14 C.F.R. Appendix E to Part 135—Helicopter Flight Recorder Specifications
Title 14 - Aeronautics and Space
[Doc. No. 25530, 53 FR 26154, July 11, 1988; 53 FR 30906, Aug. 16, 1988]
Title 14: Aeronautics and Space
PART 135—OPERATING REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT
Subpart K—Hazardous Materials Training Program
Appendix E to Part 135—Helicopter Flight Recorder Specifications
---------------------------------------------------------------------------------------------------------------- Accuracy sensor Parameters Range input to DFDR Sampling interval Resolution \2\ readout (per second) read out----------------------------------------------------------------------------------------------------------------Time (GMT)...................... 24 Hrs............ ±0.125% Per 0.25 (1 per 4 1 sec Hour. seconds).Altitude........................ -1,000 ft to max ±100 to 1................. 5[foot] to certificated ±700 ft 30[foot]. altitude of (See Table 1, TSO- aircraft. C51a).Airspeed........................ As the installed ±3%........ 1................. 1 kt measuring system.Heading......................... 360°.......... ±2°.... 1................. 0.5°.Normal Acceleration (Vertical).. -3g to +6g........ ±1% of max 8................. 0.01g range excluding datum error of ±5%.Pitch Attitude.................. ±75°... ±2°.... 2................. 0.5°Roll Attitude................... ±180°.. ±2°.... 2................. 0.5°.Radio Transmitter Keying........ On-Off (Discrete). .................. 1................. 0.25 secPower in Each Engine: Free Power 0-130% (power ±2%........ 1 speed 1 torque 0.2% \1\ to 0.4% Turbine Speed and Engine Torque. Turbine Speed) (per engine). \1\ Full range (Torque).Main Rotor Speed................ 0-130%............ ±2%........ 2................. 0.3% \1\Altitude Rate................... ±6,000 ft/ As installed...... 2................. 0.2% \1\ min.Pilot Input_Primary Controls Full range........ ±3%........ 2................. 0.5% \1\ (Collective, Longitudinal Cyclic, Lateral Cyclic, Pedal).Flight Control Hydraulic Discrete, each .................. 1................. .................. Pressure Low. circuit.Flight Control Hydraulic Discrete.......... .................. 1................. .................. Pressure Selector Switch Position, 1st and 2nd stage.AFCS Mode and Engagement Status. Discrete (5 bits .................. 1................. .................. necessary).Stability Augmentation System Discrete.......... .................. 1................. .................. Engage.SAS Fault Status................ Discrete.......... .................. 0.25.............. ..................Main Gearbox Temperature Low.... As installed...... As installed...... 0.25.............. 0.5% \1\Main Gearbox Temperature High... As installed...... As installed...... 0.5............... 0.5% \1\Controllable Stabilator Position Full Range........ ±3%........ 2................. 0.4% \1\.Longitudinal Acceleration....... ±1g........ ±1.5% max 4................. 0.01g. range excluding datum error of ±5%.Lateral Acceleration............ ±1g........ ±1.5% max 4................. 0.01g. range excluding datum of ±5%.Master Warning.................. Discrete.......... .................. 1................. ..................Nav 1 and 2 Frequency Selection. Full range........ As installed...... 0.25.............. ..................Outside Air Temperature......... -50° C to ±2° c.. 0.5............... 0.3° c +90° C.----------------------------------------------------------------------------------------------------------------\1\ Per cent of full range.\2\ This column applies to aircraft manufactured after October 11, 1991.

