PAC Fletcher Totally Explained

Everything about Pac Fletcher totally explained

The PAC Fletcher is an agricultural aircraft made in New Zealand. One of the first designed for aerial topdressing, the Fletcher has also been used for other aerial applications as a utility aircraft, and for sky diving.

Design and development

The PAC Fletcher was loosely based on the Fletcher FD-25 Defender, which was designed by US aeronautical engineer and light aircraft enthusiast John W. Thorp, and originally conceived in 1951 as a STOL light attack aircraft. The prototype Defender was built by Fletcher Aviation in California and first flew in 1953. A few Defenders were later built in Japan.
   At the time New Zealand top dressing operators were in the U.S. seeking a replacement for war surplus De Havilland Tiger Moths which formed the backbone of the industry. Thorp and Wendell Fletcher proposed the FU-24 agricultural aircraft, which incorporated many elements of the Defender. The operators gathered a hundred orders off the drawing board, founded a company, Air Parts, to assemble the type, and Cable Price Corporation funded two prototypes with the New Zealand Meat Producers Board acting as financial guarantor. The first prototype flew on 14 June 1954 in the United States, then was disassembled for shipment to New Zealand, together with the (unflown) second prototype. The original prototype had a 225 hp engine and open cockpit. Subsequent aircraft had enclosed cockpits and 260 to 310 hp Continental engines.
   The next 70 aircraft were delivered to New Zealand in kit form and assembled at Hamilton airport. From 1961 full production was undertaken locally, by Air Parts, later by AESL and currently Pacific Aerospace. From the 90th aircraft this was as the Mark II, with detail improvements and the option of dual controls.
   After the 257th aircraft the engine was changed to a 400 hp Lycoming horizontally opposed eight-cylinder engine (over a hundred earlier aircraft were re built and re engined by the factory). Some Fletchers have also flown with V-8 truck engines. In 1967 a PT6 turboprop version was built by the factory, a 530 hp Garrett TPE 331-powered version followed in 1968 and a 665 hp Garret powered version in 1971. Several others were converted aftermarket with these or Walter turbines, (including the first prototype, which still flies, with a 500 hp PT6). However Pacific Aerospace decided the Fletcher was reaching the limits and designed the larger and stronger PAC Cresco, which has a very similar appearance and shares some components. For several years production of the two continued side by side. New Fletchers remain nominally available from the manufacturer, although no new aircraft have been built since a batch of 5 for Syria was completed in 1992. The manufacturer has rebuilt a number of older aircraft.
   The Fletcher is a conventional low-wing monoplane with tricycle undercarriage, side-by-side seating in front of the wing and hopper and pronounced dihedral on the outer wing panels. A door aft of the wing's trailing edge on the port side allows access to a cargo compartment. The Fletcher's airframe is constructed entirely of aluminium, heavily treated to prevent corrosion.
   Although Fletcher was originally the name of the manufacturer in the U.S., and the aircraft was called the FU-24, over time the type has become simply known as the Fletcher. Fletchers have been sold to most parts of the world, although they're rare in Europe and the US. Large government orders came from many developing countries, including Thailand, Syria, Iraq and Sudan.

Variants

FU-24 : Single-seat agricultural top dressing aircraft.
FU-24A Utility : Six-seat utility transport aircraft. One prototype built in the United States.
FU-24-950 : Two-seat agricultural top dressing aircraft. Also known as the Task Master in the United States.
FU-24-954 : Improved version.
Pegasus 1 : Military version developed by Frontier Aerospace, of Long Beach, California.

Specifications (FU-24)

General characteristics

Crew: Usually 1, though the cockpit can seat two. The FU-24A has dual controls. With the hopper removed the aircraft can seat 5-6 passengers in a utility configuration.

Length: 31 ft 10 in (9.70 m)

Wingspan: 42 ft (12.81 m)

Height: 9 ft 4 in (2.84 m)

Wing area: 294 sq ft (27.3m2.)

Empty: 2620 lb (1188 kg)

Loaded: 5430 lb (2465 kg)

Powerplant: Standard production 1 x Continental 260 hp (IO-470-D) - 310 hp, or Lycoming 400 hp air-cooled horizontally opposed piston engine.

Performance

(with 400 hp Lycoming)

Maximum speed: 233 km/h

Cruising speed: 209 km/h

Range: 700 km.

Service ceiling: 16,000 ft.

Rate of climb: 805 ft/min (with 260 hp Continental)

Maximum speed: 143 mph (230 km/h)

Cruising speed: (75% power) 127 mph (204 km/h)

Range: 371 miles (597 km)

Service Ceiling: 17,000 ft (5182 m)

Rate of Climb: 900 ft/min (274 m/min)Further Information

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