Aircraft Engineering and Aerospace Technology: Volume 2 Issue 2

The Relativity of Facts

A PROMINENT personality in the British aircraft industry recently, we are told, referred to the “unimpeachable accuracy” of this paper. This is, of course, a great compliment…

The Single Spar Wing Again: Details of the Weymann‐Lepère System of Construction which Aims at Economy, Simplicity and Homogeneity

R.J. de Marolles

ALL‐METAL construction is much to the fore in many countries, in various forms; some engineers still cling to fabric as a covering, relying solely on structural members to take…

Illuminated Wind Indicators: Characteristics of the Latest Type Evolved and a Discussion of Probable Future Developments and Requirements

Major H.O. Wraith

ON landing on an aerodrome by day, a pilot must be flying into the wind in order to reduce velocity when he actually first touches ground, and therefore he requires to know in…

The Lubrication of Engines: Important Conclusions Reached as a Result of Extensive Experiments With Specially Designed Apparatus

O. Thornycroft, C.H. Barton

THE function and behaviour of a lubricant on certain parts of an internal‐combustion engine is so complex that the knowledge on this subject is still very incomplete. After…

David and Goliath—a Contrast: Two Extremes of Herr Hugo Junkers Productions, Both of Entirely Metal Construction, Described and Illustrated

THE Junkers A.50 “Junior,” which made its first appearance at the Olympia Aero Show last July and is now being put on the market, was designed to provide a machine capable of…

The New U.S. Wind Tunnels: Developments in Aerodynamics Demand the Compressed Air Tunnel the “Full Scale” Tunnel and the “Full Speed” Tunnel

R. McKinnon Wood

MUCH has been learnt, in many branches of science and engineering, from the use of small‐scale models. The earliest successful experiments in humanly contrived flight with…

A Course for Ground Engineers: VIII.—Hints on the Inspection and Complete Overhaul of Engines for Applicants for a “D” Licence

Major A.A. Ross

THE syllabus of the examination for a licence in category “D,” as given in the first article of this series, requires from the applicant a specialised knowledge of:

Research Reports and Memoranda

In estimating the change of performance of an aircraft resulting from a change in the airscrew‐engine unit—for example, in considering the possible improvement of performance clue…

Month in the Patent Office: A Selection from Important Recently Published Aircraft and Aero Engine Specifications

Controlling.—An aeroplane is provided with one or more narrow planes, above the main plane, which can be maintained automatically or by the pilot at a lesser angle of incidence…