The Bell 204/205 is a civilian multi-purpose helicopter developed in 1956 by the American aircraft building corporation Bell Helicopters.
The aircraft model Bell 204/205 began to be developed by American aircraft designers in 1952, while the helicopter was designed in conjunction with the model of the military helicopter Bell UH-1 Iroquois, although it received a slightly different design and flight performance. Even though the helicopter was supposed to be used exclusively in the field of civil aviation, subsequently, this model also found active application in the military sphere, where, however, it was used very limitedly.
The Bell 204/205 model helicopter made its first take-off in 1956, however, the aircraft manufacturer was unsatisfied with the flight performance of the aircraft, as a result of which the project was aimed at optimization, and this model was sent to serial production only in 1959.
The helicopter cabin has a fairly large capacity and depending on the configuration and version of the aircraft, it can accommodate up to 10 people, including 1-2 pilots and 8-9 passengers. Due to the presence of a large amount of free space, the helicopter can also carry onboard its cargo of various kinds, weighing up to 2225 kilograms, which mainly depends on the modification of the aircraft and the volume of cargo.
The propulsion system of the Bell 204/205 model helicopter consists of one Lycoming T53-L-11A gas turbine aircraft engine (depending on the modification of the aircraft), which is capable of developing 1100 horsepower, which in turn provides the helicopter with large load capacity and good lift force. The cruising speed of the Bell 204/205 model is about 205 km \ h, and the maximum distance that this aircraft can fly is 535 kilometers.
- Bell 204B – a multi-purpose civilian version of the helicopter, which is the basic production version of this aircraft;
- Agusta-Bell AB 204 – an analog of the Bell 204B version, manufactured by an Italian aircraft manufacturer;
- Fuji-Bell 204B-2 – a Japanese version of the Bell 204B version;
- Bell 205A – a military-civil multi-purpose version of a helicopter that allows carrying up to 14 passengers on board;
- Agusta-Bell 205 – Italian analog of the Bell 205A version;
- Bell 205A-1 – An upgraded version of the Bell 205A version, with an increased load rating;
- Agusta-Bell 205A-1 – an Italian version of the Bell 205A-1 version;
- Fuji-Bell 205A-1 – a Japanese version of Bell 205A-1;
- Bell 205B – A modernized version of the helicopter, capable of transporting up to 5215 kilograms of payload;
- Bell 210 – An improved version of the helicopter;
- Agusta-Bell 205BG – an experimental version of the helicopter equipped with a Gnome H 1200 turboshaft engine;
- Agusta-Bell 205TA – an experimental modification of the aircraft, equipped with two Turbomeca Astazous turboshaft engines;
- Bell 208 – An experimental version of the helicopter, tested in 1965.
- Bell 205A+ – An improved version of the helicopter, which received a more advanced main rotor and a number of other technical improvements;
- Bell Advanced 205B – Japanese modification of the aircraft;
- Bell Global Eagle – modification equipped with two engines of the brand Pratt & Whitney Canada;
- Bell Huey 800 – An improved commercial version of the helicopter.
- Crew: 2 people (depending on configuration);
- Capacity: 8 people (depending on version);
- Length: 12.7 m. (Depending on version);
- Height: 4.65 m. (Depending on version);
- The diameter of the rotor: 14.64 m. (Depending on version);
- Empty helicopter mass: 2085 kg. (Depending on version);
- Maximum takeoff weight: 4310 kg. (Depending on version);
- Cruising speed: 205 km \ h. (Depending on version);
- Maximum flight speed: 235 km \ h. (Depending on version);
- Maximum flight range: 535 km. (Depending on version);
- Maximum flight height: 5910 m.;
- Powerplant: Lycoming T53-L-11A (depending on version);
- Power: 1100 hp (Depending on version).