Have you developed something new in construction, control, or flying that might interest other modelers? Send a rough sketch - we'll redraw it and pay $5 for each one accepted. Sorry, we cannot acknowledge or send back submissions.
Improvements on spring-type clothes pin make it triple-acting modelers' clamp ... Glenn Graham, Los Gatos, Calif.
C. H. Beiger, Chicago, Ill., devised slotted dorsal fin for guide and "stop" for dethermalizer ... made of plywood or balsa sheets.
This useful soldering torch is hard to beat for light work reports Ivan Ortiz, New York, N.Y.
Trimming covering tissue, says Ward Morris, Brevard, N.C., is more easily done with emery board than razor blade.
Mustafa K. Artam, Istanbul, Turkey, devised simple apparatus for checking relative thrust of propeller blades ...
Clever device by Ernie Shailor, Detroit, Mich., permits easy external winding of radio model's escapement rubber motor. No dismantling or winder necessary ...
Rubber model prop-folding improvements by George Woolls, Bristol, England, assure flush folding, durability and increased efficiency - (Conventional tensioner)
Australian Norman Bell, Victoria, submits simple idea to pressurize racing engines via hollow rear crankcase cover screw ... (Does not affect rotor)