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Aviation History
1931
1931 - 0898.PDF
FLIGHT, AUGUST 21, 1931 of 4.5 m. (14 ft. 9 in.), a width of 1.5 m. (4 ft. 11 in.), and an average height of 1.7 m. (5 ft. 7 in.). When the machine is used as a freight-carrier, the whole of the cabin space is available, while part of the interior of the wing roots can also be used for the stowage of goods. Behind the cabin is a. lavatory, the door of which is so arranged that when the machine is on the ground nearly all of the lavatory space becomes available for entering and leaving the cabin. An undercarriage of the " split " type is used. The telescopic legs are anchored at their upper ends to the wing, and springing is by compres- sion rubber blocks. Wheel- brakes are fitted, and instead ol the tail skid there is a castor-action tail wheel with Goodyear low-pressure tyre. The engine fitted as standard on the A38 " Mowe " is a Siemens " Jupiter " of 500 h.p., with propeller reduction gear. Other engines, such as IN FLIGHT: The Focke-Wuif A38 " Mowe." Themachine shows the usual wing plan form adopted by this firm from the Zanonia seed leaf. the BMW VI or the Siemei s Sh. 20, can be fitted if d-- sired. The petrol tanks are housed in the leading edge of the wings, and have a capacity of 400 litres (88 gallons) each. Normally the tanks are not filled to capacity, but carry in all some 110 gallons (55 gallons each), which gives a range of 465 miles (about 4J hours). If the tanks are filled the range is correspond- ingly increased, but the pay load reduced. Fuel supply to the engine is by direct gravity feed. From the fact that the Ever- ling " High-speed Figure " has a value of 18.3, it is seen that the minimum drag is fairly low, while the ratio of gross weight to tare weight is 1.63, which is about normal for a machine of this type, certainly not exceptionally high for a machine with a relatively high wing loading. In the table below will be found all the main data relating to the " Mowe." THE COCKPIT: View from the forward luggage com-partment, showing dual controls, etc. Length o.a. Wing span Height Wing area FOCKE-WULF A38 "MOWE" Siemens " Jupiter " VI, 500 h.p. Dimensions . . 50 ft. 6 in. (15,4 m.). . . 65 ft. 7 in. (20,0 m.). . . 17 ft. 5 in. (5,3 m.). .. 673 sq. ft. (62,5 m.2). Weights Weight of machine bare Equipment Tare weight . . Non-paying load, 1,408 lb. (640 kg.) :— Pilot Engineer Wireless operator Petrol (4 A hours) Oil . . " . . 4,840 1b. (2 200 kg.). 1,100 1b. (500 kg.). 5,940 1b. (2 700 kg.). 176 1b. (80 kg.). 176 1b. (80 kg.). 176 1b. (80 kg.). 792 lb. (360 kg.). 881b. (40 kg.). Paying load, 2,330 1b. ' kg.) :— Ten passengers Luggage and freight Total load Gross weight . . Wing loading. . Power loading Maximum speed Cruising speed Landing speed Absolute ceiling Service ceiling (1 060 .. 1,760 1b. (800 kg.). .. 572 lb. (260 kg.). . . 3,7381b. (1 700 kg.). .. 9,678 1b. (4 400 kg.). .. 14-4 1b./sq. ft. (70,3kg./m.: .. 18'9 lb./h.p. (8,6 kg./h.p.) Performance . . 126 m.p.h. (204 km./hr.). . . 104 m.p.h. (168 km./hr.). 47 m.p.h. (75 km./hr.). .. 11,500 ft. (3 500 m.). .. 10,200 ft. (3 100 m.). Climb times :— 3,280 ft. (1 000 m.) in 7-8 minutes. 6,560 ft. (2 000 m.) in 18-6 minutes. 9,840 ft. (3 000 m.) in 37-3 minutes. Ratio gross weight : tare weight .. 1-63 Everting " High-speed figure " .. 18-3 844
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