McDonnell XV-1 is a military experimental helicopter developed by McDonnell Aircraft in 1954.
The McDonnell XV-1 model multipurpose high-speed aircraft was created by American engineers in 1951. As a base, American experts took several German-made models that were produced before the start of World War II, however, the designers did not use the design, but the operating principle of these aircraft, which was improved, so the McDonnell XV-1 helicopter could accelerate to higher speeds, and gained higher functionality, although the current model has not arrived in real use.
The McDonnell XV-1 helicopter has an improved aerodynamic design, which in turn makes it a high-speed aircraft, albeit with reduced maneuverability. Due to its high speed and compact enough design, the aircraft was supposed to be used for a wide variety of purposes, including as a search and rescue vehicle, as a small vehicle, as a patrol and reconnaissance aircraft, and even as an independent combat unit, capable of waging an effective fight against enemy manpower and lightly armored vehicles.
The McDonnell XV-1 aircraft underwent its first flight tests in mid-1954, however, the project could not fully meet the expectations of aircraft developers. In this connection, the second prototype of this aircraft was presented a little later, which has higher flight performance and is more reliable in terms of its operation. Nevertheless, the military leadership of the US Armed Forces disapproved of the current model, and therefore all work on the design of the helicopter McDonnell XV-1 was curtailed.
Onboard an aircraft model McDonnell XV-1 can accommodate up to three people, including one pilot and two military personnel, or, if the helicopter was supposed to be used as a search and rescue tool, then only one additional crew member who was engaged in lifting people on board. If necessary, the aircraft could also carry up to 500 kilograms of payload, however, in this context, as well as in combat, the helicopter was not tested in connection with the closure of the project.
The power plant of the McDonnell XV-1 helicopter consists of one Continental R-975-19 brand piston radial aircraft engine, which is capable of developing a thrust of 525 hp and accelerating the aircraft to a speed of 325 km \ h. The maximum distance over which an aircraft of this model can fly is 955 kilometers, which is very impressive.
- Crew: 1 person;
- Capacity: 2 people;
- Length: 15.38 m.;
- Height: 3,42 m.;
- The diameter of the rotor: 9.4 m.;
- The mass of the empty helicopter: 1940 kg .;
- Maximum take-off weight: 2500 kg .;
- Cruising speed: 225 km \ h.;
- Maximum flight speed: 325 km \ h.;
- Maximum flight range: 955 km .;
- Maximum flight height: 6030 m.;
- Powerplant: Continental R-975-19;
- Power: 525 hp