AEROPLANES



A SIAI Marchetti SF260 from the Turkish Air Force




De Haviland DHC2 Beaver




A SIAI Marchetti SF260 from the Turkish Air Force




Pilatus PC6 Turbo Porter




Beaver cocpit




Cocpit of a SF260 restored by Aerotech in the Philipines.




PC6 cocpit

De Haviland DHC2 Beaver must be the moust famoused bush plane ever. In 1946 De Haviland asked pilots and maintenace people ho wthey wanted a perfect bush plane to be. Then they constructed it. Officially the last ones where made in 1966, but since then places like Kenmore and other specialised in dismantling them, improving them and finaly reconstruct them. This way the Beaver has been improved all the time. They operate on skiis, floats, wheels and on amphibian floats. The radial engine Beavers had originally two blade propeller, but later several changed to three blades.

The Beaver is a solid construction, cabapel of short take off and landing distances.

Mk I - One 335kW (450hp) Pratt & Whitney R985 Wasp Junior nine cylinder radial piston engine driving a two blade variable pitch Hamilton Standard propeller.

Performance: Max speed 225km/h (121kt), max cruising speed 217km/h (117kt), normal cruising speed 201km/h (109kt). Initial rate of climb 1020ft/min. Service ceiling 18,000ft. Max range with reserves 1252km (676nm).

Mk III - One 430kW (578eshp) Pratt & Whitney Canada PT6A6 or PT6A20 turboprop driving a three blade constant speed Hartzell propeller.

Performance: Max speed 274km/h (148kt), max cruising speed 253km/h (137kt), long range cruising speed 225km/h (122kt). Initial rate of climb 1185ft/min. Service ceiling 20,000ft. Max range with reserves 1090km (588nm).

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SIAI Marchetti SF260 by italian master aircraft designer Stelio Frati is aimed at Air Forces primerely as a trainer for military pilots. It is said to fly both close to how Spitfire fly, and other pilots report it to behave much like a jet fighter. Side rudder is almost not needed. The SF260 is capable of aerobatics and have a high cruise speed. Abowe it is well known for its outstanding handling. As the aeroplane is mainly aimed at training coming fighter pilots, the cocpit lay out is for the pilot to fly the aircraft from the right seat, operating the stick with the right hand and the throttle with the left hand as it would be i a fighter jet.

The SF260 first flew 15 July 1964. Then it was powered by a 250 hp Lycoming O-540-AID engine.The ones delivered now has Lycoming O-520 with 260 hp. There is also a TP version = turbine powered.

Powerplant: one 260-hp (194-kW) Lycoming O-540-E4A5 flat-six piston engine

Performance: maximum speed 215 mph (347 km/h) at sea level; maximum cruising speed 205 mph (330 km/h) at 10,000 ft (3050m); initial climb rate 1,791 ft (546 m) per minute; service ceiling 19,000 ft (5790 m); range with maximum fuel 1,274 miles (2050 km)

Weights: empty 1,664 lb (755 kg) maximum take-off 2,430 lb (1102 kg)

Dimensions: span over tiptanks, 27ft 43/4 in (8.35 m ); height 7 ft 11 in (2.41 m); wing area 108.7 sq ft.

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The Swiss Pilatus PC6 Turbo Porter has exceptional STOL performance and low speed handling and have sold strongly on the strength of its performance. This must be the closest it is possible to get to a helicopter with a fixed wing aircraft. It can even "descend" with the nose pointed 90 degress down with full flaps extended and the prop in reverse thrust.
Most PC6's are turbine powered, but there are also some piston powered.
The aircraft flew for the first time in May 1961.

PC6H2 - One 255kW (340hp) Lycoming GSO480B1A6 geared and supercharged six cylinder piston engine driving a three blade constant speed propeller.
PC6/B2H4 - One 410kW (550shp) Pratt & Whitney Canada PT6A27 turboprop.

Performance: PC6H2 - Max speed 233km/h (126kt), max cruising speed 216km/h (117kt), economical cruising speed 190km/h (103kt). Initial rate of climb 550ft/min. Service ceiling 17,400ft. Max range with no reserves 1500km (810nm). PC6/B2H4 (Utility version) - Economical cruising speed 213km/h (115kt). Initial rate of climb 940ft/min. Max operating ceiling 25,000ft. Range with max payload at economical cruising speed and no reserves 730km (395nm), range with max internal fuel 925km (500nm), with external fuel 1610km (870nm).

Weights: PC6H2 - Empty 1250kg (2755lb), max takeoff 2200kg (4850lb). PC6/B2H4 - Empty 1130kg (2491lb), max takeoff 2800kg (6173lb).

Dimensions: PC6H2 - Wing span 15.14m (49ft 8in), length 10.20m (33ft 6in), height tail down 3.20m (10ft 6in). Wing area 28.8m2 (310sq ft). PC6/B2H4 - Wing span 15.87m (52ft 1in), length 10.90m (35ft 9in), height 3.20m (10ft 6in). Wing area 30.2m2 (324.5sq ft).

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