Colin,
Writing that "trailers with OSB floors rot out in no time," is unnecessarily
alarmist. I just want to determine when Airstream used different
construction techniques and materials.
Obviously, Airstream has used different materials and construction
techniques for nearly every year of its existence.
In particular though:
1. When did Airstream first use OSB for the floor, and does Airstream still
use it?
2. When did Airstream first use self-tapping wafer head bolts in place of
elevator bolts, and are they still using them?
3. When did Airstream stop using Alclad aluminum and what have they used
since?
Forrest