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Archive for March 2nd, 2018

"bolt on spud blades for better traction and bigger footprint", a sentence that only makes sense when discussing a WW1 tank

March 2nd, 2018 by admin

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"bolt on spud blades for better traction and bigger footprint", a sentence that only makes sense when discussing a WW1 tank

WW1 German Mastfernrohr (persiscope) used before anyone figured out tethered observation blimps/hot air balloons for battlefield recon

March 2nd, 2018 by admin

While other participants in the fighting invented various towers to raise a man above with binoculars – the Germans strained their heads and logically assumed that the periscope from the submarine was in general no worse – and it was not afraid of bullets.

the 25 meter tall sliding mast for the eight-knee lens was made, but thin – and an open optical channel was used to transmit the image.

The mast periscope was designed for observing over obstacles of between 30 and 85 feet in height, and could be rapidly erected or taken down and transported on its carriage. It essentially consists of three parts, namely a steel telescopic mast, and upper and lower optical systems that are attached to it.