August 28, 1961

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SAFETY

Blade Fatigue Cited in Chicago S-58 Crash

On July 27, 1960, at 2238 CDT, a Sikorsky S-58C helicopter, N 879, operated by Chicago Helicopter Airways, Inc., as Flight 698, crashed and burned in Forest Home Cemetery, Forest Park, 111. The aircraft was demolished. The crew members and 11 passengers were killed.

MANAGEMENT

British Study Increased Helicopter Use

London—Expanded use of rotary-wing aircraft in Great Britain has been given new impetus in a series of developments led by recommendations for construction of a city-center heliport here. In past years, with exception of military use, the helicopter in the United Kingdom has been relegated to a subsidiary role in air transportation despite surges in the use of fixed-wing methods.

By Herbert J. Coleman9 min

AVIONICS

Litton Is Developing Space Data System

Woodland Hills, Calif.—Prototype flight data system capable of obtaining and providing data for control of earth orbital aerospace vehicles is being developed here by Litton Systems, Inc., as part of an Air Force applied research program.

By Barry Miller7 min

AIR TRANSPORT

Frontier Seeks Subsidy-free Operation

Denver—Abandonment of unproductive points and expansion of its present route system to more heavily populated cities in the Southwest forms the basic strategy of Frontier Airlines’ plans to become a subsidy-free operation. Frontier is the largest of 13 local service airlines, with a route system of 6,000 mi. serving 63 cities in 11 states.

By Robert H. Cook6 min

FINANCIAL

New Offerings

Hi-Shear Corp, Torrance, Calif., engaged in the design, development and manufacture of high strength and close tolerance fastening devices and fastener assembly systems for the aircraft and missile industries. Offering is 139,500 common shares; 105,000 shares for public sale by the company, and 34,500 outstanding shares by the present holders.

FINANCIAL

Nasa Contracts

National Aeronautics and Space Administration awarded the following contracts and research grants during April, 1961. The figures shown represent the total estimated cost of contracts of $50,000 or more let during the period. HEADQUARTERS, WASHINGTON, D. C. University of Hawaii, Honolulu, Hawaii— $120,039—Research, in cooperation with the University of Colorado, on zodiacal light selected lines in the airglow spectrum.

August 211961

September 41961

August 28, 1961

August 28, 1961

Blade Fatigue Cited in Chicago S-58 Crash