L-1011 Flight Controls: Active Controls -500 (27-50)

Here is something that is only relevant to the -500 model of the Lockheed L-1011. The active control system provides a means of relieving loads caused by the increase in wing span on the -500. Load relief is accomplished by outboard ailerons symmetrical deflections programmed by the Active Control System (ACS). The ACS is dual channel with either channel capable of performing the proper programming of aileron deflections. The system uses a revised outboard aileron servo with 2 ACS series servos (1 and 2) mounted to each outboard aileron servo . Triple accelerometers located in each wing tip and forward cargo compartment ceiling (9 total) provide the acceleration signals, and 3 impact pressure (Q) sensors provide airspeed affect for gain scheduling. 

L-1011 General Aircraft Characteristics: Door Locations - Dash 500 (25-11)

There are six passenger doors; three on the each side/ There are no overwing exits. The doors are identified as L-1, L-2, L-3 and R-1, R-2 and R-3. These doors may be opened electrically or manually. The controls are on a panel inside and forward of each door. Manual controls are outside next to the door, near the upper frame. In addition, the L-1 door is equipped with an external handcrank receptacle and electrical switch.

All cargo doors are on the lower right hand side of the aircraft. They are identified as C-1A, C-2 and C-3. C1A and C-2 holds may accommodate containerized and/or bulk cargo and baggage.

Whenever any door, cargo or passenger, is not properly closed and locked, an appropriate signal is illuminated on the Flight Engineer's Annunciator panel.

L-1011 General Aircraft Characteristics: -500 Fuel Tank Arrangement (25-9)

The L-1011-500 has six fuel storage tanks. The are identified as Tank 1, Tank 1A, Tank 2L, Tank 2R, Tank3 and Tank 3A.

Thanks 1A and 3A are center section fuel tanks which have been added to allow the -500 increased fuel capacity and range.