Business & Commercial Aviation News From December 1970


There’s no doubt that operating to more stringent regulations is going to increase costs. Coming at this time, it will be particularly bad.  ­­B­CA Staff

It is presuming on safety to operate any large airplane in accordance with the bare minimums of Part 91. . . . It is about time we took a hard and objective look at the general aviation operating regulations and measure their validity . . . .

Fulminating Females: From ATRs to parachute riggers, women are fast making inroads into the skies of private aviation. Sans the fulmination of the Lib Ladies, more than 29,000 women held pilot certificates at the end of last year, more than three times as many as a decade earlier. Some 3,500 additional women work in aviation as mechanics, ground instructors, dispatchers, control tower operators, flight engineers and flight navigators. California, Texas and Illinois, with 3,448 women active in aviation, lead the country in female participation.

Simulator with all the moves: FlightSafety’s new Gulfstream I trainer is hinged in three axes, permitting motion in roll, pitch and heave. It is designed for initial transition and refresher training.

First BCA “Cause & Circumstance”
First BCA “Cause & Circumstance” 

The first BCA “Cause & Circumstance” appeared in the December 1970 issue. Originally, it was almost a verbatim recap of the NTSB releases. Over the years, the column took on the personality of its many authors who would try to make sense of the accident and extract “lessons learned.”


Navion Aircraft’s one airplane is the last of the 250 Rangemasters produced since 1961. The Rangemaster in turn is the latest version to date of the Navion.


With 5.5-psi differential, the Navajo’s pressurization system gives a sea-level cabin up to 12,375 ft. and a 10,000-ft. cabin at 29,000 ft. The wing is a laminar section with a 2.5-deg. geometric twist.

BCA 1970 Cover
Light from the winter sky reflects off a wet ramp and the highly polished aluminum finish of this Learjet 25C to produce this striking and unusual photograph. Also, now the top model of Gates' four-jet line. A 223-gal. fuselage tank gives the C model a 2,400-sm range with reserves. To make room for the tank, the rear pressure bulkhead was moved forward, shrinking cabin size but still allowing a tight 8-seat or a more comfortable 5-place seating arrangement.
Qualitron Aero Ad 1970
Qualitron Aero total capability gives you everything on time . . . any time. It’s your job to keep the Man happy. It’s our job to make your job easier. So “Hail to the chief [pilot].”
Jessica A. Salerno

Jessica is Executive Editor of Business & Commercial Aviation magazine. She started as Editor of ShowNews Online, Aviation Week's on-site trade show daily published at the Paris Air Show, NBAA Annual Convention, Singapore Air Show and at other significant aerospace gatherings.