January 29, 1968

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Aeronautical Engineering

Tri-service Needs Guide Crane Designs

Washington-Boeing/ Vertol is developing a family of 20-ton-plus payload crane helicopters in hopes of meeting tri-service requirements for such heavy-lift vehicle designs. Heavy-lift crane work has been assigned as the top-priority mission of the company’s Advanced Helicopter Dept.

By Cecil Brownlow8 min

Air Transport

Chemical Seeding Disperses Airport Fog

Sacramento, Calif.—Encouraging results so far in a fog-dispersal test program here indicate that the U.S. airline industry may be approaching a solution to the fog problem that costs it an estimated $75 million a year. During the first half of the test program, an airport closed by warm fog was opened on 11 occasions out of 16 attempts by seeding the fog layers from the air with chemicals.

By Richard G. O’Lone6 min

Air Transport

10-year Aviation Facilities Plan Readied

Washington—Comprehensive, 10-year aviation facilities planning package will be the first major document embodying Transportation Dept, analysis and appraisal of the present airways and airport facilities system. The plan is being developed in response to President Johnson’s request last fall for an updated air traffic control system plan.

Avionics

Modular Tactical Radar Display Developed

New generation of compact, lightweight, low-power tactical radar displays could evolve from a modular system developed under the sponsorship of USAF Rome Air Development Center. The modular approach was chosen so that a family of displays could be developed around a single basic design.

By Benjamin M. Elson5 min

January 221968

February 51968

January 29, 1968

January 29, 1968

Electrical Failure Cited in Lear Jet Crash

Nasa Seeks Tank Stress Corrosion Cause

By Michael L. Yaffee9 min