Pt. 91, App. F 14 CFR Ch. I (1-1-19 Edition) APPENDIX F TO PART 91 - HELICOPTER FLIGHT RECORDER SPECIFICATIONS Parameters Range Installed system 1 minimum accuracy (to recovered data) Sampling interval (per second) Resolution 3 read out Relative Time (From Recorded on Prior to Takeoff). Indicated Airspeed ..... 4 hr minimum .................. Section0.125% per hour ............ 1 ................................. 1 sec. VM in to VD (KIAS) (minimum airspeed signal attainable with installed pilot-static system). Section1,000 ft. to 20,000 ft. pressure altitude. 360Section ................................. Section3g to + 6g .................... Section5% or Section10 kts., whichever is greater. 1 ................................. 1 kt. Section100 to Section700 ft. (see Table 1, TSO C51-a). Section5Section ................................... Section0.2g in addition to Section0.3g maximum datum. 1 ................................. 25 to 150 ft. 1 ................................. 4 (or 1 per second where peaks, ref. to 1g are recorded). 2 ................................. 1Section 0.05g. 1 ................................. 1 ................................. 0.8Section 0.8Section Section10% Resolution 250 fpm below 12,000 ft. indicated. 1 ................................. 250 fpm below 12,000. Maximum Range ............. Maximum Range ............. Section5% ................................. Section5% ................................. 1 ................................. 1 ................................. 1%2. 1%2. Maximum Range ............. Section5% ................................. 1 ................................. 1%2. High/Low .......................... High/Low .......................... .......................................... .......................................... 1. 1. On/Off .............................. .......................................... 1. Engaged or Disengaged .......................................... 1. Engaged or Disengaged .......................................... 1. Fault/OK .......................... .......................................... 1. Full Full Full Full Full Section3% Section3% Section3% Section3% Section3% ................................. ................................. ................................. ................................. ................................. 2 2 2 2 2 Altitude ....................... Magnetic Heading ..... Vertical Acceleration .. Longitudinal Acceleration. Section1.0g ................................ Pitch Attitude ............. Roll Attitude ............... 100% of usable range ..... Section60 or 100% of usable range, whichever is greater. Section8,000 fpm ...................... Altitude Rate .............. Section1.5% max. range excluding datum error of Section5%. Section2Section ................................... Section2Section ................................... 0.03g. Engine Power, Each Engine Main Rotor Speed ..... Free or Power Turbine. Engine Torque ........... Flight Control Hydraulic Pressure Primary (Discrete) ..... Secondary - if applicable (Discrete). Radio Transmitter Keying (Discrete). Autopilot Engaged (Discrete). SAS Status-Engaged (Discrete). SAS Fault Status (Discrete). Flight Controls Collective 4 ................. Pedal Position 4 ......... Lat. Cyclic 4 ................ Long. Cyclic 4 ............. Controllable Stabilator Position 4. range range range range range ........................ ........................ ........................ ........................ ........................ ................................. ................................. ................................. ................................. ................................. 1%2. 1%2. 1%2. 1%2. 1%2. kpayne on VMOFRWIN702 with $$_JOB 1 When data sources are aircraft instruments (except altimeters) of acceptable quality to fly the aircraft the recording system excluding these sensors (but including all other characteristics of the recording system) shall contribute no more than half of the values in this column. 2 Per cent of full range. 3 This column applies to aircraft manufactured after October 11, 1991. 4 For all aircraft manufactured on or after April 6, 2012, the sampling interval per second is 4. [Doc. No. 18334, 54 FR 34328, Aug. 18, 1989; 54 FR 41211, Oct. 5, 1989; 54 FR 53036, Dec. 26, 1989; Amdt. 91-300, 73 FR 12565, Mar. 7, 2008; 73 FR 15280, Mar. 21, 2008; Amdt. 91-313, 75 FR 17046, Apr. 5, 2010] 858 VerDate Sep<11>2014 16:30 Jun 25, 2019 Jkt 247047 PO 00000 Frm 00868 Fmt 8010 Sfmt 8026 Q:\14\14V2.TXT PC31