The British magazine “Practical Householder” reminds readers about the DS one the oldest methods-plan sections using the so-called Egyptian triangle with sides in the ratio 3:4:5. If you make a triangle out of durable nylon twine, combining stretches it with a metal SANB, we will get a reliable and accurate tool for marking angles.
Recommend to read
REZINOMOTORNAYA CLASS B-1
Rezinomotornaya model aircraft class b-1 designed and built in the aeromodelling circle of the pioneer Chkalovsky district of the city of Sverdlovsk schoolboy Vladimir Ivanov. Speaking...
“SHARK”, AND NOT SHOWING TEETH
Reconnaissance-torpedo bomber Blackburn Shark. In 1933 the air Ministry of great Britain has issued a document S. 15/33, which stipulates the requirements for a new scout-spotter-torpedo...
