2 General
Clasification Society 2023 - Version 9.37
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.1054 – Interim Guidelines for Wing-In-Ground (WIG) Craft - (adopted 16 December 2002)Amended by MSC/Circ.1126 - Annex - Interim Guidelines for Wing-In-Ground (WIG) Craft - Annex 8 - Procedures for Demonstration of Operational Safety - 2 General

2 General

  2.1 The craft should meet the applicable operational provisions in chapter 16 of part B of these Interim Guidelines and this annex for all extremes of passenger and load configurations for which certification is required. The limiting sea state related to the different modes of operation should be verified by tests and analyses of a craft of the type for which certification is requested.

  2.2 Operational control of the craft should be in accordance with procedures established by the owner or operator for operation in service. Procedures should be established for starting and shutting down the craft, moving the craft on the ground, transferring it to and from the water, and operating in displacement, transition, planing, take-off/landing, ground effect and any other airborne modes.

  2.3 The procedures established under 2.2 should:

  • .1 demonstrate that normal manoeuvres and craft responses to failures are consistent in performance;

  • .2 use methods or devices that are safe and reliable; and

  • .3 include allowance for any time lag in the execution of procedures that may reasonably be expected in service.

  2.4 Procedures required by this annex should be conducted over water of sufficient depth so that craft performance will not be affected.

  2.5 Tests should be conducted through a range of mass and centre of gravity configurations sufficient to establish a safe operating envelope for every craft.

  2.6 Testing should be conducted through a range of wind and sea conditions sufficient to establish a safe operating envelope for the craft in all of the circumstances described in 2.2.

  2.7 No manoeuvre during either normal or emergency operations should require exceptional operator skill or excessive force on the craft controls.

  2.8 The test regime assumes that passengers and cargo are secured during the transition, planing and take-off and landing stages of craft operation.


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