page_title: Cessna CH-1 Skyhook
section_title: Variants
hierarchical_section_title: Cessna CH-1 Skyhook / Variants
caption_attribution_description: Cessna YH-41 Prototype Helicopter developed for the U.S. Army. It is located in the storage hangers of the Ft. Rucker Army Aviation Museum at Ft. Rucker Alabama. This picture was taken on July 9th 2007
context_page_description: The Cessna CH-1 Skyhook is the only helicopter ever built by the Cessna Aircraft Company. It was the first helicopter to land on the summit of Pike's Peak and the last piston-engined helicopter to set the helicopter altitude record. The CH-1 had a single, two-bladed main rotor, and a front-mounted reciprocating engine which gave the aircraft a stable center of gravity. Its semi-monocoque airframe greatly resembles its light airplane siblings built by Cessna. The CH-1 was named Skyhook for the civil market, similar to the marketing names used in the Cessna single engine airplane line, such as Skyhawk, Skylane and Skywagon. The United States Army designated the CH-1C as the YH-41 Seneca. While the CH-1 achieved several helicopter firsts and set a world record, it never became a commercial or military success.
context_section_description: CH1-1
  test bed machine which did not have a skin, for initial hover and flight testing.
  CH-1
  The prototype CH-1 was powered by a Continental FSO-470 engine with a 2-place cabin.
  CH-1A
  Four-seat version of the CH-1 created by solving stability problems presented by the tail boom.
  CH-1B
  1955 changes to secure an Army contract. Continental FSO-526 engine producing 270 hp (200 kW) at 3000 rpm, with a gear-driven supercharger and horizontal cooling fan. An automatic collective pitch reducer lowered the collective pitch in the event of an engine failure.
  YH-41A
  Ten CH-1Bs purchased by the United States Army for evaluation against possible future production contract.
  CH-1C
  UH-41A
  15 CH-1C aircraft purchased by the United States Government for its Military Assistance Program (MAP) to foreign countries.
  CH-4
  Cessna's entry for the U.S. Army's Light Observation Helicopter program, it was a CH-1C powered by an Allison Model 250 engine mounted behind the rear passenger seat.
  CH-1D
  CH-1C modified with Continental's "Whirlaway" engine.
caption: CH-1B designated YH-41
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