Lewmar Hardware Selection Guide (PDF)

SELECTION GUIDE

Pick Control, Synchro, HTX and Racing block sizes by job and boat length, footblocks by winch size and sheet deflection, and traveller car size by application.

DocumentLewmar Hardware Selection Guide

FormatPDF · 2 pages · 0.4 MB

LanguageEnglish

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How to Choose Blocks by Boat Length Footblocks Traveller Cars Products

How to Read the Lewmar Hardware Selection Guides

Blocks by boat length

Four families: Control (30, 40), Synchro (50, 60, 72, 90, 105), HTX (50, 60, 72, 90) and Racing (60 HL, 80, 80 HL, 105 HL). The number is the sheave size in mm; HL = High Load.
Pick the block family, find the job (mainsheet, halyard, spinnaker sheet, vang…) and read across to your boat length.
Mainsheet rows are split into end-boom and mid-boom sheeting, and Control and Racing mainsheet rows into singles and double/triple blocks.

Footblocks and traveller cars

Footblocks are sized by the winch they lead to and by the sheet deflection through the block: 90° or 180°. At 180° the chart steps up a size at a smaller winch than at 90°.
Footblock sizes run from 60 Synchro up to 155 HL Racing (130 and 155 HL are footblock sizes only in this guide).
Traveller cars (sizes 0–3) are chosen by application (genoa, end-boom mainsheet, mid-boom or multihull), with the maximum towing purchase for each size.
Quick reference only, based on the average modern cruising yacht. Get the loadings from your designer and match them to the safe working load of the hardware.

Blocks – Selection by Job and Boat Length

Lewmar blocks selection guide: Control, Synchro, HTX and Racing blocks by application and boat length

Lewmar's own selection chart, reproduced from the PDF. In the Racing "Main sheet – mid boom singles" row, one bar is labelled "80 Racing" but drawn in the 80 HL Racing colour (as printed).

Footblock Selection by Winch Size

Lewmar footblock selection guide by winch size and sheet deflection, with block colour key

The PDF has a Hand load column but no block is shown in it.

Traveller Systems – Cars Selection Guide

Lewmar traveller cars selection guide by application, car size, towing purchase and boat length

Application & sheeting position	Car size	Towing purchase (maximum available)
Genoa	0	2:1
End boom mainsheet	0	2:1
Mid boom or multihull	0	2:1
Genoa	1	4:1 or 2:1 to winch
End boom mainsheet	1	4:1
Mid boom or multihull	1	4:1
Genoa	2	4:1 or 2:1 to winch
End boom mainsheet	2	5:1
Mid boom or multihull	2	5:1
Genoa	3	5:1 or 2:1 to winch
End boom mainsheet	3	5:1 or 2:1 to winch
Mid boom or multihull	3	5:1 or 2:1 to winch

Sail area, rig, heavy or light displacement and monohull vs multihull all change the specification. Get the loadings from your designer and match them to the safe working load of the hardware.

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.