Correct Attachment
Incorrect Attachment
CONTENTS:
1.0 Lashing
Options
2.0 Becket
Options
3.0 Care & Maintenance
4.0 Definitions
Ronstan BB Orbit Blocks™ feature a unique Lashing head. Building on the latest
trends in grand prix dinghy and ocean racing, it replaces the steel head post and
shackle arrangement of traditional blocks.
• Important: In order to meet breaking loads this block must be lashed with the
custom lashing, strop or link passing through the hub.
• The line must be passed down through the head, out through the cheek, through
the hub, back in through opposite cheek and back up and out through the head.
Repeat for lines that require more than one strand to meet load rating.
• The Maximum Working Load and Breaking Load of the assembly (Block +
Lashing) is generally limited by the strength of the rope and the joining method.
Knots, splices, stitching, etc. will generally have a lower Breaking Load than the
rope itself. It is possible to use up to 4mm (5/32”) line for lashing the RF25109
running the lashing around as a single strand, but a neater result with more secure
knotting can often be achieved by using a smaller line size (e.g. 2mm) wound
through multiple times.
• For best results, the lashing must be attached to a mounting point with a smooth,
well rounded profile.
• Avoid attaching directly to fittings with sharp edges or rough surfaces that may
damage the lashing through abrasion or point loading. For this situation use a
shackle with a smooth surface between the lashing and the fitting. Regularly
inspect the lashing for damage, if found replace immediately.
RF25109 Series 20 BB Orbit Block
™
,
Lashing Head User Instructions
