FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1926
1926 - 0112.PDF
The detachable engine mounting on the Russian "K.I " monoplane. of the fuselage from the engine to the rear of the cabin is sheet aluminium, while the remaining portion of the fuselage is fabric-covered. The engine, complete with accessories, is mounted on a special frame, which is attached to the fuselage by four bolts, and it is possible to remove this frame and replace it by another frame with a spare engine installed in about half- an-hour. Or, if desired, an engine of different make can be fitted. For instance, at present a 170 h.p. Salmson engine is fitted, but provision has been made in the design for replacing this engine by one of entirely different make, such as the 185 h.p. B.M.W., for which engine a special engine frame is employed, but which is attached to the fuselage by the same four bolts. The wings of the*" K.I " form another feature, for M. Kalinin has adopted the elliptical plan form, which, FEBRUARY 25, 1926 although presenting certain difficulties from the production point of view, possesses good aerodynamical qualities. The wing section employed is the Prandtl No. 436. The wings, which are set at a dihedral angle of 6°, are built up in three sections, a centre panel mounted on the top of the fuselage, and two outer panels bolted to the former. Bracing is by two pairs of steel struts streamlined by aluminium fairings extending from the lower longerons of the fuselage up to the wings. The strut attachments to the latter are faired by neat aluminium boxes. An elliptical plan form is also employed for the horizontal tail plane and divided elevator, but the section is symmetrical. A small triangular vertical fin, to which is hinged a balanced rudder, is mounted above the horizontal tail plane. The angle of incidence of the tail plane, it should be noted, can be adjusted to meet variations of load. Wings and tail surfaces are fabric covered. Lateral balance is obtained by means of ailerons, which, it will be observed, are not particularly large. A conventional V-type undercarriage, with V-inter-strut bracing, is employed, the struts being steel tubes with stream- line aluminium fairings. A special airscrew, designed by M. Kalinin and constructed in the R.W.Z.6 factory, is'fitted. If required, the " K.I " can be adapted for hospital work, the cabin being altered to accommodate three berths, stretchers and other hospital appliances. Its adaptability is thus par- ticularly suitable for the conditions in Russia. The " K. 1"—which is the first machine employing steel tube construction to be produced in Russia—was completed in July, 1925, and on the 26th of that month made its first trial flight, piloted by the work's chief pilot, Kossinsky, with satisfactory results. In September the first flight with pas- sengers was made to Moskva, via Charkov. The 430 kms. (266-6 miles) to Charkov was accomplished in 2 hrs. 45 mins. at an average speed of 156 k.p.h. (96-7 m.p.h.), and the 390 kms. (242 miles) to Orel in 2 hrs. 55 mins. The remaining 380 kms. (235'6 miles) to Moskva, against a strong headwind, took, also, 2 hrs. 55 mins. This was in the nature of its official trial, and after further various trials under a special commission, it was found to answer all requirements, and was therefore passed on for service on the civilian air lines. The principal characteristics of the " K.I " are :— Span Chord O.A. length Wing area Weight laden (approx. Wing loading Power loading Speed range Climb in 12 mins. Ceiling.. Gliding angle Pull-up in landing 16-76 m. (55 ft. 0 ins.). 3-50 m. (11 ft. 5 ins.). 10-72 m. (35 ft. 2 ins.). 40 sq. m. (430-4 sq. ft.). 2,000 kgs. (4,400 lbs.). 49-3 kgs. m2 (10-1 lbs./ sq. ft.). ' 12-3 kgs./h.p. (27 lbs./h.p.). 60-160 k.p.h. (37-99 m.p.h.). 1.000 m. (3,280 ft.). 3,000 m. (9,840 ft.). 1 in 9-2. l"0-120m. (328-373 ft.). THE " K.I " COMMERCIAL MONOPLANE : Front view of the Russian-built machine, the first to be produced in that country employing tubular steel construction. A Canadian Air Service THE Ontario Government has arranged for the establish- ment, through private contractors, of an aeroplane service from Hudson station, on the Trans-Continental Railway, to the new Red Lake (Ontario) gold area. Another Brussels-Congo Flight ? THE Belgian pilot, Lieut. Medaets, is shortly to under- take a second flight from Brussels to Kinshasa, in Belgian Congo, and back. The Belgian Cabinet has agreed to provide 100,000 fr. towards the expenses of the expedition. Thii- time a different route will be followed, for, instead of flying via Morocco and across the Sheard, the Nile Valley routi will be taken as far as Kenya, thence westward througl" Belgian Congo, a total distance of nearly 6,000 miles. Inci dentally, it may be mentioned that the remaining portioi of the Kinshasa—Elizabcthville air line (operated vritl Handley Page machines) was opened on February 12. 104
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
