FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1925
1925 - 0320.PDF
MAY 28, 1925 SPAN CHORD. . . . WING AREA .34'-6 " . 4'-3" 128 5Q.FT DARMSTADT "MOHAMED THE DARMSTADT " MOHAMED '' : General arrangement drawings. Fokkers. The engine fitted is a Siemens seven-cylinder, radial air-cooled of 70-80 h.p. The petrol tank is situated in the fuselage, and contains enough petrol for 4J hours' flight at full power. The main dimensions of the D.P.IIA are ; Length, o.a., 5.97 m. (19 ft. 7 ins.) ; span, 7.2 m. (23 ft. 7 ins.) ; wing area, 16.32 sq. m. (175 sq. ft.). The weight of the machine empty is 420 kgs. (925 lbs.) ; useful load, 240 kgs. (528 lbs.) ; total loaded weight, 660 kgs. (1,453 lbs.) ; top speed, 140 km./h. (87 m.p.h.) ; landing speed, 70 km./h. (46 mph.) ; and ceiling, 3,200 m. (10,500 ft.). The D.P. VIIA is somewhat similar to the D.P.IIA as regards its fuselage, which is of similar construction, but it is a parasol machine of an aerodynamic efficiency approaching that of gliders, or, at any rate, of the most efficient light 'planes This machine, the A. 16, was designed as a small commercial machine, and that it is efficient will be gathered when we say that with an engine of 75 h.p. it carries a pilot and three passengers ; in other words, a power expenditure of about 19 h.p. per occupant. Even at that the performance is quite good, the topspeed being 135-140 km./h. (84-87 m.p.h.). With the high-power loading it might be expected that the climb would not be particularly good, but we understand an altitude of 3,000 m. (9,800 ft.) is reached in 14 minutes, which is certainly not bad. The Dietrich parasol monoplane, type D.P. Vila, is fitted with 55 h.p. Siemens engine. monoplane and has a five-cylinder Siemens radial engine of 60 h.p. This machine, it may be remembered, was exhibited at the Prague Aero Show last year. The monoplane wing is carried by N-struts. The wing is built in two halves so as to facilitate transport. The dimensions of the D.P.VIIA are : Length, o.a., 6.02 rr;. (19 ft. 8 ins.) ; span, 9.66 m. (31 ft. 8 ins.) ; height, 2.22 m. (7 ft. 4 ins.) ; wing area, 14 sq. m. (150 sq. ft.). The empty weight is 385 kgs. (850 lbs.) ; useful load, 225 kgs. (495 lbs.) ; total loaded weight, 610 kgs. (1,345 lbs.) ; top speed, 140 km./h. (87 m.p.h.) ; landing speed, 60 km./h. (37.5 m.p.h.) ; and ceiling, 3,200 m. It might be mentioned that both types of Dietrich machines have been used extensively for " stunt " flying, for which purpose they have become extremely popular. Focke-Wulf Flugzeugbau It is now some two years ago that a new German aircraft firm somewhat startled the world by producing a commercial The Dietrich D.P. Ha biplane is of slightly greater power than the monoplane, being fitted with a Siemens 75 h.p. engine. Just recently a modified version has been prepared which is very similar in general design to the original A. 16, but is fitted with a 100 h.p. Mercedes in place of the original 75 h.p. Siemens radial. Owing to the considerably greater weight of the Mercedes, the new type, the A. 16A, carries a not much greater useful load, but it is thought that the reliability should be considerably greater. For the Round-Germany flight the Focke-Wulf firm has entered one machine of each type, but there will be five of their machines in the competition, as other companies have entered machines of Focke-Wulf construction. One of the machines entered by this Company will be piloted by Herr Georg Wulf himself. WTith the exception of minor changes in detail, the con- struction of both types of Focke-Wrulf is the same, and the following notes, unless otherwise stated, may therefore be 320
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
