February 1, 1919

The Model H, 300 h.p., Hispano-Suiza Engine

Commercial Transport by Airplane

The Naval Aircraft Factory


The Model H, 300 h.p., Hispano-Suiza Engine

Rated at 300 hp. at 1,650 r.p.m. the Model H is the most powerful of the series of Hispano-Suiza engines. In its general lines this engine is very similar to the Model I, which was described in the Dec. 1, 1918, issue of AVIATION AND AERONAUTICAL ENGINEERING; the description which follows deals therefore mainly with the points in which the Model H differs from the other Hispano-Suiza engines, and particularly with regard to lubrication.

Commercial Transport by Airplane

In considering the possibilities of the employment of aircraft for purposes of the transport of passengers, mails and parcels, the Special Committee directed an inquiry† to be made as to (i.) four existing types of airplane, and (ii.) rigid airships.

The Naval Aircraft Factory

On July 27, 1917, Secretary of the Navy Daniels signed the document which authorized the only government owned and operated factory this country has ever possessed, the Naval Aircraft Factory; fourteen days later construction work actually began at the League Island Navy Yard, Philadelphia, on a site selected by Naval Constructor F. G. Coburn, U. S. N., who had been appointed manager of the factory.

Organization of Aerial Ports


News of the Fortnight

With the signing of the armistice, a reliable and intimate view of the United States aircraft program has been made possible in detailed figures authorized by the Production Division of the Bureau of Aircraft Production. These figures show that up to Nov. 11, 1918, a total of 33,384 planes of all kinds had been ordered; that subsequent to that date orders for 19,628 planes were cancelled, and that on account of the uncancelled orders, or 13,756, there had been shipped up to Dec. 27, 1918, a total of 13,241.

Selecting Aerofoil Sections for Speed Range

The accompanying charts were developed to serve as a “rough and ready” means of choosing the best aerofoil section for speed range. Incidentally, the charts serve to roughly estimate the speed performance to be expected in a given airplane.


The Airship for Commercial Purposes



THERE are printed in the present issue excerpts from technical reports submitted by special sub-committees to the British Committee on Civil Aerial Transport, to which particular attention is invited. These reports possess considerable value as elucidating some of the complex questions that arise in connection with the establishment of commercial aeronautics, the more so as they represent the opinions of a large number of authoritative men possessing scientific, technical, manufacturing, and practical experience in aeronautics.

The Bijur Airplane Engine Starter

The Bijur airplane engine starter was designed at the request of the Bureau and of the Airplane Engineering Department of the Signal Corps for use particularly on seaplanes. It was desired to obtain a starter of minimum weight and low current consumption combined with a maximum of cranking power to break away a stiff engine.

The Fokker-Junkers Armored Biplane

The Fokker-Junkers armored biplane, which is illustrated herewith with the wings folded against the body, is the product of the Fokker-Junkers Works, Ltd., of Dessau, Germany, which was formed in 1917 by the builder of the well-known Fokker pursuit biplanes and triplanes, and Herr Junkers, a manufacturer of heavy-oil engines.
January 151919 February 151919