United States Postal Service workers showing off their motorized scooters. 1917.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...s_fullsize.jpg
United States Postal Service workers showing off their motorized scooters. 1917.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...s_fullsize.jpg
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Seedtick (Sep 30, 2019)
12bolts (Sep 29, 2019)
TM51,
Wow! That's a blast from the past...XERB, the Mighty 1090! I used to listen to the Wolfman from my suburban bedroom in Orinda Calif in 69-71...sorta like nearly meeting the outside world...and through my shortwave listening, on a Lafayette Radio 5 band receiver from a kit, $40!, I sent a QSL to Radio Havana Cuba, and promptly got on their mailing list for their 'Granma' newsprint propaganda sheet...complete with copious stories and BW photos of Che Guevara; my mum was a bit worried, but the CIA never came calling... Thanks for the memory, cheers
Jim in South Coast NSW Aus
Toolmaker51 (Sep 30, 2019)
HomemadeTools.net founder (2012) and CEO
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Surprisingly, this compilation...
https://bluejacket.com/usn_avi_lta.html
indicates that the the earliest classes of Navy dirigibles (A, B, C) were filled with hydrogen. It wasn't until C-7 that helium was used.
I suspect the smaller of the two tubes was used to spill the water ballast so the ship could rise. The other tube might be a gas vent for descending. Maybe that tube is a fill tube. In either case, why the strange angle?
I think that they are tubes to allow air in and out of the "ballonets" (interior balloons) to control the pressure in the airship:
https://aviation.stackexchange.com/q...-a-zeppelin-nt
The ballonets within the airship also control the trim.
Last edited by Denis G; Sep 30, 2019 at 02:14 PM.
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