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Paul,
Yep, I had every thing up-side-down even though the measure "tons
of operating hours" is a scientific term of art. OK, try this:
How often does an iPad break?March 16th, 2012
SquareTrade, the largest independent warranty provider in the
world, just completed an extensive report on iPad
breakage rates. Based on data compiled from 50,000 SquareTrade iPad
customers, the company found that iPad 2 owners reported breakage 3.5 times as
often as iPad 1 owners.
graph
The entire study is available for download here:http://www.squaretrade.com/pages/ipad-reliability-1203
for a discussion of the 3-parameter Weibull density
function and other avionic failure issues.
Grayhawk
PS This reply is TSO'd (Terminal Silliness Offering)
In a message dated 9/7/2013 12:07:10 P.M. Central Daylight
Time, pjdmiller@gmail.com writes:
you usually
grace us with interesting stats and data we can chew on. unfortunately,
this post adds little meat to either argument and zero backup to the
"spend more equals better reliability and function" nonsense we get from
the certified box makers.
If its good enough for American Airlines then I'm probably ok too.
Why don't you send your estimate of reliability to AA for a comment?
Unless you know more than the airline does...
Paul
Panel Avionics - produced only in the thousands, incredible costs
associated with R&D and certification, built to operate in a hostile
environment, error rate = errors / (flight hours X thousands)
Consumer electronics - produced in the millions with reasonable R&D
costs and much simpler certification, built to be operated by children
and old people, error rate = errors / (tons of operating hours X
millions)
Yep, looks comparable to me.
Grayhawk
PS getting two may not be
enough........... |
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