nigelfe, on 29 February 2012 - 08:50 AM, said:
Presumably because they weren't needed. Observers are really only needed for opportunity targets. Such targets found by ground observers weren't really the sensible thing for RGA - that's what RFA were for, apart from the occasional strongpoint that needed 'heavy metal', but such targets weren't going anywhere. Air observers were another matter. Most CB targets came from HB lists, no observer required, the lists being compiled by artillery intelligence staff from the locations found by sound ranging, flash spotting and air photographs. Perhaps the most important job for RGA ground observers by late war was checking the guns' calibration and maybe datum shoots if required, although I suspect the ranges for ground obsn weren't ideal for good datums for CB targets.
Thank you for explaining that, although I don't understand why observers weren't needed if a target was from a HB list.
I don't know whether the following list of types of shoot from 293 SB's war diary (June - Nov 1918) might shed any light on the situation re ground observation:
Registration (rounds recorded against all)
Concentration Programme shoot
C.B. shoot with aerial observation
Instructional ranging shoot
Destruction of enemy huts/working party observed on roadway
Neutralization/General neutralization/Special Neutralization
Plane Observed 71 rds FOO continued
CB shoot with 29th FSC
Gas neutralization programme/tasks
CB shoot stopped owing to Signals ceasing abruptly
Calibration with 6oz additional 4th Charge N.C.T.
Registration with 29th Observation Group
The registration shoots had stopped by August, and there was a marked increase in neutralization shoots.
Thanks for bearing with me