[TowerTalk] velocity factor for Saxton 8315 and 8316

[Dick Green WC1M]

I have a couple of phasing lines for an old Colatcho 4-square controller
that I'd like to rebuild. They're made of Saxton 8315 and 8316 52-ohm cable.
I can't find any specs for these cables online. Does anyone know the
velocity factors?

 

I think these cables are similar to LMR-240, but don't know if the velocity
factors would be the same.

 

Any info would be appreciated.

 

73, Dick WC1M