When you do not have a suitable spanner to Unscrew the hex-head bolt will help out any screw with two nuts — preferably square-shaped.
Recommend to read
WITH THE RUBBER MOTOR AND WITHOUT
Schematic model of the airframe and the aircraft, as you know, started flying much earlier than their full-size prototypes. Paving the real aircraft's path in the sky, they are now...
AIRPLANE F-3
In our city of Kingisepp there was a gliding club ROSTO, where I worked as a pilot instructor since 1996. The club had two light aircraft and four gliders. But they were all far from new....
