Originally Posted by
dusk2dawn
Excuse my ignorance: if it wasn't Sperry what else would it be?
And "full" Sperry is with autopilot as opposed to just SAS/SCAS?
The "full" Sperry was Heli 1 & 2 plus Flight Director (autopilot). Some aircraft (BHJ) just had Heli 1 & 2 but no Flight Director.