FAST OLD PZL-Mielec M-18 DROMADER - nine cylinder air-cooled radial airc...

FAST OLD PZL-Mielec M-18 DROMADER - The PZL-Mielec M-18 Dromader (Polish: "Dromedary") is a single engine agricultural aircraft that is manufactured by PZL-Mielec in Poland. The aircraft is used mainly as a cropduster or firefighting machine.PZL-Mielec, then known as WSK-Mielec, began to design the Dromader in the mid 1970s, with help of United States aircraft manufacturer Rockwell International. PZL-Mielec asked for Rockwell's help because of the political situation at the time: operating in an Eastern Bloc country, PZL wanted the aircraft to sell well worldwide, and the company realized that FAA certification would be important in reaching that goal. Rockwell on the other hand wanted to fit Polish high-power radial engines into its agricultural planes. As a result of this cooperation the Rockwell Thrush Commander aircraft was fitted with the PZL-3 engine, and the Polish designers created the higher payload M-18 Dromader by introducing the more powerful ASz-62 engine, making structural changes to the airframe, and increasing dimensions. This co-operation meant that the Dromader shares outer wing panels and part of a fuselage with the Thrush Commander.



The first prototype of the aircraft flew on August 27, 1976. In September 1978, the aircraft was given certification to fly in Poland. Certifications from many countries around the world followed soon.



Many aircraft of the M-18 type and its variations can still be seen around the world. They were sold to 24 countries, over 200 are used in the USA.[1]



Most Dromaders are easy to distinguish because of their yellow color. Some 759 had been built.[1] Currently (2012) models M-18B and M-18BS are offered by PZL-Mielec

General characteristics



Crew: one, pilot

Capacity: one passenger, and up to 2,500 L (660 US gallons) or 2,200 kg (4,850 lb) of chemicals

Length: 9.47 m (31 ft 1 in)

Wingspan: 17.70 m (58 ft 0¾ in)

Height: 3.70 m (12 ft 1¾ in)

Wing area: 40.00 m² (430.5 ft²)

Airfoil: NACA 4416 at root, 4412 on outer wings

Empty weight: 2,710 kg[3] (5,975 lb)

Max. takeoff weight: 5,300 kg (11,700 lb)

Powerplant: 1 × WSK "PZL-Kalisz" ASz-62IR piston radial, 731 kW (980 hp)

Performance



Never exceed speed: 280 km/h (151 knots, 174 mph)

Maximum speed: 230 km/h (124 knots, 143 mph)

Stall speed: 108 km/h (59 knots, 68mph) (flaps down)

Range: 970 km (523 nmi, 602 miles)

Service ceiling: 6,500 m (21,320 ft)

Rate of climb: 6.5 m/s (1,280 ft/min)

- nine cylinder air-cooled radial aircraft engine

The Shvetsov ASh-62 (designated M-62 before 1941) is a nine-cylinder, air-cooled, radial aircraft engine produced in the Soviet Union. A version of this engine is produced in the People's Republic of China as the HS-5.

The ASh-62 was a development of the Wright R-1820 Cyclone that had been built in Russia under licence as the Shvetsov M-25, the main improvements including a two-speed supercharger and a more efficient induction system. Power was increased from the Cyclone's 775 hp to 1,000 hp. First run in 1937, licenced versions are still in production by WSK "PZL-Kalisz" in Poland as the ASz-62 (as of 2007). The Ash-62 was also produced in China. It is estimated that 40,361 were produced in the USSR.



Polish-built ASz-62IR engines are compatible with FAR-33 requirements. Further developments in Poland are the K9-AA, K9-BA and K9-BB engines, with take-off power of 1178 hp (860 kW), indicated power 698 kW.



The M-63 was an improved version of the M-62 with power output increased to 821 kW (1,100 hp) at 2,300 rpm for takeoff and 671 kW (900 hp) at 2,200 rpm at 4,500 m (14,764 ft) due to a greater compression ratio of 7.2:1 and a higher redline.



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