ISO 11591:2019 pdf download

ISO 11591:2019 pdf download.Small craft — Field of vision from the steering position
1 Scope
This document specifies requirements for the field of vision from the steering position, forward (horizontally and vertically) and astern, for small craft up to 24 m length of hull (L H ) in accordance with ISO 8666.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 7010:— 1) , Graphical symbols — Safety colours and safety signs — Registered safety signs
ISO 8666:2016, Small craft — Principal data
ISO 10240:— 2) , Small craft — Owner’s manual
ISO 11192:2005, Small craft — Graphical symbols
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1 steering position
steering area (3.2) or steering location (3.3)
3.2 steering area
area on board a sailing craft (3.11) from which the operator (3.14) steers the craft
3.3 steering location
location on board a power-driven craft (3.12) or a human-powered craft (3.10) in which the operator (3.14) steers the craft and controls the propulsion
3.4 main steering position
steering position (3.1) as defined by the manufacturer and specified in the owner’s manual that meets the field of vision requirements of this document
6 Additional requirements for power-driven craft with steering wheel or equivalent fixed installed direction control
6.1 General requirements
A forward field of vision shall be provided directly in front of the operator’s eye position throughout the vertical field of vision and extending to at least 15° on either side of a line forward from the eye position (see Figure 1) to the obstructed vision distance as specified in 4.2.2. This may be achieved with normal movement of the operator’s head while maintaining control of the craft.
6.1.1 The requirements for low eye position can be met by an operator’s seat with vertical height adjustment.
6.1.2 From the designated main steering position, standing or seated, the minimum vertical field of vision shall extend from the horizontal with respect to the relevant high eye position to the unobstructed line of vision from the relevant low eye position (see Figures 2 and 3), while ensuring the horizontal arc of vision specified in 4.2.1.