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A New Commercial Dewoitine

A New Commercial Dewoitine AIRCRAF T ENGINEERING May, 1933 On e of the Designs Competing for Replacement Contracts on the Air France Lines H E new Dewoitine three-engined trans­ por t machine, known as the D-620, is one of several new monoplanes for commercial service which were built a s part of th e 1935 constructional programme in France. Main Plane The D-620 is a n all-metal low wing monoplane fitted with three Gnome-Rhone 14 Krsd air- cooled engines, and has accommodation for a crew of three and thirty passengers. Th e wing is tapered in form and in thickness and has rounded tips. It is built up round a single spar and has a caisson on either side of the spar in which are carried the fuel tanks. The outer sections can be dismantled in six parts, in addition to a centre section integral with the fuselage. The covering is in sheet duralumin. The trailing edges have long, narrow-chord ailerons and flaps. Monocoque Fuselage emergency exits, a bar, a lavatory , and , rightaft , a of chrome molybdenum steel attached to the The fuselage is of monocoque construction second baggage hold. There are two doors giving single spar and fitted with Messier shock I t is divided into two sections, the forward of access to the cabin, one of which is primarily absorbers. The retracting mechanism is con­ which includes, from front to rear, a baggage intended for emergencies. The seats are trolled by compressed air, with emergency hold, the pilots' cockpit, with dual controls, arranged in rows of three, with two on the hand gear. th e radio operator's post and a forward cabin starboard and one on the port side with a for nine passengers. This passenger cabin has passageway between. Tai l Surfaces two emergency exits in the sides. Th e swivelling tail wheel is fitted with Th e Large Cabin Retractable Undercarriage a n oleo-pneumatic shock absorber. The tail The rear section of the fuselage contains a The undercarriage is retractable and is in is of normal monoplane type of all-metal twenty-one passenger cabin, also fitted with two independent units, under the wing engines, construction, the stabilizer being braced to the lower part of the fuselage on cither side by two short duralumin struts. Power Units Th e three Gnome-Rhone 14 Krsd engines are mounted on chrome molybdenum steel tube s with steel bracing members. They are enclosed in N.A.C.A. cowlings and are fitted with Viet 250 type compressor starters. Fuel and Oil Fuel is carried in four tanks, two in each wing, their total capacity being 2,500 litres (528 gals.). Oil is carried behind each engine in 30-litre tanks . Landing Lights The D-620 is completely equipped for night flying and carries two swivelling landing lights under the forward part of the fuselage, which can be retracted when not in use. PRINCIPAL CHARACTERISTICS. Span .. .. .. .. .. 29·36 m. (96 ft. 4 in.) Length .. .. .. .. 23·59 m. (77 It . 4 in.) Height .. .. .. .. 5·725m. (18 ft. 10in.) Area .. .. .. .. .. 97·34 sq.m . (740 sq.ft.) Gross weight.. .. .. .. 11,8G0kgs. (26,I461b.) Weight of fuel .. .. .. 1,300 kgs. (2,8661b.) Useful load .. .. .. .. 3,660 kgs. (8,070 lb.) Tare weight .. .. .. ..6,900 kgs. (I5,2101b.) Cruising speed at 1,500 metres .. 270k.p.h.(172m.p.h.) Maximum speed at ground level .. 310k.p.h.(I93m.p.h.) Maximum speed at 2,000 metres .. 350 k.p.h.(217 m.p.h.) Landing speed .. .. .. 102 k.p.h, (63 m.p.h.) ENGINES. Gnome-Rhone 14 Krsd half-supercharged and geared. Double row cylinders, air cooled. Power on ground .. .. . 810 h.p. Power at 2,000 metres .. .. 880 h.p. Equivalent power on ground .. 1,063 h.p. Number of cylinders .. .. 14 Weight empty .. .. ..543 kgs. (1,197lb.) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

A New Commercial Dewoitine

Aircraft Engineering and Aerospace Technology , Volume 8 (5): 1 – May 1, 1936

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb030046
Publisher site
See Article on Publisher Site

Abstract

AIRCRAF T ENGINEERING May, 1933 On e of the Designs Competing for Replacement Contracts on the Air France Lines H E new Dewoitine three-engined trans­ por t machine, known as the D-620, is one of several new monoplanes for commercial service which were built a s part of th e 1935 constructional programme in France. Main Plane The D-620 is a n all-metal low wing monoplane fitted with three Gnome-Rhone 14 Krsd air- cooled engines, and has accommodation for a crew of three and thirty passengers. Th e wing is tapered in form and in thickness and has rounded tips. It is built up round a single spar and has a caisson on either side of the spar in which are carried the fuel tanks. The outer sections can be dismantled in six parts, in addition to a centre section integral with the fuselage. The covering is in sheet duralumin. The trailing edges have long, narrow-chord ailerons and flaps. Monocoque Fuselage emergency exits, a bar, a lavatory , and , rightaft , a of chrome molybdenum steel attached to the The fuselage is of monocoque construction second baggage hold. There are two doors giving single spar and fitted with Messier shock I t is divided into two sections, the forward of access to the cabin, one of which is primarily absorbers. The retracting mechanism is con­ which includes, from front to rear, a baggage intended for emergencies. The seats are trolled by compressed air, with emergency hold, the pilots' cockpit, with dual controls, arranged in rows of three, with two on the hand gear. th e radio operator's post and a forward cabin starboard and one on the port side with a for nine passengers. This passenger cabin has passageway between. Tai l Surfaces two emergency exits in the sides. Th e swivelling tail wheel is fitted with Th e Large Cabin Retractable Undercarriage a n oleo-pneumatic shock absorber. The tail The rear section of the fuselage contains a The undercarriage is retractable and is in is of normal monoplane type of all-metal twenty-one passenger cabin, also fitted with two independent units, under the wing engines, construction, the stabilizer being braced to the lower part of the fuselage on cither side by two short duralumin struts. Power Units Th e three Gnome-Rhone 14 Krsd engines are mounted on chrome molybdenum steel tube s with steel bracing members. They are enclosed in N.A.C.A. cowlings and are fitted with Viet 250 type compressor starters. Fuel and Oil Fuel is carried in four tanks, two in each wing, their total capacity being 2,500 litres (528 gals.). Oil is carried behind each engine in 30-litre tanks . Landing Lights The D-620 is completely equipped for night flying and carries two swivelling landing lights under the forward part of the fuselage, which can be retracted when not in use. PRINCIPAL CHARACTERISTICS. Span .. .. .. .. .. 29·36 m. (96 ft. 4 in.) Length .. .. .. .. 23·59 m. (77 It . 4 in.) Height .. .. .. .. 5·725m. (18 ft. 10in.) Area .. .. .. .. .. 97·34 sq.m . (740 sq.ft.) Gross weight.. .. .. .. 11,8G0kgs. (26,I461b.) Weight of fuel .. .. .. 1,300 kgs. (2,8661b.) Useful load .. .. .. .. 3,660 kgs. (8,070 lb.) Tare weight .. .. .. ..6,900 kgs. (I5,2101b.) Cruising speed at 1,500 metres .. 270k.p.h.(172m.p.h.) Maximum speed at ground level .. 310k.p.h.(I93m.p.h.) Maximum speed at 2,000 metres .. 350 k.p.h.(217 m.p.h.) Landing speed .. .. .. 102 k.p.h, (63 m.p.h.) ENGINES. Gnome-Rhone 14 Krsd half-supercharged and geared. Double row cylinders, air cooled. Power on ground .. .. . 810 h.p. Power at 2,000 metres .. .. 880 h.p. Equivalent power on ground .. 1,063 h.p. Number of cylinders .. .. 14 Weight empty .. .. ..543 kgs. (1,197lb.)

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: May 1, 1936

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