Is all sorts of advice was on the use of caps and lids from unnecessary bubbles and tubes. Here’s another — receiving beautiful shaped heads of bolts or nuts. Look at the picture. Depending on the conceived in the cover is inserted into the bolt (or nut, screwed on a greased bolt) and filled with epoxy resin.
Recommend to read
DE HAVILLAN DH.82 “TIGER MOTH”
Developing the concept of training plane DH.60, John. De Havilland has created a new aircraft of the same class - DH.60T. He was distinguished by a reinforced airframe, a modified...
A MEMORABLE ONE
In the summer of 1932 on the initiative of H. H. Polikarpov, who worked at the Central design Bureau began development of a promising fighter-monoplane with retractable landing gear. In...