🚀 go-pugleaf

In article <ewright.725129915@convex.convex.com> ewright@convex.com (Edward V. Wright) writes:
>In <!jt240c@rpi.edu> strider@clotho.acm.rpi.edu (Greg Moore) writes:
>
>>	In reality it sounds more like you are talking about DC-10,
>>DC-12, etc.
>>	Unless you are saying that a 747 is the same plane as a DC-3
>>was.
>>	If your claims are about 50 years from now, or even 20
>>eyars from now, I'll buy them.
>
>I think it would do you a world of good to go out to your local
>airport and look around.
>
>Do you have any idea how many DC-3s are still flying?  After 50
>years?
>
>And the 747, which you cite as an example of a modern airplane,
>is well over 20 years old!
>
And don't forget the G and H model B-52'as.  Those are at least 30 years
old and still flying.
I think I read somewhere that many old planes are so durable that the primary
problem in keeping them flying isn't how well they were designed but
maintaining a supply of spare parts (i.e. WWII aircraft still flyable today).

Supposedly this is a similar problem for the shuttle--only 5 flight
capable orbiters built in past 13 years makes a very rare craft, and thus
creates a maintainence problem due to their limited numbers.

Simon