K-7 is a Soviet multi-purpose aircraft pilot-giant design Bureau K. A. Kalinin. Was developed in the early 1930-ies, using original engineering solutions, new technologies and materials. Passed flight tests in 1933, however, in connection with the identified deficiencies in the design, and the disaster of the first produced aircraft, the test failed. In 1935, in connection with the change in the Soviet concept of aircraft construction, the construction of two new models of the machine was suspended, and then all work on the K-7 is discontinued.
Recommend to read
FIND AT A GLANCE
Who has ever dug in their boxes with all sorts of nuts or washers, he knows how sometimes it is difficult to find names-but the nut or washer that you need. My advice will save you...
SHEATH-AXE
Maybe for a log splitter and still one notch more or less on its working edge; do not depend on it, it will split the log or not. Another thing — the axe of a carpenter or woodcutter:...
