one. Structure Evolution:
Complementing the File.27 Friendship turboprop, the F.28 Fellowship was intended to offer you pure-jet convenience, larger speeds, and minimized block moments historically affiliated with greater twins, like the BAC-111, the DC-nine, plus the 737, to regional route operators. But, following the demand from customers for elevated capability in all markets, and seeking to incorporate then-emerging technological improvements, Fokker soon envisioned a successor that will not merely infringe on the standard, small-assortment jet section, but swap a lot of its initial technology kinds.
First style research, designated P315, File.28-2, and Tremendous File.28, had been carried out in 1977 and were being centered upon the File.28-4000-the highest capacity and numerically most favored of your 6 versions, but showcased a stretched fuselage for approximately a hundred and fifteen passengers, a completely new wing, sixteen,five hundred thrust-pound engines, a Mach 0.75 cruise velocity, plus a 1,five hundred nautical mile variety. Intended plan dates, characterized by two-12 situs slot terbaik indonesia months intervals, included 1979 for the type’s start, 1981 for its to start with flight, and 1983 for its certification.
Even though powerplant progress were designed Because the First de Havilland Ghost and Rolls Royce Avon engines were introduced, While using the likes on the Spey and Spey Junior that respectively powered the BAC-111 plus the File.28, the amount of forms was continue to incredibly limited, which served as the greatest impediment to a far more modernized and impressive Fellowship successor.
Projected powerplants involved an enhanced Edition on the Rolls Royce Spey, another on the Pratt and Whitney JT10D, a scaled-down CFM-fifty six, as well as a proposed Rolls Royce RB.432. Nonetheless, their makers were possibly reluctant to launch such engines or optimized them for aircraft with larger gross weights than Fokker was thinking of.
During the celebration, these obstacles may well are getting to be chances, since nonetheless-growing demand from customers dictated even higher capacities-of about 150 passengers-on brief- to medium-assortment routes, in addition to a fuselage vast enough for 6-abreast, solitary-aisle coach seating-or just one greater than the BAC-111, DC-nine, or F.28 had supplied.
Yielding to market desire, and buoyed by new era, twenty,000 thrust-pound CFM56-3 and RB.432 turbofans, Fokker elected to deviate from its 5-across seating conventional and offer a sixth just one that has a new proposal specified File.29, which would enter the ranks of other 2nd-technology one hundred fifty-seaters. Potential, double that with the File.28, was 138 in a 34-inch pitch or 156 in a thirty-inch pitch, and vary was foreseen as 1,seven-hundred nautical miles, While its General configuration remained identical to its smaller predecessor with two aft-mounted engines and also a t-tail in order to avoid exhaust interference with the horizontal stabilizers. The very first flight was now slated for 1983.
Because the development expenditures of this kind of an bold venture had been over and above the financial viability of a little Dutch regional aircraft company, having said that, method fact was contingent on a backlink which has a hazard-sharing spouse.
McDonnell-Douglas, in search of to supply its personal bigger-capacity, advanced DC-9 successor with its projected, a hundred and fifty-passenger Superior Technological know-how Medium Range ATMR-II proposal, approved the Fokker present and, combining it Along with the equally configured File.29, devised the McDonnell-Douglas Fokker MDF-100, supposed for 2,000 nautical mile sectors with 153 twin-course, 6-abreast travellers.
Although the t-tail was retained, its two turbofans were relocated and had been now pylon-mounted beneath and forward of your high part ratio, supercritical wing.
Inspite of its complex merits, it would only be released if ample orders could justify its goal, and In cases like this, none did, even after considerable marketing and advertising endeavours, thus forcing cancellation of both the venture and also the partnership in 1982, or 3 years ahead of the Sophisticated airliner’s supposed first flight.
McDonnell-Douglas ultimately offered its stretched fuselage MD-80 powered by refanned JT8D-209 engines and this, along with the Airbus A-320 loved ones and Boeing 737-three hundred to -five hundred series, saturated what might have been the ATMR-II’s industry.
Fokker, painstakingly mindful that technological advances were being eclipsing equally its turboprop F.27 and pure-jet F.28 regional solutions, elected to abide by its non permanent spouse’s direct by revising and enlarging its earlier presenting.
Revisiting its File.28-4000-based mostly P315 design research, it decided to include State-of-the-art engines and techniques in a very stretched-fuselage successor optimized for a hundred-passengers and thus designated “F.100,” asserting This system, in addition to that of its following-era F.50 turboprop, on November 24, 1983.
2. Fokker F.a hundred:
Featuring a light-alloy, are unsuccessful-Secure, scorching-bonded fuselage 18.ten feet lengthier compared to F.28-4000’s, it supplied, by composite construction, a 900-pound bodyweight reduction, but retained its oval passenger Home windows and tail-mounted ventral air brake, leading to a 106-foot, 7.5 inch prolonged fuselage size as well as a 116 feet, six ¾ inch All round plane length.
Two reduced baggage/cargo retains were being accessed by 3 starboard, upward-opening doors.
The seventeen-diploma sweptback wings, having a 92-foot, 1.5-inch span and eight.forty three part ratio, was centered upon the Fellowship’s, but introduced revised primary and trailing edges in addition to a higher top edge chord to improve the superior-speed buffet boundary and decrease drag. Incorporating completely driven, hydraulically actuated ailerons, double-slotted Fowler flaps, and five-panel lift dumpers forward of them, it showcased a 1,006.4-square-foot spot.