In Partnership With

December 15, 1916

Possible Improvements in Carrying Capacity and Speed of Rigid Airships

Course in Aerodynamics and Airplane Design

A Time Controlled Aerial Torpedo

318319

Possible Improvements in Carrying Capacity and Speed of Rigid Airships

Let V equal the available gas volume of the airship in cubic meters, s the difference in specific weights between gas and air per cubic meter, then the following expression is obtained for the buoyancy of the ship, H: H = V s in kilograms. The net weight Le (empty weight) of the ship comprises the following weights:

328329

Course in Aerodynamics and Airplane Design

Resistance of Various Airplane Parts

322323

A Time Controlled Aerial Torpedo

The aerial bomb has advanced through its various stages of development from the most primitive methods to the more finished product and certainly more effective projectile now used by warring Europe. The Ehrhardt Munition Co. of Germany has attained the distinction of having produced what is perhaps the most effective weapon of this type.

324325

The British Aeronautical Situation

Lord Montagu of Beaulieu recently reviewed tlie British military situation in the air in two articles in the London Times. His statement has revived the question of the advisability of a single control over the British army and navy air service.
324325

The Verville Pusher Type Seaplane and Gun-Carrying Machine

Limited observation and firing range due to the necessary position of the propeller mount is one of the disadvantages of the tractor type of airplane, while the flying boat is handicapped by a high net weight that limits the useful load. The pusher seaplane presents advantages for bomb dropping, observation, reconnaissance, scouting and for fighting purposes over other aircraft.
326327

A Two Propeller Tractor Model

Owing to the small amount of experimenting along this interesting branch of model building, there has been little of account done in a field that promises to show astonishing results. Practically all of the tractor models built have followed very closely the scale types, resulting in short flights if any at all.
326327

Allies Ordering 6275 Hispano-Suiza Engines

According to Espana Automovil y Aeronautica, issue of October 30, 1916. the Hispano-Suiza Works of Paris and Barcelona are building 2.000 150 horsepower aero-engines for use with the French and Spanish aviation services, and additional orders aggregating 4,275 engines of the same model have been awarded to the following concessionaires:
320321

Contracts Let by Army for $2,007,000 Worth of Seaplanes

The Aviation Section of the Signal Corps, U. S. A., awarded on December 6 preliminary orders for 96 twin-motored seaplanes to cost $2,007,000. Further orders under this proposal are under consideration awaiting demonstration of types.
316317

Editorials

Editorials

322323

Lieut. Herbert Dargue Reports on Night Flying

Searchlights mounted on a movable base in proximity to the pilot, should be placed on all airplanes employed in night flying, according to Lieut. Herbert Dargue, instructor in flymg at the North Island military aerodrome, according to the San Diego, Cal., Union.
December 11916 January 11917