August 31, 1929

A Study of the Engines Exhibited at Olympia the Aero Show

The S. A. E. Propeller and Power Plant Sessions

Overhauling OX-5 Crankcase and Cylinder Assemblies


A Study of the Engines Exhibited at Olympia the Aero Show

A STUDY of the engines at the Olympia Show leads one to the general opinion that American practice has exerted a profound influence on foreign airplane engine designs. What we are pleased to call the “American” type of aircooled cylinder is now almost universally adopted, the last to come into line being the well known Bristol firm, which up to that time had consistently used an all-steel cylinder.


The S. A. E. Propeller and Power Plant Sessions

EXCEPT for the aeronautic standard session which is an initial feature of every S.A.E. aeronautic meeting, the engineering discussions at Cleveland opened with a propeller session on Monday afternoon, followed by a meeting on power-plant topics in the evening.


Overhauling OX-5 Crankcase and Cylinder Assemblies

The Last of a Series of Three Articles About the Service Organization of Parks Air College


First Flights of the Metal-Clad Airship

WITNESSED by several thousand persons, including many of the best known naval and civil aeronautical engineers in the nation, the Detroit Aircraft Corporation recently test flew their metal-clad dirigible, ZMC-2, “a distinctly American airship,” which they built for the United States Navy.


The 1929 National Air Races Get Under Way

WHILE WORKMEN were putting last minute appointments on a somewhat dampened airport Cleveland’s National Air Races and Aeronautical Exposition were inaugurated on August 24. Indicative of both the brilliancy of the forthcoming 10-day aerial program and the industrial magnitude of twentieth century transport —via the skies—a floral parade, of more than an hour’s length, passed through the downtown streets, terminating at the exposition building.


What Our Readers Say

Landing Speeds Again To THE EDITOR: In Aviation dated July 20th, page 192, Analysis of Airplane Landing-Speeds, by Mr. Elliott G. Reid, the point brought out is that the landing speed as advertised by airplane manufacturers seems to be lower than the one calculated based on wing loading and largest lift coefficient.

Inside the Exposition Building at Cleveland

ALTHOUGH the airplane and engine exhibits were fewer in number than those of some of the previous expositions, the representation at the National Aeronautical Exposition on the opening day (Aug. 24) presented an excellent cross section of the industry.



Bureau of Standards calibrations showed that Waldo Waterman, test pilot at the Los Angeles Metropolitan Airport, made an American altitude record for commercial planes of 20,820 ft. on July 27. A new all-metal mail monoplane, manufactured by the General Airplanes Corporation of Buffalo, was tested recently.

Air Force Pageantry

DURING the present week at Cleveland the industry is displaying its wares. The atmosphere is, and it should he, primarily commercial, but the military is not excluded. The “Three Sea-Hawks” who shone at Los Angeles have been disbanded, but their successors will be on hand to show that the Navy can fly as well from an inland field as over the sea, and the Army’s First Pursuit Group will evolute with an unvarying finesse.


Airport Construction Projects

Construction has been started on the new $10,000 four-story passenger depot for the Los Angeles terminal of the Western Air Express, and the building will be in service by December of this year, according to announcement of the Western Air Express officials.
August 241929 September 71929