Two-Way Propellers Lessen Air Torque (Dec, 1941)

There have been a good number of aircraft that used contra-rotating propellers.

Two-Way Propellers Lessen Air Torque

THE latest development in airplane propellers, the product of English inventors, is called the Rotol Constant-Speed Contra-Rotating Airscrew, shown at the right. Although appearing to be a six-bladed propeller, the contrivance actually consists of two three-bladed propellers which rotate in opposite directions. Among the advantages claimed for the new type prop are complete elimination of torque and improved handling during aerial acrobatics.

MI Tests the 1951 Kaiser Special (May, 1950)

MI Tests the 1951 Kaiser Special

“Good looks, real performance and lots of new ideas” should enable the new medium-priced Kaiser to give competitors a run for their money, says Tom McCahill.

THE 1951 Supersonic six-cylinder Kaiser Special—one of three all-new lines produced this year by Kaiser-Frazer —is quite an automobile. It has good looks, real performance and a lot of brand new little ideas which should cause competitors to take inventory of their own merchandise.

Cruise on Land and Tour on Water (Oct, 1921)

Cruise on Land and Tour on Water

AERONAUTICAL invention has conquered the air, and yet airplanes can run also on the earth. Nautical invention has* conquered the sea; but vessels cannot run also on the earth. Now, if the genius of man can make airships that will run upon land, why should it not also devise sea ships that will do the same thing?


Ninety seven years later and you’d be hard pressed to find a hundred electric cars in all of NYC.

Incidentally the $45 a month price would be equivalent to $1022 a month in 2012 dollars. While that sounds like a lot of money I’m sure you could find valet lots around central park that actually cost that much today.


ELECTRIC car owners and dealers in the Central Park district of New-York City have banded together and built a co-operative garage. One hundred electric machines have been placed in the new station and six dealers in electrics and accessories have taken show room along the street frontage. As the result, the fortunate ones have reduced storage expenses considerably.

Cockpit PT (Jun, 1946)

Cockpit PT

Take a tip from the AAF and relax yourself with these exercises which are done while sitting down.


THE next time you are on a long auto ride or plane flight with some chap who used to be in the Air Corps you may get a scare. He may suddenly hunch his shoulders, arch his back and then slump down in his seat, rotate his shoulders or violently nod his head back and forth. If this happens don’t bail out.

It’s not, combat fatigue, long woolen underwear or ants in his pants. He’s doing cockpit “PT’s” and a darn good habit it is, too.



OCEAN travelers who must have a horse-back ride before breakfast, are now accommodated on the Cunard liner Franconia. The gymnasium of that boat is equipped with several trotters, all run by little electric motors which are adjustable to produce any gait from a canter to a wild gallop.

Safety and Beauty in Manchuria Governor’s Car (Oct, 1921)

There is a Facebook photo album about this car. Anyway, according to the caption the car did not prevent the Governor from being deposed by Chiang Kaishek and assassinated by the Japanese.

Safety and Beauty in Manchuria Governor’s Car

AN American limousine has just been delivered to His Excellency Tsan Tso-Lin, governor general of Manchuria. It combines luxurious upholstery and beauty of design with armored protection.

A lining of chrome nickel steel was built inside the body. Shutters of the same material, which are rolled out of sight in the roof of the car, can be lowered to cover the windows. Portholes in the sides and back of the car make it possible to fire from within.

Metal Skins for AIRPLANES (Mar, 1931)

Metal Skins for AIRPLANES


In the Plane Talk department this month Major Arnold discusses several important developments in aviation, several of which are of British origin.

EVERY day that passes sees more airplanes in which cloth and wood construction has been discarded and metal substituted. At first the metal was used in wing and fuselage truss construction only but recently metal sheets have found great favor as wing and fuselage covering.

Yacht on Wheels Speeds 95 per on Land, Balks on Water (Sep, 1931)

Yacht on Wheels Speeds 95 per on Land, Balks on Water
A LUXURIOUS yacht on wheels but one that won’t float in water attracted much attention at the Indianapolis Motor Speedway during the 1931 Memorial Day gasoline derby. Built on a Pierce-Arrow chassis, the “boat” is 24 feet long, 5-1/2 feet wide, weighs 5,700 pounds, is powered with a 132-horsepower motor, and cost $18,000. The vehicle is a boat in every respect save locomotion. It has no doors, has twin screws in the stern, fog horns and an engine room bell, radio and life savers hanging on each side.


I wonder how many mechanics got carbon monoxide poisoning before these were standard…


Danger of carbon monoxide poisoning is eliminated in a New York City garage by a blower system with junction boxes at convenient points. To these boxes are attached lengths of flexible hose which are connected to the exhaust pipe of the automobile being tested or repaired. In this way the noxious fumes have no chance to escape into the workroom.