Appendix C to Part 27 - Criteria for Category A
14:1.0.1.3.14.9.201.1.23 : Appendix C
Appendix C to Part 27 - Criteria for Category A C27.1 General.
A small multiengine rotorcraft may not be type certificated for
Category A operation unless it meets the design installation and
performance requirements contained in this appendix in addition to
the requirements of this part.
C27.2 Applicable part 29 sections. The following sections of
part 29 of this chapter must be met in addition to the requirements
of this part:
29.45(a) and (b)(2) - General. 29.49(a) - Performance at minimum
operating speed. 29.51 - Takeoff data: General. 29.53 - Takeoff:
Category A. 29.55 - Takeoff decision point: Category A. 29.59 -
Takeoff Path: Category A. 29.60 - Elevated heliport takeoff path:
Category A. 29.61 - Takeoff distance: Category A. 29.62 - Rejected
takeoff: Category A. 29.64 - Climb: General. 29.65(a) - Climb: AEO.
29.67(a) - Climb: OEI. 29.75 - Landing: General. 29.77 - Landing
decision point: Category A. 29.79 - Landing: Category A. 29.81 -
Landing distance (Ground level sites): Category A. 29.85 - Balked
landing: Category A. 29.87(a) - Height-velocity envelope. 29.547(a)
and (b) - Main and tail rotor structure. 29.861(a) - Fire
protection of structure, controls, and other parts. 29.901(c) -
Powerplant: Installation. 29.903(b) (c) and (e) - Engines.
29.908(a) - Cooling fans. 29.917(b) and (c)(1) - Rotor drive
system: Design. 29.927(c)(1) - Additional tests. 29.953(a) - Fuel
system independence. 29.1027(a) - Transmission and gearboxes:
General. 29.1045(a)(1), (b), (c), (d), and (f) - Climb cooling test
procedures. 29.1047(a) - Takeoff cooling test procedures.
29.1181(a) - Designated fire zones: Regions included. 29.1187(e) -
Drainage and ventilation of fire zones. 29.1189(c) - Shutoff means.
29.1191(a)(1) - Firewalls. 29.1193(e) - Cowling and engine
compartment covering. 29.1195(a) and (d) - Fire extinguishing
systems (one shot). 29.1197 - Fire extinguishing agents. 29.1199 -
Extinguishing agent containers. 29.1201 - Fire extinguishing system
materials. 29.1305(a) (6) and (b) - Powerplant instruments.
29.1309(b)(2) (i) and (d) - Equipment, systems, and installations.
29.1323(c)(1) - Airspeed indicating system. 29.1331(b) -
Instruments using a power supply. 29.1351(d)(2) - Electrical
systems and equipment: General (operation without normal electrical
power). 29.1587(a) - Performance information. Note:
In complying with the paragraphs listed in paragraph C27.2
above, relevant material in the AC “Certification of Transport
Category Rotorcraft” should be used.
[Doc. No. 28008, 61 FR 21907, May 10, 1996]