[time-nuts] Dumb Cs beam question: mechanical shock sensitivity?

[Christopher Hoover]

Rick Karlquist wrote:
> This question reminds me of the HP5062 military Cs standard 
> and the Navy's "hammer blow test."  The Navy required HP to 
> pass this test which consisted of mounting the victim, I mean 
> the DUT, on a platform, and then whacking the platform with a 
> 400 lb "hammer".  The hammer was a weight on the end of a 
> pendulum that was raised up and then let go.  It was supposed 
> to simulate firing a 16 inch naval gun, or maybe it was to 
> simulate a depth charge in a submarine.

Ouch.  

(Those 16" guns were amazing, said to be equivalent to tossing a VW bug
up to 23 miles.)

> (I believe the 5062's mainly went into submarines).  

I imagine having a very good clock in a submarine would be useful for
all sorts of things.

-ch