[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR133.41]

[Page 646]
 
                     TITLE 14--AERONAUTICSAND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 133--ROTORCRAFT EXTERNAL-LOAD OPERATIONS--Table of Contents
 
                  Subpart D--Airworthiness Requirements
 
Sec. 133.41  Flight characteristics requirements.


    (a) The applicant must demonstrate to the Administrator, by 
performing the operational flight checks prescribed in paragraphs (b), 
(c), and (d) of this section, as applicable, that the rotorcraft-load 
combination has satisfactory flight characteristics, unless these 
operational flight checks have been demonstrated previously and the 
rotorcraft-load combination flight characteristics were satisfactory. 
For the purposes of this demonstration, the external-load weight 
(including the external-load attaching means) is the maximum weight for 
which authorization is requested.
    (b) Class A rotorcraft-load combinations: The operational flight 
check must consist of at least the following maneuvers:
    (1) Take off and landing.
    (2) Demonstration of adequate directional control while hovering.
    (3) Acceleration from a hover.
    (4) Horizontal flight at airspeeds up to the maximum airspeed for 
which authorization is requested.
    (c) Class B and D rotorcraft-load combinations: The operational 
flight check must consist of at least the following maneuvers:
    (1) Pickup of the external load.
    (2) Demonstration of adequate directional control while hovering.
    (3) Acceleration from a hover.
    (4) Horizontal flight at airspeeds up to the maximum airspeed for 
which authorization is requested.
    (5) Demonstrating appropriate lifting device operation.
    (6) Maneuvering of the external load into release position and its 
release, under probable flight operation conditions, by means of each of 
the quick-release controls installed on the rotorcraft.
    (d) Class C rotorcraft-load combinations: For Class C rotorcraft-
load combinations used in wire-stringing, cable-laying, or similar 
operations, the operational flight check must consist of the maneuvers, 
as applicable, prescribed in paragraph (c) of this section.

[Doc. No. 1529, 29 FR 603, Jan. 24, 1964, as amended by Amdt. 133-5, 41 
FR 55475, Dec. 20, 1976; Amdt. 133-9, 51 FR 40709, Nov. 7, 1986]