The quality of processing lumber a plane largely depends on the sharpness of the blade of the knife (or as it is called, is the glands). And because sharpened part is always from the body of the plane, when storing it is easy to damage. To protect the blade, it is possible to close the removable rubber ring.
Recommend to read
FROM DUSK TILL DAWN
This device is designed to automatically turn on exterior lighting after dark, and, accordingly, the automatic switch-off at dawn, which is always important, especially in terms of...
GLIDER BS-3
"If we turn the pages of aviation history, you will find that most modern aircraft as heavier than and lighter than air born motorless aircraft were gliders, airships — balloons. Motors...
