The Caudron C.39 was a French three-engined biplane with a cabin for six passengers when the aircraft was equipped as a landplane or four passengers when on floats. It was flown with some success in competitions in 1920 and 1921.
17-527: C39 or C-39 may refer to: Vehicles [ edit ] Aircraft Caudron C.39 , a French passenger biplane Cessna C-39 , an American civil utility aircraft Douglas C-39 , an American military transport aircraft Ships HMS Devonshire (C39) , a County-class cruiser of the Royal Navy Surface vehicles Alfa Romeo Racing C39 , an Italian Formula One car GE C39-8 ,
34-548: A 97 kW (130 hp) Clerget 9B nine cylinder rotary engines about halfway between the wings. Each wing-mounted engine was in a long, cylindrical cowling , open at the rear. The third engine, another cowled Clerget 9, was in the nose; behind it the fuselage had a square section. The pilot and engineer had an open cockpit with its windscreen immediately under the wing leading edge . The passenger cabin, 2.40 m (7 ft 10 in) long, 1.30 m (4 ft 3 in) wide and 1.45 m (4 ft 9 in) high,
51-422: A diesel electric locomotive Marshall C39 , a British bus Other uses [ edit ] C39 road (Namibia) Caldwell 39 , a planetary nebula King's Gambit , a chess opening [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination. If an internal link led you here, you may wish to change
68-405: A series of multi-engined civil passenger transport biplanes of similar design but increasing size and engine power, the C.33 , C.37 , C.39, C.43 and C.61 . The C.39 and C.43 shared the same airframe but had three and five engines respectively. The C.39 was a three-bay biplane with fabric-covered , rectangular-plan wings mounted without stagger . The lower wing had dihedral outboard of
85-460: Is an aerodynamic definition, the second a structural one. As an example of the distinction, during a tailslide , from an aerodynamic point of view, the trailing edge becomes the leading edge and vice versa but from a structural point of view the leading edge remains unchanged. The structural leading edge may be equipped with one or more of the following: Associated terms are leading edge radius and leading edge stagnation point . Seen in plan
102-426: The C.39 had a fixed tailskid undercarriage . There were pairs of main wheels mounted on single axles attached at their centre to a longitudinal bar held under the engine at each end on short, forward-raked V-struts. To prevent nose-overs, there was a fifth wheel mounted under the nose. The wheels could be replaced by flat-bottomed floats, each fixed to the fuselage by two pairs of inverted W- struts , one to each side of
119-516: The air ahead of the wings can cause extreme heating of the leading edge. Heating was a major contributor to the destruction of the Space Shuttle Columbia during re-entry on February 1, 2003. When sailing into the wind, the dynamics that propel a sailboat forward are the same that create lift for an airplane. The term leading edge refers to the part of the sail that first contacts the wind. A fine tapered leading edge that does not disturb
136-452: The engines; it had a smaller span than the upper one which carried the ailerons , aerodynamically balanced by overhanging extensions beyond the tips. The wings were joined by vertical pairs of interplane struts , the forward members attached near the leading edges , and the centre section was supported by similar, shorter cabane struts from the upper fuselage . The inner bay was defined by two close pairs of leaning interplane struts, with
153-412: The float, assisted by an inverted V-strut from the inside edge to the wing root. Though in floatplane configuration the C.43 sat level over the water, the tailskid was joined by a small, cylindrical float to protect the tail at take-off. In either configuration the undercarriage track was 5.0 m (16 ft 5 in). The date of the first flight, made in landplane configuration, is not known. By
170-445: The flow is desirable since 90% of the drag on a sailboat owing to sails is a result of vortex shedding from the edges of the sail. Sailboats utilize a mast to support the sail. To help reduce the drag and poor net sail performance, designers have experimented with masts that are more aerodynamically shaped, rotating masts, wing masts, or placed the mast behind the sails as in the mast aft rig . This aviation -related article
187-549: The leading edge may be straight or curved. A straight leading edge may be swept or unswept, the latter meaning that it is perpendicular to the longitudinal axis of the aircraft. As wing sweep is conventionally measured at the 25% chord line an unswept wing may have a swept or tapered leading edge. Some aircraft, like the General Dynamics F-111 , have swing-wings where the sweep of both wing and leading edge can be varied. In high-speed aircraft, compression heating of
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#1732854800524204-420: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=C39&oldid=1088390362 " Category : Letter–number combination disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Caudron C.39 Between 1919 and 1922, Caudron built
221-491: The same competition in April the following year and was much more successful. Flown again by Maïcon, it won first prize over the 492 km (306 mi) Monaco-Ajacco-Monaco circuit in almost the same time as in 1920. it also won over the shorter Monaco- Cannes - San Remo and return course, during which it reached an altitude of 2,000 m (6,560 ft) in 45 minutes carrying 200 kg (440 lb) of ballast. Their attempt in
238-466: The speed trial was cut short by a fire. With smoke in the cockpit Maïcon lost control and sideslipped into the sea near Saint-Raphaël . No one was hurt and the C.39 was recovered, though seriously damaged. By June 1921 it was a landplane again and competing in the Grand Prix d'Aéro-Club de France. Pilot Maïcon and flight engineer Courcy were forced to land near Bordeaux with an engine problem. After it
255-402: The spring of 1920 it was flying with floats, for it competed with the C.33, C.43 and another French aircraft as well as three from Italy in the Grand Prix de Monaco , a seaplane event held between 18 April and 2 May. During the contest Maïcon flew it from Monaco to Ajaccio and back in 8 hrs 10 min, but like the other civil aircraft taking part the C.39 was eliminated. The C.39 returned to
272-442: Was lit by six small windows on each side and was accessed through a starboard-side door. Behind the wings the fuselage tapered gently to a broad, triangular fin which carried a vertical-edged unbalanced rudder that reached down to the keel. The fabric-covered tailplane had a straight leading edge with angled tips, and was mounted on top of the fuselage so its elevators had a notch for rudder movement. In landplane configuration
289-429: Was repaired, long grass prevented their take-off and they retired, though only after what L'Aérophile described as a "magnificent debut". Data from L'Aéophile 29 (Supplement), June 1924, p.XVIII General characteristics Performance Leading edge The leading edge is the part of the wing that first contacts the air; alternatively it is the foremost edge of an airfoil section. The first
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