Controls the assumption that the geometry of B31.3 welding and contour insert tees (sweepolets) meets the dimensional requirements of the code and can be classified as B16.9 tees.
True
Assume that the fitting geometry meets the requirements of Note 11, introduced in the A01 addendum, and a flexibility characteristic of 4.4*T/r will be used.
False
Use a flexibility characteristic of 3.1*T/r, as per the A01 addendum. This is the default setting.
In order to match runs made with CAESAR II prior to Version 4.40, set this option to True. Prior to Version 4.40, CAESAR II always used a flexibility characteristic of 4.4*T/r.