Sikorsky CH-53 Sea Stallion is an American heavy military transport multi-purpose helicopter developed in 1964 by Sikorsky Aircraft.
The design of the Sikorsky CH-53 Sea Stallion multipurpose military transport helicopter began in 1960 with American aircraft manufacturers from Sikorsky Aircraft. The development of a heavy aircraft was associated with the demand for such aircraft in the US Armed Forces, while the initiator of such a project was the command of the United States Marine Corps.
When designing a military transport helicopter model Sikorsky CH-53 Sea Stallion, American aircraft manufacturers tried to create not only an aircraft of large capacity and cargo capacity but also a fairly maneuverable aircraft. In this connection, the design of the helicopter underwent some important changes that allowed the helicopter to perform complex maneuvers even despite its large dimensions.
The first test of a helicopter with a lift into the air was carried out in 1964, while the project almost completely passed all the required tests, which is why several months later, after the required modifications, it was put into mass production, where it continued until 1978 years, due to the high demand for such aircraft.
In addition to the military sphere of its application, the Sikorsky CH-53 Sea Stallion helicopter was also actively used in civil aviation, where it was mainly used for transporting large loads, including an external hitch.
The power plant of the Sikorsky CH-53 Sea Stallion aircraft includes two General Electric T64-GE-413 gas turbine engines, which depend on the modification of the aircraft, which creates a total power of 7850 hp. The Sikorsky CH-53 Sea Stallion helicopter can fly at distances of 1000 kilometers, with a cruising flight speed of 275 km \ h.
It should be noted that in addition to transporting people and goods on its board, the helicopter is also actively operating as a combat air vehicle capable of providing fire support from the air. The armament of the Sikorsky CH-53 Sea Stallion helicopter consists of:
- Two large-caliber 12.7 mm. machine guns;
- Two machine guns of 7.62 mm caliber.
Onboard the aircraft Sikorsky CH-53 Sea Stallion can accommodate up to 3630 kilograms of payload, including that can be mounted on an external hitch, if its dimensions do not allow to be placed in the cargo compartment of the helicopter. Also, this aircraft can carry onboard up to 58 people, including three crew members and 55 equipped military personnel.
- Sikorsky YCH-53A Sea Stallion – the primary prototype of the aircraft, equipped with less powerful power plants;
- Sikorsky CH-53A Sea Stallion – a production version of the helicopter, developed by order of the US Marine Corps;
- Sikorsky RH-53A Sea Stallion – A modernized version designed by order of the US Navy;
- Sikorsky TH-53A Sea Stallion – A training version of the aircraft, developed by order of the US Air Force;
- Sikorsky CH-53D Sea Stallion – version with improved transmission and increased capacity;
- Sikorsky RH-53D Sea Stallion – an analog of the Sikorsky CH-53D Sea Stallion version, designed by order of the US Navy;
- Sikorsky VH-53D Sea Stallion – VIP version of the helicopter;
- Sikorsky VH-53F Sea Stallion – An improved design version of the version of Sikorsky VH-53D Sea Stallion;
- Sikorsky CH-53G Sea Stallion – a special version of the helicopter, designed by order of the German Air Force It is equipped with a more efficient power plant, and is used as a multi-purpose aircraft, including for military purposes;
- Sikorsky CH-53GS Sea Stallion – An updated version of the helicopter version of the Sikorsky CH-53G Sea Stallion. It is equipped with additional weapons, and has an increased flight range;
- Sikorsky CH-53GE Sea Stallion – the military version of the search and rescue helicopter;
- Sikorsky CH-53GA Sea Stallion – 2010 modification, equipped with external fuel tanks and new avionics systems;
- Sikorsky S-65C-3 Yas’ur – an export version of the helicopter, created by order of the Israeli Air Force;
- Sikorsky S-65OE – export version of the helicopter, developed for the Austrian Air Force.
The operation of helicopters of the Sikorsky CH-53 Sea Stallion model continues to this day.
- Crew: 3 people (depending on version);
- Capacity: 55 people (depending on version);
- The length of the helicopter: 26.97 m. (Depending on version);
- The height of the helicopter: 7.6 m. (Depending on version);
- The diameter of the rotor: 22 m. (Depending on version);
- The mass of the empty helicopter: 10740 kg. (Depending on version);
- Maximum take-off weight: 19100 kg. (Depending on version);
- Cruising speed: 275 km \ h. (Depending on version);
- Maximum flight speed: 315 km \ h. (Depending on version);
- Maximum flight range: 1000 km. (Depending on version);
- Maximum flight height: 5110 m.;
- Powerplant: 2 × General Electric T64-GE-413 (depending on version);
- Power: 2 × 3925 hp (Depending on version).