| Parameters
| Range
| Installed system
1 minimum accuracy (to recovered data)
| Sampling interval (per second)
| Resolution
4 read out
|
|---|
| Relative time (from recorded on prior to takeoff) | 25 hr minimum | ±0.125% per hour | 1 | 1 sec.
|
| Indicated airspeed | Vso to VD (KIAS) | ±5% or ±10 kts., whichever is greater. Resolution 2 kts. below 175 KIAS | 1 | 1%
3.
|
| Altitude | −1,000 ft. to max cert. alt. of A/C | ±100 to ±700 ft. (see Table 1, TSO C51-a) | 1 | 25 to 150
|
| Magnetic heading | 360° | ±5° | 1 | 1°
|
| Vertical acceleration | −3g to + 6g | ±0.2g in addition to ±0.3g maximum datum | 4 (or 1 per second where peaks, ref. to 1g are recorded) | 0.03g.
|
| Longitudinal acceleration | ±1.0g | ±1.5% max. range excluding datum error of ±5% | 2 | 0.01g.
|
| Pitch attitude | 100% of usable | ±2° | 1 | 0.8°
|
| Roll attitude | ±60° or 100% of usable range, whichever is greater | ±2° | 1 | 0.8°
|
| Stabilizer trim position | Full range | ±3% unless higher uniquely required | 1 | 1%
3.
|
| Or
| | | | |
| Pitch control position | Full range | ±3% unless higher uniquely required | 1 | 1%
3.
|
| Engine Power, Each Engine
| | | | |
| Fan or N1 speed or EPR or cockpit indications used for aircraft certification | Maximum range | ±5% | 1 | 1%
3.
|
| Or
| | | | |
| Prop. speed and torque (sample once/sec as close together as practicable) | | | 1 (prop speed), 1 (torque)
| |
| Altitude rate
2 (need depends on altitude resolution) | ±8,000 fpm | ±10%. Resolution 250 fpm below 12,000 ft. indicated | 1 | 250 fpm Below 12,000
|
| Angle of attack
2 (need depends on altitude resolution) | −20° to 40° or of usable range | ±2° | 1 | 0.8%
3
|
| Radio transmitter keying (discrete) | On/off | | 1
| |
| TE flaps (discrete or analog) | Each discrete position (U, D, T/O, AAP) | | 1
| |
| | Or
| | | |
| | Analog 0-100% range | ±3° | 1 | 1%
3
|
| LE flaps (discrete or analog) | Each discrete position (U, D, T/O, AAP) | | 1
| |
| | Or
| | | |
| | Analog 0-100% range | ±3° | 1 | 1%
3.
|
| Thrust reverser, each engine (Discrete) | Stowed or full reverse | | 1
| |
| Spoiler/speedbrake (discrete) | Stowed or out | | 1
| |
| Autopilot engaged (discrete) | Engaged or disengaged | | 1
| |