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F16C/D (BLOCKS 50 AND 52+). FLIGHT MANUAL (15 OCTOBER 2002) - page 23

T.O. GR1F16CJ1

1168

1F-16X-1-2003X

Ejection Seat Performance

MINIMUM EJECTION ALTITUDE vs SINK RATE AND SPEED

NOTES:

ZERO PILOT REACTION TIME

WINGS LEVEL

SEA LEVEL

95th PERCENTILE PILOT

MINIMUM EJECTION AL

TITUDE AGL FEET

SINK RATE FEET PER MINUTE

MODE 1

MODE 2

600

500

400

300

200

100

2000

4000

6000

8000

10,000

INVERTED

UPRIGHT

Figure

168.(Sheet 2)

T.O. GR1F16CJ1

1169

1F-16X-1-2004X

Ejection Seat Performance

NOTES:

ZERO PILOT REACTION TIME

SEA LEVEL

MINIMUM EJECTION AL

TITUDE AGL FEET

DIVE ANGLE DEGREES

MODE 1

MODE 2

1600

1400

1200

1000

800

600

400

200

95th PERCENTILE PILOT

MINIMUM EJECTION ALTITUDE vs SPEED, DIVE ANGLE,

AND BANK ANGLE

Figure

168.(Sheet 3)

T.O. GR1F16CJ1

1170

1F-16X-1-2005X

Ejection Seat Performance

MINIMUM EJECTION ALTITUDE vs DIVE ANGLE AND SPEED

NOTES:

ZERO PILOT REACTION TIME

WINGS LEVEL

FORWARD SEAT DURING DUAL,

95th PERCENTILE PILOT

2800

2400

2000

1600

1200

800

400

2800

2400

2000

1600

1200

800

400

DIVE ANGLE DEGREES

MODE 1

MODE 2

MODE 1

MODE 2

UPRIGHT

INVERTED

SEA LEVEL

MINIMUM EJECTION

TITUDE AGL FEET

MINIMUM EJECTION

TITUDE AGL FEET

SEQUENCED EJECTION

Figure

168.(Sheet 4)

T.O. GR1F16CJ1

1171

1F-16X-1-2006X

Ejection Seat Performance

MINIMUM EJECTION ALTITUDE vs SINK RATE AND SPEED

NOTES:

ZERO PILOT REACTION TIME

WINGS LEVEL

FORWARD SEAT DURING DUAL,

SEQUENCED EJECTION

1000

800

600

400

200

2000

4000

6000

8000

10,000

SINK RATE FEET PER MINUTE

MODE 1

MODE 2

UPRIGHT

INVERTED

SEA LEVEL

MINIMUM EJECTION AL

TITUDE AGL FEET

1200

95th PERCENTILE PILOT

Figure

168.(Sheet 5)

T.O. GR1F16CJ1

1172

1F-16X-1-2007X

Ejection Seat Performance

NOTES:

ZERO PILOT REACTION TIME

SEA LEVEL

MINIMUM EJECTION AL

TITUDE AGL FEET

DIVE ANGLE DEGREES

MODE 1

MODE 2

2800

2400

2000

1600

1200

800

400

MINIMUM EJECTION ALTITUDE vs SPEED, DIVE ANGLE,

AND BANK ANGLE

FORWARD SEAT DURING DUAL,

SEQUENCED EJECTION

95th PERCENTILE PILOT

Figure

168.(Sheet 6)

T.O. GR1F16CJ1

1173

OXYGEN SYSTEM

PX III

The oxygen system consists of an onboard oxygen

generating system (OBOGS), a backup oxygen supply

(BOS), and a regulated 50 cubic inch emergency

oxygen supply (EOS) bottle.

ONBOARD OXYGEN GENERATING SYSTEM

(OBOGS)

The OBOGS is a molecular sieve/concentrator that

uses an adsorption filtering process to remove

nitrogen from the ECS supplied bleed air and provide

oxygen rich breathing gas. The system is capable of

producing 95 percent oxygen with the balance being

argon and other inert gases. For normal operation the

concentrator provides oxygen to a compatible diluter

demand breathing regulator. The system pressure to

the regulator can be read on a pressure gage located

on the face of the regulator. The normal operating

pressure range is 2540 psi.

OBOGS BACKUP OXYGEN SUPPLY (BOS)

If the OBOGS is not producing oxygen due to loss of

ECS input air to the concentrator, concentrator

failure, or loss of power to the concentrator, the

system will revert to stored oxygen in the sieve filled

plenum, called the backup oxygen supply (BOS). The

BOS will last for a period of 3 to 5 minutes depending

on altitude and breathing rate. Resupplying a

depleted BOS requires up to 10 minutes. After the

BOS has been expended and system pressure falls

below 5 psi, the OXY LOW warning light, located on

the right glare shield, illuminates.

OBOGS MONITOR

The OBOGS is monitored by an oxygen monitor with

builtintest (BIT) circuitry. The oxygen monitor

samples oxygen for the correct oxygen concentration

at a particular altitude from 10,000 to 50,000 feet.

The OBOGS monitor provides a signal to turn on the

OXY LOW warning light if the partial pressure of

oxygen (PPO

) from the concentrator drops below a

preset alarm range or if BIT detects an internal

monitor fault. The monitor provides low oxygen

partial pressure warning at either of two thresholds

based on the position of the diluter lever located on

the regulator. Low PPO

can be caused by a

concentrator malfunction or a clogged input filter on

the concentrator.

EMERGENCY OXYGEN SUPPLY (EOS)

The emergency oxygen supply (EOS) consists of a

highpressure bottle mounted on the left side of the

ejection seat. The EOS is a regulated oxygen supply

that will last for 8 to 12 minutes depending on

altitude and breathing rate. The hose is routed to the

right side of the seat. The system is activated:

Automatically upon ejection.

Manually by pulling the emergency oxygen green

ring located on the left aft side of the seat.

A gauge on the EOS indicates the stored oxygen

pressure.

OBOGS BUILTINTESTS (BIT's)

The OBOGS monitor has four BIT programs:

powerup BIT, periodic BIT, manual BIT, and

pneumatic BIT. All BIT programs are for testing the

monitor's circuitry only.

OBOGS PowerUp BIT

Powerup BIT is performed automatically upon

powerup during engine start. The powerup BIT

includes a two minute warmup period during which

the OXY LOW warning light is inhibited. The OXY

LOW warning light illuminates at the end of the

powerup BIT if a monitor failure is detected.

OBOGS Periodic BIT

Periodic BIT is performed automatically during

normal operations. If a monitor fault is detected, the

OXY LOW warning light will illuminate.

OBOGS Manual BIT

Manual BIT is activated by momentarily positioning

the OBOGS BIT switch, located on the TEST panel,

to BIT. This can be accomplished to perform a monitor

check or to determine the cause of an OXY LOW

warning light.

Selecting BIT causes the OXY LOW warning light to

illuminate for ten seconds. If no faults are detected,

the warning light will go off. If a monitor fault is

detected, the OXY LOW warning light will remain on

with a continuous indication as long as the fault

condition exists.

T.O. GR1F16CJ1

1174

If the OBOGS BIT switch is positioned to BIT while

the OXY LOW warning light is on, the warning light

will remain on steady if the problem is due to a low

PPO

condition or low regulator pressure. It will flash

one second on and one second off if a monitor fault was

detected. If a monitor fault exists, subsequent

positioning of the OBOGS BIT switch to BIT will

toggle the warning light from flashing to continuous.

OBOGS Pneumatic BIT

Pneumatic bit is a maintenance function.

PRESSURE BREATHING FOR G (PBG)

The PBG mode of the oxygen regulator provides

pressure breathing above 4g's to enhance g tolerance

and reduce fatigue. Air pressure from the antig valve

is used by the oxygen regulator to control the amount

of pressurization supplied to the oxygen mask,

helmet, and vest. A malfunction in the OBOGS

system can result in a degradation in PBG system

performance.

OXYGEN SYSTEM CONTROLS AND INDICATORS

Refer to figure 169 for a description of the oxygen

system controls and indicators.

OXYGEN SYSTEM SCHEMATIC

Refer to figure 170.

GR1F-16CJ-1-1073X37

Oxygen System Controls and Indicators

(Typical)

OXYGEN REGULATOR FLOW Indicator

OXYGEN SUPPLY Indicator

OBOGS BIT Switch

OXY LOW Warning Light

Supply (Mode) Lever (PBG Lever Lock)

C DF

7. Diluter Lever

8. EMERGENCY Lever

OBOGS Caution Light

CABIN PRESS ALT

PX III

Figure 169.(Sheet 1)

T.O. GR1F16CJ1

1175

Oxygen System Controls and Indicators

PX III

(Typical)

CONTROL/INDICATOR

POSITION/INDICATION

FUNCTION

1. CABIN PRESS ALT

C DF

050,000 feet

Indicates cockpit altitude

2. OXYGEN Regulator FLOW

Indicator

White

Indicates oxygen flow

Indicator

Black

Indicates no oxygen flow

3. OXYGEN SUPPLY Indica

tor

Oxygen pressure (psi)

Indicates gaseous oxygen pressure at regula

tor in psi

4. OBOGS BIT Switch

BIT

Initiates OBOGS manual BIT

5. OBOGS Caution Light (am

ber)

Indicates that ECS air pressure has dropped

below 10 psi

6. SUPPLY (Mode) Lever

PBG (lever lock)

Provides oxygen supply to mask, helmet

bladder, and vest. Pressure breathing as a

function of g is available

Provides oxygen supply to mask, helmet

bladder, and vest. Pressure breathing as a

function of g is not available

OFF

Turns off oxygen supply

7. Diluter Lever

NORM

Provides regulated mixture of cockpit air and

oxygen as determined by cockpit altitude

100%

Provides maximum amount of oxygen

8. EMERGENCY Lever

NORM

Provides normal operation. Positive pressure

is provided if cockpit altitude exceeds

28,00032,000 feet

EMERGENCY

Provides maximum amount of oxygen under

positive pressure. This position is used by the

pilot to test for leaks

TEST MASK

Provides maximum amount of oxygen under

positive pressure. This position is used for

testing by life support maintenance

9. OXY LOW Warning Light

(red)

Indicates that partial pressure of oxygen

(PPO

) is low, the presence of a BIT detected

monitor fault, or that regulator pressure has

dropped below 5 psi

Figure 169.(Sheet 2)

Content .. 21 22 23 24 ..

F16C/D (BLOCKS 50 AND 52+). FLIGHT MANUAL (15 OCTOBER 2002) - page 23

F16C/D (BLOCKS 50 AND 52+). FLIGHT MANUAL (15 OCTOBER 2002) - page 23