[Leica] Bird
CartersXRd
cartersxrd at gmail.com
Sun Jun 20 16:12:45 PDT 2021
wouldn’t want that one taking a dump on your windshield
ric
> On Jun 18, 2021, at 12:34 PM, Brian Reid <reid at mejac.carlsbad.ca.us> wrote:
>
>> Very good shot of a "Barksdale Bird". They are all much older than
>> the crews that fly them.
>
> My very first job after finishing graduate school was helping devise a way to manufacture retro electronic replacement parts for B-52s. B-52s were built using components that were state of the art at the time, but haven't been manufactured in many decades. The SAC had a large stash of replacement electronic parts in salt caves in Utah, but those were projected to be depleted by 2000 or so. There were studies about re-engineering the avionics, but they concluded that would be require too much testing, so launched a program to recover the ability to manufacture old parts. My personal involvement was in the remanufacture of a chip first sold in 1969 but available to Boeing for B-52 upgrades in 1968, the Intel 1101 SRAM.
>
> We sort of succeeded, but before long the machines involved in the manufacturing process were themselves obsolete and unmaintainable, and the Air Force decided to do it some other way. I was reminded of a science fiction story from my youth in which there was a battle between an army with jet airplanes and an army with pikes and poison darts.
>
> Then I was no longer able to buy mercury batteries for my Rollei 35; the problem had hit close to home.
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
More information about the LUG
mailing list