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Aviation History
1921
1921 - 0858.PDF
engines have been installed to ensure a larger reserve of power —especially when flying on one engine—and a higher speed. The twin floats are of the U.S. Naval Air Service type, and are mounted immediately below the engines. The principal characteristics of the " F.P.2 " are .— - Span .. .. '.'. .. 51 ft. 5 ins. Overall length \ . .. 36 ft. 10 ins. Overall height .. .. 14 ft. Gap 7 ft. 8* ins. Incidence .. .. '_.•---••' 20 Dihedral .. ..' ..* 20 Wing section .. ....... U.S.A. 27. Wing area ... ... .. 668 sq. ft. Area of aileronsArea of tail plane Area of elevatorsArea of rudders (3) Area of fins (3)Weight empty Weight loadedWeight/sq. ft. Weight/h.p.Speed range .. Climb in 10 minsTake off Range DECEMBER 29, 192* 88 sq. ft. 53-8 sq. ft. 29 sq. ft. 28-7 sq. ft. 20-8 sq. ft. 5,726 lbs. 7,588 lbs. 11 -3 lbs. 9 lbs. 63-120 m.p.h. '-i"--r; 5,000 ft. 22 sees. 325 mile° at 90 m.p.h-. THE fOKKER "F.IV .: A Dutch 1922 Model WHILE the Fokker " F.III " has, undoubtedly, done excellentwork on the London-Amsterdam service during the past year, it is expected that, as people develop the air habit, the order to meet these anticipated requirements that the Fokker" F.IV " has been designed. As will be seen from the accompanying illustrations, demand for a greater number of passengers will necessitate the " F.IV " resembles in general outline the " F.III," somewhat larger machines for next year's air lines. It is in of which it is approximately a geometrical enlargernentr The Fokker " F.IV."—Three-quarter front view. - SPAN 8T4V LENGTH 49'2V HEIGHT 11'7%"' MAX. CHORD 14'9rr FOKKER F.IV. 380 H.P. Rolls Royce, 400 H.P. Liberty or 450 H.P. Napier Lion .Engi The Fokker "F.IV."—General arrangement drawings. 858
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