FOKKER 50 TURBOPROP REIONAL AIRLINER
The Fokker 50 is a turboprop-powered airliner, designed as a refinement of and successor to the highly successful Fokker F27 Friendship. The Fokker 60 is a stretched freighter version of the Fokker 50. Both aircraft were built by Fokker in the Netherlands. The Fokker 60 has also been used by the Royal Netherlands Air Force and now they are in service with the Peruvian Naval Aviation.
HISTORY
The Fokker 50 was the successor to Fokker's highly successful and long running F-27 Friendship.
Fokker announced it was developing the 50 seat Fokker 50, together with the 100 seat jet powered Fokker 100, in November 1983. The Fokker 50 is based on the fuselage of the F-27-500 Friendship, but incorporates a number of key design changes. Foremost of the improvements was the new generation Pratt & Whitney Canada PW125 turboprops driving advanced six blade props, giving a 12% higher cruising speed and greater fuel economy, and thus range. Other improvements include new avionics and an EFIS glass cockpit, limited use of composites, small `Foklet' winglets, and more, squared, main cabin windows.
Two prototypes were built based on F-27 airframes (despite the fact that over 80% of Fokker 50 parts are new or modified), the first flying on December 28 1985. The first production aircraft flew on February 13 1987, certification was granted in May 1987, and first customer delivery, to Lufthansa Cityline, was during August that year.
The basic Fokker 50 production model is the Series 100. With three, instead of four doors, the Series 100 is designated the Series 120. The hot and high optimised Series 300 has more powerful PW127B turboprops, and was announced in 1990. It has higher cruising speeds and better field performance, particularly at altitude.
The only significant development of the Fokker 50 to see the light of day was the Fokker 60 Utility, a stretched utility transport version ordered by the Royal Netherlands Air Force. Fokker built four for the Netherlands air force and looked at offering a passenger variant. The Fokker 60 was stretched by 1.62m (5ft 4in).
Fokker collapsed due to financial problems on March 15 1996 and the last Fokker 50 was delivered to Ethiopian Airlines in May 1997.
DESIGN
The Fokker 50 was based on the stretched F27-500 airframe, but with a larger number of smaller windows in the fuselage and a two-wheel nose gear.
Basic construction of the fuselage, wings and empennage (tail) remained unchanged apart from strengthening the various sections where required. The wing was equipped with upturned ailerons and wingtips, effectively acting as wing endplates or winglets.
The major design change from the Fokker F27 was in the engines, and in equipping the aircraft with an electronic flight and engine-management system. The original Rolls-Royce Darts in various marks of basically 1,268-1715 kW (1,700-2,300 hp) was replaced with two more fuel efficient Pratt & Whitney Canada PW124 powerplants of 1,864 kW (2,500 hp) each, driving six-bladed Dowty Rotol propellers.
The Fokker 50 can carry up to 62 passengers over a range of 2,000 km (1,243 mi, 1,080 nmi) at a typical speed of 530 km/h (329 mph, 286 kn), a 50 km/h (31 mph, 27 kn) increase over the Fokker F27.
VARIANTS
Interior of a Fokker 50 of Skyways Express
Fokker 50
F27 Mark 050
Marketed as the Fokker 50 (or sometimes referred to as the Fokker 50-100), based on the F27 Mark 500 with two Pratt & Whitney Canada PW125B or PW127B turboprop engines with six-bladed propellers, updated systems and cockpit instrumentations, increased use of composite structure, double the number of windows, change from pneumatic to hydraulic systems and addition of an electronic engine and propeller controls and electronic flight instrument system (EFIS) and integrated warning system.[3]
F27 Mark 0502
Marketed as the Fokker 50, same as the 050 with reconfigured interior layout and change in type of aft emergency exits, six built (two for the Royal Netherlands Air Force, two for the Singapore Air Force and two for Brunei).[3]
Fokker 60
F27 Mark 0604
Marketed as the Fokker 60, same as the 0502 with an increased fuselage length (1.02 m/3.34 ft in front of wing and 0.80 m/2.63 ft aft of wing), increased design weight and introduction of a large cargo door in the forward right side of the fuselage. Two Pratt & Whitney PW127B turboprop engines, four built.[3]
OPERATORS
As of October 2012 125 aircraft are still in operational use with airlines.[4]
Fokker 50 civil operators
airBaltic Fokker 50 at Riga International Airport
Fokker 50 - Ethiopian Airlines at Lalibela airport
Aero Condor (1)
Aero Mongolia (4)
Air Astana (2)
Air Baltic (4)
Air Iceland (6)
Air Panama (2)
Alliance Airlines (6)
Amapola Flyg (12)
Aria Air (2)
Avianca (10)
Bluebird Aviation (5)
CityJet (15)
Compagnie Africaine D'Aviation (4)
Denim Air (4)
Feeder Airlines (2)
Indonesia Air Transport (3)
Insel Air (4)
Iranian Air Transport (4)
Kish Airline (4)
Mid Airlines (3)
Minoan Air (3)
Mongolian Airlines (2)
MiniLiner (2)
Pacific Royale Airways (2)
Palestinian Airlines (2)
Sky Aviation (5)
Skywest Airlines (8)
Sonair (2)
Sudan Airways (3)
Fokker 50 military and government operators
Fokker 50 - Royal Netherlands Air Force
TGFA Fokker 50
The following governments or military operators currently fly the Fokker 50 in passenger or cargo roles:[5]
Netherlands
Royal Netherlands Air Force.
Republic of China
Republic of China Air Force - as VIP transport.
Republic of China Air Force Fokker 50 for VIP transport
Singapore
Republic of Singapore Air Force - as Utility Transport Aircraft (UTA) and Maritime Patrol Aircraft (MPA).
Tanzania
Tanzania Government Flight Agency - as VIP transport
Thailand
Royal Thai Police
Former operators
Regional services were flown by Malaysia Airlines using Fokker 50s until the takeover by FlyAsianXpress and subsequently MASwings
Fokker 50 of Ansett Express at Perth Airport (mid 1990s).
Angola
TAAG Angola Airlines
Australia
Airlines of New South Wales
Ansett Australia
Flight West Airlines
Austria
Austrian Airlines/Tyrolean Airways
Brazil
Nordeste Linhas Aéreas Regionais
Rio Sul
TAM Airlines
Estonia
Estonian Air (1996–2003)
Germany
Lufthansa CityLine
Contact Air
India
Rajair
Ireland
Aer lingus
Kenya
Kenya Airways
Luxembourg
Luxair
Malaysia
Firefly
FlyAsianXpress
Malaysia Airlines
MASwings
Netherlands
KLM Cityhopper
KLM uk
Nigeria
Virgin Nigeria Airways
Norway
Busy Bee
Norwegian Air Shuttle (2000-2004)
Philippines
Philippine Airlines
Spain
Iberia/Air Nostrum
Taiwan
Formosa Airlines/Mandarin Airlines
United Kingdom
Air UK
Fokker 60 Military Operators
Peru
Peruvian Naval Aviation - 2 as Utility Transport Aircraft (UTA) and 2 as Maritime Patrol Aircraft (MPA).
FORMER OPERATORS
Netherlands
Royal Netherlands Air Force.
POWERPLANTS
Series 100 - Two 1864kW (2500shp) Pratt & Whitney Canada PW125B turboprops driving six blade Dowty propellers. Series 300 - Two 2050kW (2750shp) PW127Bs.
PERFORMANCE
Series 100 - Max cruising speed 532km/h (287kt), economical cruising speed 454km/h (245kt). Max operating altitude 25,000ft. Range with 50 passengers and reserves 2055km (1110nm), or 2822km (1524nm) for optional high gross weight version. Series 300 - Typical cruising speed 526km/h (284kt). Range with 50 passengers and reserves at high speed cruise 2033km (1097nm), or 3017km (1628nm) for high gross weight option at long range cruise.
WEIGHTS
Series 100 & 300 - Operating empty 12,520kg (27,602lb), max takeoff 19,950kg (43,980lb), or optionally 20,820kg (45,900lb).
DIMENSIONS
Wing span 29.00m (95ft 2in), length 25.25m (82ft 10in), height 8.32m (27ft 4in). Wing area 70.0m2 (753.5sq ft).
CAPACITY
Flightcrew of two. Standard seating for 50 at four abreast and 81cm (32in) pitch. Max high density seating for 58. Available with convertible passenger/freight configurations.
PRODUCTION
205 Fokker 50s built. Last machine delivered in May 1997.
SPECIFICATIONS
General characteristics
Crew: 2 (flight deck crew)
Capacity: up to 58 passengers
Length: 25.25 m (82 ft 10 in)
Fokker 60: 26.87 m (88.16 ft)
Wingspan: 29 m (95 ft 2 in)
Height: 8.32 m (27 ft 4 in)
Wing area: 70 m2 (750 sq ft)
Empty weight: 12,250 kg (27,007 lb)
zero fuel weight: 18,600 kg (41,006 lb)
Gross weight: 18,597 kg (41,000 lb)
Max takeoff weight: 20,820 kg (45,900 lb)
Fokker 60: 22,950 kg (50,596 lb)
Powerplant: 2 × Pratt & Whitney Canada PW125B turboprop engines, 1,864 kW (2,500 hp) each
Fokker 60: 2x 1,953 kW (2,619 hp) Pratt & Whitney Canada PW127B turboprop engines
Propellers: 6-bladed Dowty Rotol composite propellers
Performance
Maximum speed: 560 km/h (348 mph; 302 kn)
Cruising speed: 530 km/h (329 mph; 286 kn)
Fokker 60: 469 km/h (291 mph)
Range: 2,055 km (1,277 mi; 1,110 nmi)
Service ceiling: 7,620 m (25,000 ft)
Armament
2 × AGM-84D Harpoon missiles and radar, sonar systems (Republic of Singapore Air Force Fokker 50s)
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