"washer of kegs" wrote in message
...

Another ding against using Enterprise is the structure. If I recall
correctly, she has the same basic structure that Columbia and Challenger
had that is is heavier than the others. After the first couple of flights
by Columbia the last two (later three) spacecraft had redesigned wings
that
were stronger and lighter. therefore, If they did make Enterprise flight
worthy it would not help for ISS servicing missions. Have to check with
old timers here for details.

Yes, it was built to the same spec as Columbia. Note, Columbia had been
penciled in for a station flight.

It couldn't carry some of the heaviest loads, but it could carry some
lighter loads there.