Cox Thimble Drome Ad
November 1953 Air Trails

November 1953 Air Trails
November 1953 Air Trails Cover - Airplanes and RocketsTable of Contents

These pages from vintage modeling magazines like American Aircraft Modeler, American Modeler, Air Trails, Flying Aces, Flying Models, Model Airplane News, & Young Men captured the era. I will be glad to scan articles for you. All copyrights hereby acknowledged.

Living one's whole life in the past is never a good thing, but it doesn't hurt to spend a little time harkening back to the roots of our fine hobby of aeromodeling. One of the most readily accessible venues is vintage magazines like American Modeler, Air Trails, etc. Looking at the of the old advertisements really brings back memories of the items I drooled over as a kid. $6.95 for a Space Bug isn't much in 2015 money, but according to the BLS's Inflation Calculator, that amount was equivalent to $61.10 in 1953. A newspaper delivery boy's pay made such purchases a little difficult, and my parents certainly were in no position to buy stuff for me. 

Cox Thimble Drome Ad

The Cleanest Sweep in the history of the Nationals

Proof of the Thimble Drome's superiority in the 1953 Nationals held in Philadelphia. T.D. engines placed as follows...

1/2A Speed Open - 1st, 2nd, 3rd and 5th places

1/2A Speed Senior -1st, 2nd and 3rd

1/2A Speed Junior - 1st, 2nd, 4th and 5th

1/2A Free Flight Open - 1st, 2nd, 4th and 5th

1/2A Free Flight Senior - 1st and 3rd

1/2A Free Flight Junior - 1st and 2nd

1/2A - PAA Free Flight Open - 1st, 3rd and 5th

1/2A - PAA Free Flight Junior and Senior - 3rd, 4th and 5th

1/2A - Clipper Cargo Junior and Senior Open - 2nd, 3rd, 4th and 5th

Just think! The first Thimble Drome engine for aircraft was sold less than a year ago, and already because of advanced engineering and research in the use of aircraft model methods, "T.D." engines lead the field and were able to win - out of nine 1/2A events - seven First places, five with Thermal Hoppers and two with Space Bugs, six Second places, two with Thermal Hoppers and four with Space Bugs, six Third places, three with Thermal Hoppers and three with Space Bugs.

19 out of 27 places - First to Third!

In these nine events, 31% of engines used were Thimble Drome engines, but they won 77.7% of First places and 66.2% Second and 66.2% Third.

Cox Thimble Drome Ad, November 1953 Air Trails - Airplanes and Rockets

Space Bug .049

Superior to ANY 1/2A engine in Power, Speed, Easy Starting and Efficient Operation. Flies in any position. No break-in required.


Thermal Hopper .049

Especially designed for Free Flight. Maximum performance and smoothness of flight.


Space Bug, Jr. .049

Crank it up and fly it! Ideal beginner's engine. Weighs only 1 1/2 oz. Tums 14,000 RPM.


For a Clean Start to a Clean Sweep it's Thimble Drome!

TD·1 Completely assembled - ready-to-fly plane. Equipped with Space Bug engine. Controls with slight motion of handle - stunts, glides, climbs! $19.95

2·Minute Assembly kit - $15.85

L. M. Cox Manufacturing Co., Inc.

Santa Ana, California



Posted May 17, 2015