par Vector Dim 29 Avr 2012 - 23:50
Pour info, un document sur la certification canadienne des sièges longitudinaux ("divans")
Divan Certification Requirements:
(a) The provisions of U.S. Code of Federal Regulations (CFR), Title 14, Part 25 as amended by, and including Amendment 25-64 shall be applicable;
(b) Occupant Retention: Acceptable occupant restraint shall be verified during dynamic testing. The forward seated occupant’s pelvis shall be restrained within the longitudinal seating position length of the divan and shall not move past the end of the divan structure at full load;
(c) Body-to-Body Contact: Contact between the head, shoulder, torso, and/or pelvis of one Anthropomorphic Test Dummy (ATD) on an adjacent seated ATD shall not be allowed during the tests conducted in accordance with United States Federal Aviation Regulation (FAR) § 25.562(b)(1) and (b)(2). Incidental contact of the feet, legs, arms and/or hands that will not result in incapacitation of the occupants is acceptable. Contact during rebound is allowed;
(d) Occupant Movement Envelope (OME): For the forward most seated occupant of the divan installation, an OME shall establish and account for the full range of occupants who will use the divan. This OME shall identify the forward-most movement of the ATD’s head, shoulder, torso, and pelvis. The OME shall be referenced to a structural point on the divan which can be referenced to the aircraft. The OME shall establish an occupant protection zone into which no interior component shall be installed in order to meet the occupant protection requirements for Head Injury Criterion (HIC), Thoracic Trauma Index (TTI), and lateral pelvic acceleration. If an interior component is installed in the OME, substantiation of the occupant protection requirements of (b), (c), (e) and (f) shall be verified;
(e) Thoracic Trauma Index (TTI): Unless it can be shown by 16g dynamic testing that no contact occurs between occupants and interior components, TTI for the affected occupants shall be substantiated by test or rationale based upon previous tests. When conducting an actual test to obtain a TTI value, an appropriate test device shall be used such as a Side Impact Dummy (SID) 50th Percentile Male as defined in United States 49 CFR part 572, subpart F [as amended at 63 FR 16140, Apr. 2, 1998, effective Sept. 1, 1998]. The TTI value shall not exceed 85g when the TTI data is processed in accordance with, United States 49 CFR part 571–Federal Motor Vehicle Safety Standards (FMVSS), § 571.214, S11.5(a)1 [as amended at 72 FR 51908, Sept. 11, 2007, effective Nov. 13, 2007];
(f) Lateral Pelvic Acceleration (LPA): Unless it can be shown by 16g dynamic testing that no contact occurs between occupants and interior components, LPA for the affected occupants shall be substantiated by test or rationale based upon previous tests. When conducting an actual test to obtain an LPA value, an appropriate test device shall be used such as a SID 50th Percentile Male as defined in United States 49 CFR part 572, subpart F [as amended at 63 FR 16140, Apr. 2, 1998, effective Sept. 1, 1998]. The LPA value shall not exceed 130g when the LPA data is processed in accordance with FMVSS § 571.214, S11.5(a) [as amended at 72 FR 51908, Sept. 11, 2007, effective Nov. 13, 2007];
(g) Shoulder Strap Loads: Where upper torso straps (shoulder straps) are used for divan occupants, tension loads in individual straps shall not exceed 1750 pounds. If dual straps are used for restraining the upper torso, the total strap tension load shall not exceed 2000 pounds;
(h) Certification Tests: As a minimum, the following structural tests shall be required for each divan:
(1) one 14g vertical test as per FAR § 25.562(b)(1) with ATDs specified by 49 CFR part 572, subpart B – 50th Percentile Male (known as the Hybrid II), or its equivalent;
(2) one 16g longitudinal test as per FAR § 25.562(b)(2) with Hybrid II ATDs; and
(3) to establish the Occupant Movement Envelope, a single 16g longitudinal test as per FAR § 25.562(b)(2) without floor deformation and yaw angle, with Hybrid II ATDs shall be required for each divan;
Note: All seat positions need to be occupied for the longitudinal tests.
(i) Aeroplane Flight Manual: A Supplement to the Aeroplane Flight Manual (AFM) shall be furnished containing a limitation to the effect that the operator must develop an operational procedure as required below, and obtain approval of this procedure from the applicable airworthiness authority.
(j) The required operational procedure shall inform each passenger that the particular aeroplane incorporating side-facing divans allowed under the terms of this exemption does not comply with all of the occupant safety standards mandated for the aeroplane type in regards to the side-facing divan.