[Milsurplus] Research Help Requested

[Kenneth G. Gordon]

I've been reading that PDF that someone here gave us a link to, the Henney 1956 reliability 
report. I find it extremely interesting from several viewpoints and can recommend it to any of 
us here.

Apparently, no one who "mattered" was concerned in the least about reliability of equipment 
during all of WWII, and it was only AFTER WWII that the reliability became a serious issue.

I was only somewhat surprised to learn that up to 60% of gear received by the military was 
unusable as received, for any of several reasons, poor packing being a big one.

In one case, a piece of equipment had been tested at the factory to a shock of 25 Gs, but 
when the stuff was shipped, the makers began receiving many reports of defective gear 
upon receipt. A factory rep was dispatched to follow the gear from the factory to its 
destination, and watched as the crate containing the gear was dumped off the truck, 4 feet 
to a concrete floor. When the crate was opened, and a shock sensor was examined, it was 
found that the gear suffered a shock of 35 Gs.

Some things I found interesting was that something like 14% of aircraft communications 
gear was affected, but that up to 84% of radar gear was affected.

Believe me, those of us who are involved in safeguarding the remaining WWII radio gear 
would do very well to read this entire paper. For one thing, it goes heavily into the 
components used in our radio gear, and secondly makes some extremely interesting 
suggestions concerning design.

I intend to read it all, and more than once.

Ken W7EKB

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