatin, a cyclic peptide

Music

 * Harry Styles (album), the 2017 debut album by Harry Styles

Other

 * HS1, a part of the British HS postcode area