The lightest three-layer plate with a honeycomb filler can be obtained, if you use this hint. The middle layer is empty matchboxes glued in a checkerboard pattern, for example, the sheet of hardboard and then covered with another sheet of paper, also greased with glue.
Recommend to read
AN-2E
Perhaps the most original and unexpected modification of the biplane was a project of winged An-2E. Currently, a large number of An-2 aircraft put into storage, mainly due to the...
WINCH: PLOWMAN, KARCZEWSKI AND… MINESWEEPER
"Harnessed... the winch" — under this title was published in the "Modeller-designer" № 8, 1995, the material on the system that I designed of selectresponse. Not the last role in it...
