DNV DNV-ST-0498 PDF

General The following topics are covered:

— design approval

— materials

— production

— testing.

Requirements for operational procedures and training are not part of the scope.

Davit types

The standard covers the following types as related to the operation of the davits. The appropriate type shall be agreed with DNV prior to commencing design.

Work boat davit

Davit permanently installed on board a vessel designed for routine handling of a manned craft not intended to be used for passenger transport, characterized by:

— expected daily load cycles during established life

— capable of being launched while vessel is making headway

— to be handled by trained crew

— to handle a craft intended for a predefined working application(s).

Tender boat davits

Davit permanently installed on board a passenger vessel designed for routine handling of a manned craft intended to be used for passenger transport, characterized by:

— expected daily load cycles during established life

— to be launched while passenger vessel is stationary

— to be handled by trained crew

— to launch and recover a craft without passengers.

On a case by case each of the above-mentioned davit types may also combine the described functions with life-saving purpose. In these cases the design shall be examined in accordance with international maritime safety conventions and national and governmental regulations and with the applicable requirements in this standard, these shall be agreed prior to commencing design.

Equipment associated with davits This standard also covers the following equipment associated with davits:

— winches

— release mechanisms

— painter arrangements

— launching cradles.