Helicopters

Kayaba · Japanese autogyros

Kellett Autogiro Corporation · 1930s American autogyro

Kellett Autogiro Corporation · experimental helicopter with intermeshing rotors

Korea Aerospace Industries · South Korean multi-role utility helicopter

Korea Aerospace Industries · South Korean light civil helicopter

Leonardo · attack helicopter developped by Leonardo

Lockheed Corporation · 1967 attack helicopter series by Lockheed

Lockheed Corporation · 1962 experimental helicopter series by Lockheed

Westland Helicopters · initial army production version of the Lynx helicopter

Hughes Helicopters · light utility helicopter

MD Helicopters · light twin-engine utility helicopter

Boeing · military utility helicopter model by Boeing

Mitsubishi · 1996 utility helicopter by Mitsubishi

McDonnell Aircraft Corporation · transport helicopter project

McDonnell Aircraft Corporation · 1940s American experimental lightweight helicopter

McDonnell Aircraft Corporation · aerial crane helicopter proposal

Kazan Helicopters · military transport helicopter

Kazan Helicopters · passenger transport helicopter

Rostvertol · night attack version of the Mi-35 assault helicopter

Ulan-Ude Aviation Plant · military transport helicopter

Mil Moscow Helicopter Plant · gunship version of the Mi-24 assault helicopter

Mil Moscow Helicopter Plant · antitank version of the Mi-24 assault helicopter

Mil Moscow Helicopter Plant · light utility helicopter

Mitsubishi Heavy Industries · Japanese version of the SH-60 helicopter

Indonesian Aerospace · transport helicopter model by IPTN

Breda-Nardi · executive helicopter

NHIndustries · naval helicopter

NHIndustries · military transport helicopter

Northrop Grumman Corporation · unmanned autonomous helicopter developed by Northrop Grumman

Schweizer Aircraft Corporation · unmanned autonomous helicopter developed by Northrop Grumman

Bell Textron · unmanned autonomous helicopter developed by Northrop Grumman

Teledyne Ryan · unmanned autonomous helicopter developed by Northrop Grumman

Kaman Corporation · observation helicopter model by Kaman

Pitcairn Aircraft Company · 1936 experimental autogyro model by Pitcairn

Piasecki Aircraft Corporation · experimental helicopter/airship by Piasecki Aircraft

Piasecki Helicopter Corporation · helicopter prototype by Piasecki Helicopter

PZL-Świdnik · Polish light multipurpose helicopter

Parrot · WiFi Controlled quadrotor helicopter.

Parrot · WiFi controlled quadrotor helicopter

Piasecki Aircraft Corporation · helicopter prototype by Piasecki Aircraft

Platt-LePage Aircraft Company · experimental helicopter, U.S. Army Air Forces, 1941

Westland Helicopters · military transport helicopter

Boeing Rotorcraft Systems · attack helicopter prototype by Boeing and Sikorsky

Denel · Attack helicopter by Atlas Aircraft Corporation, later Denel Aviation

Sikorsky Aircraft Corporation · multi-role helicopter family by Sikorsky

de Havilland Australia · military utility transport helicopter

Sikorsky Aircraft Corporation · 1977 transport helicopter family by Sikorsky

Aérospatiale · utility helicopter

Sikorsky Aircraft Corporation · anti-submarine helicopter model by Sikorsky

Mitsubishi Heavy Industries · 1987 naval helicopter model by Mitsubishi