Schedule of Spare Parts Manual and Exactor Controls...
Bare with me with this as there's a couple of things I need to clear up in my head... 
Schedule of Spare Parts Manual
Who would use this manual, Westland service engineers, maintenance units, ground crews...
Take a look at the scan below, it's the index of assemblies and on the right hand side you'll notice there are assembly drawing numbers...
The whole manual is plastered with drawing numbers...
Now would the MU's have had these drawings on site and if so, what medium would they have use, paper or might they have been on microfilm?
Exactor Controls
The engine throttle, mixture and airscrew speed were all operated hydraulically by the Exactor system as were the movable landing lights, does that mean the controls the pilot used to actuate the throttle, mixture and speed units were made by the Exactor Company or were they made say by Hobson to be hooked up to the Exactor transmitter?
Stu...