Utility
Audio Warning Signals
Audio warning signals from the weapon system are available to either or both crewmen through the ICS. Each signal has a distinct tone. A visual display accompanies most audio signals so that the flight crew can expect the tone and interpret its meaning. Most audio signals may be attenuated or turned off if not required, allowing the flight crew to concentrate on more critical tones.
Critical warning tones cannot be attenuated by any mode of ICS operation. The table below provides a glossary of audio warning signals available within the aircraft weapon systems. Approximately 1 minute of warmup is required to achieve normal operating temperature.
| Tone | Position | Controls | Function | Characteristics |
|---|---|---|---|---|
| Sidewinder | Pilot | Volume/TACAN Command Panel | Missile lock tone | High frequency, increases with lockon indication. |
| ALR-67 | Pilot & RIO | Volume/TACAN Command Panel (pilot) & Radar Warning Receiver Panel (RIO) | Threat indication | Low to high frequency, determined by threat level. |
| AN/ALQ-126 | RIO | DECM Control Panel | Threat indication | Raw PRF sound. |
| Radar Altimeter | Pilot & RIO | Radar Altimeter Indicator (Pilot) | Low altitude warning | 1 000 Hz tone, modulated at 2 pulses per second for 3 seconds. |
| TACAN | Pilot & RIO | TACAN Control Panel | Station identification | TACAN station Morse code. |
| AN/ARC-159 (UHF 1) | Pilot & RIO | UHF 1 Control Panel (Pilot) & RIO Communication/TACAN Command Panel | Own aircraft DF transmission | 1 020 Hz |
| AN/ARC-182 (V/UHF 2) | Pilot & RIO | V/UHF 2 Control Panel (RIO) & Volume/TACAN Command Panel (Pilot) | Other aircraft DF transmission | 1 020 Hz, Morse code or voice. |
| Engine Stall/Overtemperature | Pilot | None | Engine stall detection & EGT overtemp warning | Modulated 320 Hz for 10 seconds or until fault is removed if before. |
Oxygen System
The F-14 carries one or two 10-liter liquid oxygen bottles providing oxygen to the crew when needed.
The oxygen supply is controlled on the pilot Oxygen-Vent Airflow Control Panel and RIO Oxygen-Vent Airflow Control Panel respectively. Both panels contain an OXYGEN switch that sets oxygen supply to ON or OFF.
Liquid oxygen remaining is shown on the Liquid Oxygen Quantity Indicator on the pilot’s right side console. The gauge shows remaining liters of liquid oxygen up to 20 liters (if two bottles are installed). The indicator is electrically driven and if it receives no power an OFF flag will be visible and it will display 0 liters remaining.
Additionally the RIO Caution-Advisory Panel has the OXY LOW caution light which illuminates when the liquid oxygen quantity is below 2 liters.
During the INST test on the MTPanel the liquid oxygen meter shows 2 liters and the OXY LOW caution light illuminates.
Canopy
The rear-hinged F-14 canopy is operated hydraulically and pneumatically. Controls are present in both the pilot and RIO cockpits.
See Canopy Control Handle or Canopy Control Handle for the controls.
The CANOPY caution light on both the Pilot Caution - Advisory Indicator and the RIO Caution-Advisory Panel illuminates if the canopy is not in the down and locked, secured position.