The BAC 1-11 did not require a RAT as flying controls had full manual reversion, Elecs supplied by battery and clock work instruments.
The L1011 Rat did not power the B and C systems. It supplyed B System only. Rat operation by Auto function with manual override.
"Two ATM control switches on FE's upper panel marked OFF-AUTO-ON-OVSP TEST positions. Normal selection AUTO"
These were Air Turbine Motors, which were powered from the pneumatic systems. One powered B sytem and the powered C system
Last edited by allthatglitters; 9th Nov 2003 at 03:21.