1 The release indicator, if fitted, should show
red until the boat is waterborne, at which point the indicator turns
green (in accordance with the amendments to the LSA Code adopted by resolution MSC.218(82)).
2 A safety pin, which must be pulled prior to
operation of the release control/lever/handle (herein referred to
as release control), should be incorporated in the release control.
This safety pin is in addition to any additional mechanical protection
(interlock) provided to protect against accidental or premature on-load
3 The release control should be located on the
right hand side of the helmsman.
4 The release control should be red in colour,
and the area immediately surrounding the control should be a sharply
contrasting light colour. No other control, handle or lever should
5 The release control is pulled, pushed, or rotated,
etc., to open the hook. The control should operate in a logical manner
and be prominently marked with an arrow to show direction of movement
of the control which will cause the hook to open.
6 The release control and its components should
be clearly labelled to aid understanding and operation.
7 The release control should have a shape, location
and operation so that it cannot be easily confused with any other
8 The engine control lever should be located on
the left hand side of the helmsman.
9 The control and steering station should be designed
and laid out so that controls and displays are unambiguous, accessible,
and easy to reach and use from the operator's normal seated position
(recommended reference: Standard ASTM F 1166-07, sections 9 and 10).
10 To avoid confusion, for release mechanisms
where on-load release is accomplished by means of a release control
at the helmsman station, only a single release control should be provided
for both off-load and on-load release.
11 These Guidelines are based on general design
principles to allow for flexibility to accommodate a range of designs,
and to foster innovation. In addition to the proposed marking requirements,
it may be beneficial to develop a standard symbol as required labelling
for the release control.