February 24, 1975

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Management

Nitze Delineates U. S.-soviet Differences

. . . After the SALT 1 agreements were signed in Moscow in May, 1972, the U. S. delegation had one interpretation of the meaning of the Interim Agreement, the Soviet side seemed to have come away with quite a different interpretation. The U. S. delegation testified before the Congress in support of the ratification of the SALT 1 agreements that the Interim Agreement was, in essence, a short-term freeze on new strategic missile launcher starts beyond the number then assumed to be operational and under construction.

Aeronautical Engineering

Dash 7 Designed to Cut Noise, Pollution

Downsview, Ontario—De Havilland of Canada DHC-7 four-turboprop short-takeoff-and-landing transport has been designed from the outset to alleviate the two principal environmental concerns about aircraft—noise and exhaust emissions—to permit the aircraft to operate near heavily populated urban areas and after the late-night airport noise curfew some localities have imposed.

By Warren C. Wetmore15 min

Aeronautical Engineering

Developers Face 1975 Cfm56 Decision

General Electric, Snecma must make production commitment on commercial turbofan to meet planned certification in 1977

By Michael L. Yaffee12 min

Air Transport

Northwest Crash Probe Focuses on Icing

Bear Mountain, N. Y.-Rapid-fire sequence of contradictory warnings of aircraft over-speed and an incipient stall experienced by the flight crew of a Northwest Airlines Boeing 727 that crashed near here Dec. 1, apparently followed complete blockage of the aircraft’s pitot heads by ice formation during climb to cruise altitude, expert witnesses testified at a National Transportation Safety Board hearing on the crash.

By Kenneth J. Stein9 min

Air Transport

Texas Carrier Faces New Challenges

Houston—Texas International will trim operations to the minimum consistent with making a profit to overcome its immediate financial and operational problems and husband its strength to resume the growth program it embarked upon following reorganization two years ago.

By Erwin J. Bulban7 min

Avionics

Eased Pilot Workload Sought in Yc-14

Seattle—Electronic flight control system on the Boeing YC-14 entry in USAF’s advanced medium STOL (AMST) competition is designed to minimize pilot workload during precision landings and insure that the airplane handles as easily in the slow-speed short-takeoff-and-landing mode as in cruise flight.

By Benjamin M. Elson7 min

Missile Engineering

Funds for Advanced Lance Missile Sought By Army

Washington—Army is seeking approximately $10 million in the Fiscal 1976 budget request to develop an advanced battlefield support missile designated Lance 2 and for component technology improvement for the existing LTV Aerospace Corp. MGM-52C Lance deployed with a nuclear warhead.

Missile Engineering

Single Cruise Missile Set for Varied Use

Washington—Defense Dept. expects to develop and deploy a single cruise missile for a wide variety of applications and will not limit the air-launched version’s size to fit the short-range attack missile (SRAM) rotary launcher now in the Boeing B-52 and planned for the Rockwell International B-1 bomber (AW&ST Jan. 21, 1974, p. 18).

By Clarence A. Robinson6 min

Space Technology

Soviets Stress Exercise on Salyut Flight

Soviet Soyuz 17/Salyut 4 crew followed a multi-disciplined 2.5-hr. daily exercise routine over the course of its 30-day flight that was longer than the exercise routines on all three U. S. Skylab missions. The cosmonauts, Red Air Force Lt. Col. Aleksi Gubarev and Georgiy Grechko, undocked their Soyuz spacecraft from Salyut 4 and returned to earth Feb. 9 (AW&ST Feb. 17, p. 19).

Air Transport

Crew, Atc System Cited in 727 Crash

Washington—Federal Aviation Administration official last week testified he believes the crew of Trans World Airlines Flight 514 that struck a Virginia mountain Dec. 1 misread their instrument approach plate. But he indicated the air traffic system may have influenced the crash, which killed 92 persons.

By Charles E. Schneider5 min

February 171975

March 31975

February 24, 1975

February 24, 1975