
As the Russian proverb says, “water will find a hole”. And one that cannot be detected “by eye”. Help out in this case a bucket of water. Drop it into a “soggy” boot and squeeze, tightening the top shaft: emerging air bubbles from the holes will be given where it “hides”.
Recommend to read
CUTS WITHOUT MARKING
The fixture is designed without a preliminary marking to make notches in the hubs of the propeller blades. The base is cut out or milled from steel or aluminum. Margins of 10 mm...
THE ERA OF THE TRANSATLANTIC CRANKSHAFT
In the nineteenth century, the United States became a real "worker" in the field of underwater shipbuilding. To a large extent this contributed to the Civil war in which both sides...