Simulator Integration Planning: ATA 21 - Air Conditioning and Pressurization

ATA 21 is the Systems chapter for Air Conditioning and Pressurization (a complete listing of ATA chapter numbers can be found here). I decided to work through the simulator system integration according to the ATA chapters and that way everything stays in a somewhat logic order. The upper panel of the flight engineer console on the L-1011 is largely consumed by control and indicator elements for ATA 21 and ATA 36 (which is Pneumatic).

Below are images from the original documentation of the L-1011 simulator created by Singer Link Division in the 1980s.

Environmental Control System (ECS) Monitor Panel (*791/A9)

The simulator implements all component pieces of the ECS monitoring panel.

L-1011 Trainer - ECS Monitoring System (Component Labels)

Implemented Components

Gauges
M10 ... Pack Flow 
M11 ... ECS Temperature
M12 ... Cabin Temperature

Switches
S10 ... Pack Select 
S11 ... ECS Temperature Select 
S12 ... Cabin Zone Temperature Select    

Switch Lights
SDS26 . Cool Air Overboard
SDS27 . Cargo Heat Forward
SDS28 . Cargo Heat Mid
SDS29 . Cargo HEat Aft
SDS30 . Instrument Cooling

Annunciators
DS14 .. Avionic Air Forward
DS15 .. Avionic Air Mid

Cabin Pressurization (*791/A9)

Several of the gauges for the pressurization panel are photo simulations on the original Singer Link Division L-1011 simulator. These instruments will be replaced with the real flight hardware as part of the simulator outfit at the museum. However, several switch and annunciator elements are already fully implemented.

L-1011 Trainer - Pressurization (Component Labels)

Implemented Components

Gauges

M1  ... Forward Outflow Valve 

M2  ... Aft Outflow Valve

Switches

S1  ... Forward Outflow Valve Manual Control 

S2  ... Aft Outflow Valve Manual Control 

S9  ... Cabine Altitude Horn Cutout

Switch Lights

SDS1 .. Forward Outflow Valve Manual/Automatic

SDS2 .. Aft Outflow Valve Manual/Automatic

Annunciators

DS12 .. Forward Safety Valve 

DS13 .. Aft Safety Valve

Cabin Temp Control (*791/A9)

The Cabin Temperature and Engine Bleed Control panels are combined. The lower portion of the panel is the cabin temperature control panel. For the ATA 21 integration we will only cover the lower portion of the panel. 

Implemented Components

Gauges
M4  ... #1 Turbine Bypass Valve Position 
M5  ... #1 RAM AIR Valve Position
M6  ... #2 Turbine Bypass Valve Position 
M7  ... #2 RAM AIR Valve Position
M8  ... #3 Turbine Bypass Valve Position 
M9  ... #3 RAM AIR Valve Position

Switches
S1  ... #1 Valve Cool
S2  ... #1 Valve Warm
S3  ... #2 Valve Cool
S4  ... #2 Valve Warm

S5  ... #3 Valve Cool
S6  ... #3 Valve Warm

S7  ... Area Overheat

S8  ... Area Overheat Test

Switch Lights
SDS10 . #1 Pack Flow Control
SDS11 . #2 Pack Flow Control 
SDS12 . #3 Pack Flow Control
SDS13 . #1 Valve Control Auto and Manual
SDS14 . #2 Valve Control Auto and Manual
SDS15 . #3 Valve Control Auto and Manual
SDS16 . Left Hot Air 
SDS17 . Right Hot Air
SDS18 . Left Isolation Valve
SDS19 . Right Isolation Valve
SDS20 . Ground Cont
SDS21 . Flight Station Open Close
SDS22 . Forward Cabin Open Close
SDS23 . Mid Cabin Open Close
SDS24 . Aft Cabin Open Close
SDS25 . Galley Open Close

Annunciators
DS7 ... Area A Overheat
DS8 ... Area H Overheat
DS9 ... Area B Overheat 
DS10 .. Area C Overheat
DS11 .. Planum Duct Overheat