Aerospatiale N-262 Fregate & Mohawk 298
Country of origin :
France
Powerplants :
Fregate - Two 843kW (1130shp) Turboméca Bastan VIIC turboprops driving three blade variable pitch Ratier Figeac FH.146 propellers.
Mohawk 298 - Two 880kW (1180shp) Pratt & Whitney Canada PT6A45 turboprops driving five blade variable pitch Hamilton Standard props.
Performance :
Fregate - Max level speed 418km/h (225kt) at 20,000ft, economical cruising speed 408km/h (220kt). Max range with full fuel and no reserves 2400km (1295nm), range with 26 pax and reserves 1020km (550nm).
Mohawk 298 - Max speed 385km/h (208kt), economical cruising speed 375km/h (203kt). Max range with full fuel and no reserves 2132km (1151nm).
Weights :
Fregate - Basic empty 6200kg (13,668lb), max takeoff 10,800kg (23,810lb).
Mohawk 298 - Empty 7030kg (15,498lb), max takeoff 10,600kg (23,370lb).
Dimensions :
Fregate & Mohawk 298 - Wing span 22.60m (74ft 2in), length 19.28m (63ft 3in), height 6.21m (20ft 4in). Wing area 55.0m2 (592sq ft).
Capacity :
Flightcrew of two and max seating for 29 passengers at three abreast. Standard seating layout for 26 passengers.
Production :
110 of all variants of the 262 (including the Mohawk 298 and miscellaneous military orders) built.
Type :
Short range turboprop commuter airliner
History :
The original design of the N-262 dates back to the Max Holste Super Broussard project, which as the MH-260 flew for the first time on July 29 1960.
This event had been preceded by the first flight of the oneoff Pratt & Whitney Wasp piston radial powered but otherwise similar MH-250 prototype on May 20 1959. Nord built just 10 MH-260s (flown by Air Inter and Norway's Wideröe) before beginning a significant redesign of the type in 1961, with the major changes being a redesigned fuselage with a circular cross section, pressurisation and more powerful powerplants. This resulted in the Nord N-262, which first flew on December 24 1962.
Production of the N-262 consisted of four major variants, the initial production N-262A with Turboméca Bastan VIC engines; N-262B, of which only four were specially converted on request of Air Inter, also with Bastan VI engines; the N-262C Fregate with more powerful Bastan VIIC engines and greater wing span; and the N-262D Fregate, the French Air Force equivalent of the N-262C.
The merger of Nord and Sud during the N-262's production life resulted in it becoming a product of Aerospatiale from 1970.
In the late 1970s US commuter airline Allegheny Airlines - through its subsidiary Mohawk Air Services - extensively upgraded its fleet of N-262s, subcontracting the conversions to Frakes Aviation, resulting in the Mohawk 298 (the designation being derived from the FAA FAR Part 298 airworthiness regulation). The retrofit involved reengining the 262s with more powerful Pratt & Whitney Canada PT6A-45 turboprops with five blade props, new avionics and a new APU.
The first Mohawk 298 flew on January 7 1975, while the last of nine converted was completed in 1978.
Production of the N-262 ended in 1976.
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