Re: GRIFFIN'S DRIVE FOR SHUTTLE-DERIVED

On Tue, 24 May 2005 23:09:09 -0400, in a place far, far away, John
Halpenny <j.halpenny@xxxxxxxxxx> made the phosphor on my monitor glow
in such a way as to indicate that:


>> > Of course in this case we are talking about a motor for use on an
>> > unmanned vehicle. The SRB is a whole other ball of wax, and expected to
>> > have a far higher level of reliability, even if that means overbuilding
>> > it to gain reliability at the expense of performance.
>>
>> Really? So Boeing builds "man-rated 747s" and "cargo-rated 747s" that have
>> a lower level of reliability?
>>
>> "I'm sorry paying customer, but your cargo landed up in the Atlantic. But
>> hey it was 10% cheaper to launch. Oh and I got a great deal on my car
>> insurance!"
>>
>> >
>> > Pat
>
>Actually, a lot of cargo 747s and other planes ARE less reliable. A large part
>of the freight fleet is made up of older, high time aircraft that are still
>technically legal but are not quite as well looked after as the latest versions.
>They are, of course, much cheaper.

Do you have any data that they are less reliable? They still have to
pass all the same C and D checks as new ones, and they still fly with
crew and passengers. Older aircraft are phased out because they
become too expensive to operate and maintain, not because they are
less reliable.
.

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