90 Su & 591 Su
TCW is now part of 90 SU - here is some background reading.
90 Signals Unit - Organisational Structure
RAF Digby - 591 Signals Unit
Officers are of the Eng (CE) branch / specialisation.
Engineer Officer - Engineering and technical careers - RAF Careers
Airmen are mostly from Trade Group 4 and are either Communication and Information Systems Technicians or Operator Maintainers.
Last edited by RAFEngO74to09; 17th Feb 2011 at 17:44.