unfortunately I can't open the video but I suggest there're some SB bombers captured by Finns
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Originally Posted by Mstcnc Russian planes usualy didnīt have intercoms, only this system with tubes where one could sent mesages in paper. |
no, the SB was the only bomber which featured this unique tube system, all other soviet bombers like Pe-2, Er-2 etc had intercom
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Excellent! Never knew that a vacuum based system was installed in a WWII airplane. Wouldn't it have been cheaper to just string the wire and amplifier (tubes are big, hot and suck up lots of power) or use the old navy version of just sound tubes. Seems overly complicated for the Russians and their austere designs.
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Well it could be austere built but in the 30ies time (maiden flight 1934) the SB was probably the best medium bomber in the world. Some features common in the western aircraft like intercom were not present in the SB to increase production speed.