Late to the party but anyway:
Further to atotiace's post on 7 October:
If the pressure is below the saturation pressure then the substance is superheated vapour.
Only when the pressure corresponds exactly to the saturation temperature is it possible for there to be a mixture of liquid and vapour.
A cubic metre of liquid inflow adds 1/0.000795 kilograms = 1257.86
As that cubic metre leaves as vapour to make room for the liquid out goes 1/0.01872 kilograms = 53.42
The net effect is to add 1204.44 to the trapped mass for every 1257.86 of inflow.
So to add the 72.18 noted upthread...
Further to GregLocock's quote from 'The Jet Engine':
(i) These numbers (1500 ft/sec, 1.5 relative Mach number) are correct (regardless of whether or not the book is regarded as a technical publication).
(ii) They have applied for the last forty years, since the first RB211s. They are broadly...