In Partnership With

July 20, 1929

Aeronautical Engineering Section

Analysis of the Wing and Other Indeterminate Structures

Aeronautical Engineering Section

Manufacturers’ Specifications on American Commercial Airplanes and Seaplanes as Compiled By Aviatio

Heating and Ventilating for Airport Buildings

194195

Aeronautical Engineering Section

Analysis of the Wing and Other Indeterminate Structures

IN THE first paper we have shown that the elementary methods based only upon the rules of statics are insufficient for solving most of the problems which are brought daily to the attention of the aeronautical engineer. Hence the need and importance of more exact methods.

208209

Aeronautical Engineering Section

Manufacturers’ Specifications on American Commercial Airplanes and Seaplanes as Compiled By Aviatio

THE TABLE BELOW IS BELIEVED TO BE ACCURATE BUT AVIATION DOES NOT ASSUME RESPONSIBILITY FOR THE FIGURES GIVEN

170171

Heating and Ventilating for Airport Buildings

Article III Design of Boiler Plant, Smoke Stacks and Selection of Fuel

166167

Sales Factors in the Cabin Plane Market

FOLLOWING the recent popular wave of enthusiasm for flying, aircraft manufacturers have performed wonders in placing new plane designs on a quantity production basis in an attempt to meet the demand. The Lockheed factory, for instance, built only three planes during 1927, yet was able to build and deliver 50 planes during 1928, and according to present production schedules will turn out at least 200 planes during 1929.

202203

Aeronautical Engineering Section

British Methods of Steel Aircraft Construction

AT THE present time seven or eight of the leading aircraft manufacturers of Great Britain regularly employ steel for the main structural members of wings in their military aircraft as against only two who have adopted duralumin for this purpose.

192193

Aeronautical Engineering Section

An Analysis of Airplane Landing Speeds

IT IS possible that there is not a very widespread realization of the absurdity of many of the published performance characteristics of our present commercial airplanes. It appears that the practice of exaggeration is very generally indulged in and there is presented herewith an analysis of airplane landing speeds as an illustrative example.

174175

Lumber Built Airplane Hangars

An Advocate of Wooden Hangar Construction Presents His Opinions on Their Economic Advantages

184185

GENERAL NEWS

Briefly

The Porter-Cable Machine Company, Syracuse, N. Y., has bought and will continue the manufacture of the Emmert oscillating spindle sander formerly manufactured by the Emmert Manufacturing Company, Waynesboro, Pa. The Airways communication radio stations at Oakland, Fresno and Glendale, Cal., and the model airway between Oakland and Los Angeles have been put in operation.
164165

Editorials

Steel

THERE ARE national fads and fancies in aircraft design. The British government for years could see no virtue in welded steel fuselages. One country rejects the idea of the cantilever monoplane, while another will have nothing else. One is quick to adopt the air-cooled engine, another resists the innovation to the last gasp.
194195

Aeronautical Engineering Section

Technical Reviews

N.A.C.A. Technical Report No. 315, Aerodynamic Characteristics of Airfoils—VI, continuation of Reports Nos. 93, 124, 182, 244, and 286. This collection of data on airfoils has been made from the published reports of a number of the leading aerodynamic laboratories of this country and Europe.
July 131929 July 271929