On 5/3/16 12:14, William Donzelli wrote:
> Nitpick: the Rolm 1600s are not really avionics machines, although > certainly quite a lot were put in aircraft. The military put them on > land and ship installations, thus the "U". If they were primarily for > aircraft installations, they would have been "AN/A**" and not "AN/U**" > (and also not so freaking heavy!). Yes, that was actually a major complaint of the hardware designers; building something that was "reasonably" light for aircraft, could pass the salt spray/corrosive environment tests for surface ships and the large-excursion vibration (aka "depth charge") tests for submarine service was a bitch -- as was coming up with something that could be both EMP-survivable and TEMPEST-worthy. -- Christian Kennedy, Ph.D. ch...@mainecoon.com AF6AP | DB00000692 | PG00029419 http://www.mainecoon.com PGP KeyID 108DAB97 PGP fingerprint: 4E99 10B6 7253 B048 6685 6CBC 55E1 20A3 108D AB97 "Mr. McKittrick, after careful consideration…"