CWS B737
 

Gents/ladies question if I may,

Excerpt from my FCOM autoflight:

When approaching a selected altitude in CWS P with a CMD engage switch
selected, CWS P changes to ALT ACQ. When at the selected altitude, ALT HOLD
engages.

CWS R with a CMD engage switch illuminated can be used to capture a selected
radio course while the VOR/LOC or APP mode is armed. Upon intercepting the
radial or localizer, the F/D and A/P annunciations change from CWS R to
VOR/LOC engaged, and the A/P tracks the selected course.

Question: when flying in CWS pitch with APP mode selected, will, upon intercepting the gs, the F/D and A/P annunciation change from CWS P to GS engaged and the A/P track the gs( for example intercepting the gs from above with CWS P)?

My FCOM suggest that CWS P will only intercept a preselected altitude and CWS R will only intercept a vor/loc course but no mention is made of CWS P intercepting a gs.

I rarely if ever use CWS but I would like to find out the above question.

Thanks in advance!

Edited for gender correctness!

GS cannot be captured unless VOR/LOC is already captured.
You will capture GS in CWS P after VOR/LOC has been successfully captured. It's part of the APP logic.