(O-ring Seals) wrote in message ...
If you see two numbers for strength, pick the lesser one and halve
it , and
design from that .

Cheers (no qualifications) Cam...


Cam,

While that might sound like a good (and conservative) approach to the
design, he probably wants to build something that will be able to get
off the ground. If your suggested technique were to be used
throughout the aircraft, it would probably be too heavy to fly.


Depends on your risk tolerance. Bridges use 200%+ risk factor.
Airplanes generally use 150%. So multiply times 1.50.

CB