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Aviation History
1924
1924 - 0787.PDF
DECEMBER 18, 1924 '18 K ^ s ^ K ^ ^ Two more Dewoitines : In the foreground the light mono plane with 6-cylinder Vaslin engine, and behind it the D.l single-seater fighter all-metal monoplane with 300 h.p. Hispano- Suiza. S> Si 58 X gunner, who also serves a third machine-gun firing through the floor of the rear cockpit. Camera and wireless outfit are carried. Constructionally, the C.99 is of perfectly normal type and does not call for any comment. The main dimen sions, etc., are :—Length, o.a., 9-7 m. (31 ft. 10 in). Span : upper plane, 14 m. (45 ft. 11 in.) ; lower plane, 12-75 m. (41 ft. 10 in.) ; wing areaj 48 sq. m. (516 sq. ft.). Weight, empty, but including water, 1,175 kgs. (2,585 lbs.) ; weight of fuel, 255 kgs. (560 lbs.) ; useful load, 400 kgs. (880 lbs.). Total loaded weight, 1,830 kgs. (4,025 lbs.). Speed at ground level, 200 km./h. (125 m.p.h.). The only other new machine on view, and of that only the front portion of the fuselage is shown, is the Caudron C.81, a very large three-engined cabin machine. It may be remem bered that this is a type which has long been a favourite with the Caudron firm, having been produced in various sizes and with different power plants. In view of the fact thai we on this side of the Channel are now beginning to turn our atten tion to the three-engined machine, it is of interest to remember that M. Caudron can probably claim the distinction oi having first introduced the type in the form in whicn it is now gener ally employed, i.e., with one engine in the nose of the fuselage and one on each side on the lower plane. The C.81 is provided with a very large saloon, and a large placard on the stand announces that the machine flew, in November of this year, from Pans to Moscow with landings at the following towns : Strasburg, Prague, Warsaw, Vilna, Minsk, and Smolensk. CONSTRUCTIONS AERONAUTIQUES E. DEWOITINE A COMPARATIVE newcomer to the French aircraft industry M. E. Dewoitine, whose experimental works and offices are now at Chatillon-sous-Bagneux (Seine), while the original works at Toulouse are devoted to quantity production, is rapidly gaining a leading position among French aircraft designers. Probably the first introduction of M. Dewoitine to readers of FLIGHT dates back to the 1920 Paris aero show, when a scale model of the Dewoitine twin-engined com mercial monoplane was shown. Incidentally the same machine is, we understand, being produced as a night bomber. At this year's Paris Show M. Dewoitine is showing four machines, two of which are of the D.l C.l type, while the third is the D.7 light monoplane, and the fourth a large com mercial monoplane. The machine with which hitherto M. Dewoitine has had the greatest success is the all-metal single-seater fighter monoplane, the D.l C.l. Examples of this machine have been supplied to the French and to many foreign govern ments, and we learn that recently the Italian government has placed an order for 150 of these machines. The Dewoitine D.l C.l is a thick-wing strut-braced parasol monoplane built entirely of metal, and is fitted as standard with the 300 h.p. Hispano-Suiza engine. A slightly different version, fitted with French-built Bristol " Jupiter " engine is known as the D.9 C.l. The fuselage is of elliptical section and is built entirely of Duralumin, even to the covering SOME DEWOITINE DETAILS: On the left is shown the manner in which the famous French designer solves the problem of a detachable cantilever tail plane spar, and on the right the nose of the Dewoitine light monoplane, with six-cylinder Vaslin water-cooled engine. The cowling over the engine has been omitted. Note the nose radiator.
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