Downbearing

[Ric Brekne]

Hi folks

I'm working on a spreadsheet for calculating a few different things 
about downbearing and just wanted to check  a few numbers with you 
before going further then I am now.

Say you have the following string situation.  Assume a bridge width of 0.

Speaking length 50mm
back length   25 mm
Angle at the bridge 178 degrees.  (i.e. the angle created by the strings 
deflection upwards.)
Tension on the string lengths 160 lbs

Are the following results then valid ? 

Undeflected string length total 74,98984643
String angle from the front termination 1,333363422 degrees
String angle from the aliquot / hitchpin  0,666636578 degrees
String deflected Height  0,581737034 mm
Downwards force on the bridge. 5,584676 lbs

Thanks for any and all corrections.

RicB