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Aviation History
1944
1944 - 0283.PDF
FEBRUARY IOTH, 1944 FUG HI 143 An ingenious retractable lower rear gun mounting. The pilot lies down when firing and uses a no-deg. periscopic sight. The cone of view is about 42 deg. illustrated by the sketches above and at the foot of this page. Normal bomb load is 600 kg. (1,320 lb.), but can be in creased to a maximum of 1,000 kg. (2,200 lb.). Four bomb ^racks are provided under the inn,er wing portions, and in addition there is one in the rear portion of each engine nacelle, and a bomb bay with two racks in the fuselage. The latter is designed to take several bombs of various sizes. The external bombs may comprise two of 500 kg. each, four of 250 kg. each (total 1,000 kg.), or four of 200 kg. each or four of 150 kg. each. When some of the bombs are carried internally (in fuselage and engine nacelles) the bomb load may comprise ten 100-kg. bombs (six internal and four external), or half that weight in the same distribution. Bomb release is by an electric control on a central pcinel, allowing for dropping bombs singly at any predetermined interval or in salvos. The actual release of the bombs is not, however, by electric solenoids but by electrically fired cart ridges which operate pistons that in turn release the hooks. The mechanism is said to be very light and to be capable of removal in a moment. Bomb hoists are installed in the machine. Accommodation and Power Plant -The crew of three are accommodated as follows : in front are pilot and wireless operator, normally seated back-to- back. The wireless operator can dive under the pilot's seat and lie down in a prone bombing position. When working the lower gun, the rear gunner lies down and sights his gun through the periscopic sight mentioned above. Engine installation is orthodox in the PE-2. The two M-105 R (the R indicates leduction gearing) are of 12-cyl. vee type, liquid-cooled, with an angle of 60 deg. between the cylinder banks. The bore is 148 mm. and the stroke 170 mm., giving a capacity of 35 litres. Designed for 95- octane fuel, the compression ratio is fairly high (7:1) and the specific power is 32 b.h.p. per litre capacity. The overall length of the engine is 2,027 mm. (79.8 in.), the height 960 mm. (37.8 in.), and the width 777 mm. (30.6 in.). The weight is 575 kg. (1,265 irj.), an<i specific weight 1.15 lb. /h.p. The take-off power is 1,100 b.h.p. at 2,600 r.p.m., and a boost of 1.29 atu (approximately 3.5 lb./sq. in. In this drawing by Herr S. Sason the figures refer to the following items : 1, Plexiglass nose ; 2, bomb aimer's optical flat ; 3, starboard fixed 12.7 mm. cannon ; 4, wheelbrake lever ; 5, armour plate behind pilot ; 6, rudder pedals ; 7, elevator trimmer ; 8, pilot's seat ; 9, wireless operator's seat ; 10, pitot tube ; 11, aerial mast ; 12, upper moveable machine gun ; 13, window ; 14, lower moveable machine gun ; 15, ammunition box ; 16, retractable gun mounting ; 17, periscopic sight for 16 ; 18, tailwheel operating mechanism ; 19, tailwheel jack ; 20, elevator lay shaft ; 21, elevator crank levers ; 22, push-pull rod for rudder con trol ; 23, tailwheel shock absorber strut ; 24, elevator push-pull rod ; 25, rudder push-pull rod ; 26, cartridge belt guide ; 27, fuel tanks ; 28, radiator shutter ; 29, radiator ; 30, inert-gas cylinders ; 31, radiator shutter ; 32, radiator shutter ; 33, fuel tanks ; 34, aileron trimming tab ; 35, aileron ; 36, undercarriage radius rods ; 37, radiator air duct ; 38, undercarriage bracing ; 39, bellows sleeve ; 40, carburettor air intake ; 41, engine mounting ; 42, radiator air intake ; 43, oil filler cap ; 44, oil tank ; 45, oil cooler ; 46, air intake to oil cooler ; 47. carburettors ; 48, louvre ; 49, tank for hydraulic fluid ; 50, radiator air intake.
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