Indianapolis Times, Volume 40, Number 268, Indianapolis, Marion County, 29 March 1929 — Page 7

MARCH 29,1929

CITY'S AVIATION PLANTS EXPAND AT RAPID PACE Industry Shows Great Gain in Year; Engines Go All Over World. This Is the fourth and last artirlr in a series by The Time* aviation editor, based upon a survey of the aviation Industry in Indianapolis, just completed. 3Y LOWELL NUSSBAUM Times Aviation Editor Industrially, Indianapolis lias kept pace with the remarkable progress made by the city along other aviation lines in the last year. Factories employ more than 300 men full time and plans under way will ---re than double this number; li *k months. Most of the industrial aviation progress here has been along the j | lines of designing and building air-: plane engines and parts. Two local companies are building' and testing airplane engines, which, they expect to place on a produc- ! tion basis within the year. Two other companies are engaged in \ building experimental engines for i governments and commercial firms, j Indianapolis / is considered extremely fortunate in its development along this line, because of the great demand in the industry for satisfactory economical airplane en- ' gines. Many Will Collapse There are nearly 130 companiesbuilding airplanes. Many, it is predicted, will fall by the wayside, be- 1 cause they will be unable to obtain satisfactory motors. The number of men equipped to build planes is far greater than those able to design ! good motors. Very few airplane engines have been approved by the department! of commerce, in comparison with airplanes. Companies building good airplane engines soon will be in an enviable position, because the plhne companies will be forced to ally them- j selves with these companies to assure delivery of engines. This merging of allied companies already has been demonstrated bv the ! automobile Industry. The Allison Engineering Corporation, Speedway City, which has 1 been sold to anew company formed ! by Detroit capitalists, who plan to double the size of the plant and capacity, is the largest local industry engaging exclusively in manufacture , of aviation products. Known Over World The company now employs 220 men. Allison company is known inter- i nationally for its airplane design- j ing and experimental engine con- ! structlon. It has designed and built j experimental airplane engines for i many foreign governments as well j as for the United States government j ,and commercial companies. Several months ago the plane de- 1 ilivered to Wright field, Dayton, for I army experimental purposes, a 24cylinder, 1,500-horse power, X-type, j air-cooled airplane engine. In the last year the company has reconditioned more than 1,000 Liberty airplane engines for the American government. The corporation holds exclusive patents on a superior steel-back 1 bearing which it manufactures. The bearings are being used on all Liberty, Wright and Pratt & Whitney j airplane engines. Another Company Busy It also makes propeller reduction I gears for planes, and has built superchargers for navy planes and for the Peruvian government. The Indianapolis Tool and Machinery Company has thirty-five men turning out various types of gears used in airplane engines at! its plant, 205 West South street.. The company is expanding rapidly. Work turned out by this concern j gives an idea of the precision neces- j sary in the aviation industry. Every gear accepted has a high finish all over which would do justice to the handiwork of a fine jeweler. Parts; are bored out to reduce weight. The satiny finish reduces friction and cuts off rough spots which add unnecessary weight. The parts are made of the highest quality alloy steel, with unusual heat treatment to get maximum strength from the lightest pieces. Chevrolet Aircraft Corporation, 141 West Tenth street, headed by Louis Chevrolet, now' is testing a four-cylinder, air-cooled, in-line inverted airplane motor, which it expects to have in production within the next year. Merz Concern Well Known Merz Engineering company. 937 j North Capitol avenue, is known ! throughout the country for its de- j signing and building of experimental airplane engines. This company also engages in competitive designing for the government. About twenty-five men are employed in this work. Experimental four and six cylinder air-cooled, inverted in-line airplane engines are being constructed by the Arthur Chevrolet Aviation Motor Corporation. 410 West Tenth street. Thirty men are employed by the company in building its experimental engines, and many times that number will be employed when the engines are placed on a production basis, probably in six months, j B. P. Prunk. vice-president, is enthusiastic over possibilities of the in-line inverted type of airplane engine. “This type of engine gives greater visibility to the pilot and permits better steam-lining, making the plane more economical to operate.” he said. Develops New Alloy The C. & G. Foundry and Pattern Works, 1026 Kentucky avenue, is developing a new' aluminum alloy. expected to prove highly satisfactory for use in building airplanes. This alloy, twice as strong as ordinary aluminum, combines the necessary qualities of lightness and strength. The company expects to have the new metal in production within thirty days , The C. Sc G. company also makes patterns for factories needing engine or engine parts patterns. Various other plants are increasing their business through orders placed with them by these and other companies. These plants Include foundries, machine shops and heat i

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THE TIMES

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