In Partnership With

April 29, 1968

Helicopter Speed Breakthrough Seen in New Rotor System

Special Report: Airline Economics

Turbojet/turbofan Aircraft 1967 Operations and Traffic Statistics

Air Transport

Carriers Face Unsettled Outlook

112113

Helicopter Speed Breakthrough Seen in New Rotor System

Stratford, Conn.—Sikorsky Aircraft engineers and management are convinced that a rigid-rotor counter-rotating advancing-blade system can lift the maximum speed of the pure helicopter through the theoretical ceiling of 230-250 kt. traditionally assigned to it.
6061

Special Report: Airline Economics

Turbojet/turbofan Aircraft 1967 Operations and Traffic Statistics

OPERATIONS— ALL SERVICES Revenue Miles (000) Revenue Hours Speed (mph.) No. of Aircraft Daily Aircraft Util. Hours Miles Non-Revenue Miles Number (000) % of Revenue Fuel Per Hour (Gals.) BOEING 707 Trans World—Psgr Trans World—Cargo Pan American—Psgr
3839

Air Transport

Carriers Face Unsettled Outlook

Picture of booming traffic year marked by some disquieting signs in foreground as April boardings slump beneath predicted levels

9899

Aeronautical Engineering

Forming Holds Key to Future Structures

New York—Improved metal forming techniques occupy an essential portion of a broad surge forward in metalworking required for the production of advanced aircraft and space vehicles. On the basis of dollars spent for new production equipment by first tier airframe and jet engine companies, machines that form metal parts and components do not match metal removal machines.

134135

Avionics

Advanced Comsat Techniques Developed

Lincoln Laboratory aiming for reliable, long-range military communications; emphasis placed on multiple-access satellite

124125

Space Technology

‘pulsars' Emit Precise Signals

Celestial phenomena transmitting radio energy across sizable portion of frequency spectrum may be rotating ‘neutron stars'

8081

Special Report: Airline Economics

International Airline North Atlantic Passengers, Load Factors—year 1967

(In Scheduled Service) Pan American Trans World BOAC Air France Lufthansa Air Canada KLM AIitalia SAS Swissair Total No. of Passengers Percent Participation First Class Passengers Economy Passengers Percent Economy Total No. of Flights
2627

Missile Engineering

Navy Seeking Anti-styx Weapon

Use of Russian-made missile to sink Israeli vessel alarms U.S. officials, who considered it ineffective; danger seen in Vietnam

144145

Business Flying

Bellanca Sets Flight for Plastic Aircraft

Company’s design of four-place, single-engine prototype based on materials high strength-to-weight ratio, ease of manufacture

3031

Management

General Electric Aerospace Sales Climb

April 221968 May 61968