January 1, 1919

Air Transport and the Aircraft Industry

The Curtiss Model K 12 Cylinder Airplane Engine

The Future of Airplane Photography


Air Transport and the Aircraft Industry

The termination of hostilities and the dawn of peace find the aircraft industry at the topnotch of its war-won expansion. However, the sudden return to peace time conditions, with the likelihood of the Army and Navy Air Services being considerably reduced both in personnel and material, raises the imperative question as to what shall be done to insure the aircraft industry the position it has acquired during the war through its skill and enterprise.

The Curtiss Model K 12 Cylinder Airplane Engine

This engine, of the fixed cylinder type, consists of twelve cylinders arranged in two groups of six each, with an included angle of 60 deg. The bore is 4½ in. and the stroke 6 in., the displacement of one cylinder being 95.4 cu. in. or 1.56 liters, and the total displacement 1144.8 cu. in. or 18.80 liters.

The Future of Airplane Photography

The commercial future of airplane photography is not generally appreciated by airplane builders, since they have not as yet realized that preliminary surveying of highroads, railroad and other through routes can be done quicker and more cheaply by airplane photography than by any other known method.


The Martin Twin-Engined Bomber

The Martin twin-engined bomber constitutes one of the most important developments in bombing airplanes of original American design. In its official tests, at Wilbur Wright Field, the all-round performance of this machine, considering the load carried, has easily excelled any other record from a similar bomber, either here or abroad.


The Case for the Airship*

Before launching into details it may be advisable to set forth the salient features of lighter-than-air and heavier-than-air craft, respectively, as I see them. In the case of the airship the main characteristics are: (1) Long endurance.


Future of the Helium Airship

It is a curious coincidence that the Great War should have come to an end just about the time the discovery of a substitute for hydrogen as a lifting gas—an American discovery, by the way—promised to revolutionize aerial warfare. This substitute is helium, an inert, non-inflammable gas having approximately 92 per cent the lifting power of hydrogen; investigations made before the war show that the natural gases of Kansas, Oklahoma, Texas and Ontario contain about 1 per cent helium.


British Official Report on Air Transport

The report of the British Civil Aerial Transport Committee, which was presented to the Air Council nearly six months ago, has now been presented to Parliament, but apparently it will not be printed until Parliament sits again in the New Year.

The Outlook for 1919

While the stage of aviation upon which we are now entering will call for entirely new developments in design, the present military types—with the removal of guns and equipment— appear to find their places in one phase or another of the immediate market ahead.


The Future of Civil Flying

Although it is now fifteen years since the first flight was made with a heavier-than-air machine, the use of the airplane for commerce and sport has developed but little. This failure has been accounted for in several ways. It has been said that the expense of owning and maintaining a flying machine is too great.


News of the Fortnight

Major Gen. Charles T. Menoher has been appointed Director of Air Service in place of John D. Ryan, resigned. The appointment was announced by the War Department on December 21. In making the announcement for the Department, the Chief of Staff said:
December 151918 January 151919