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Harken Midrange Blocks: Use Chart
harken sailboat yatch equipment
Go to: Harken Blocks | Harken Midrange Blocks
Harken Midrange Blocks Selection Guide

Sailboat hardware specifications are for monohulls of moderate displacement.

Note: Multihulls and heavy displacement monohulls should reduce the maximum sail areas shown by as much as 25%. Please contact us if you have questions about hardware suitability.
- Mainsheet
- Genoa		 - Spinnaker
- Mast Base
 - Running Backstay
- Vang

Mainsheet:
Description
Maximum mainsail area
ft2
m2
End- boom System Single Attachment
500
46
  Multiple Attachment
540
50
Mid- boom System Single Attachment
425
39
  Multiple Attachment
500
46
Top
 

Genoa:
Description
Maximum genoa area
 
ft2
m2
 

Maximum 100% foretriangle sail area
Turning Blocks-180º Deflection
150
14
Turning Blocks-90º Deflection
215
20
Top
 

Spinnaker:
 
Maximum spinnaker area
Description
Standard Blocks
High-load Blocks
 
ft2
m2
ft2
m2
Sheet Blocks
Plain
1100
100
1300
120
Ratchet
900
83
-
-
Afferguy Blocks
Mounted Amidships
1100
100
1250
115
Mounted on Transom
900
83
1000
93
 
Maximum "I" dimension
Masthead Halyard Block
48 ft
14.6 m
53 ft
16 m
Top
 

Mast Base: 

Find your sailboat rig dimensions here.
Description
Standard Blocks
High-load Blocks
 
ft
m
ft
m
 
Maximum "P" dimension
Main Halyard Lead Block
48
14.6
52
15.8
 
Maximum "I" dimension
Genoa Halyard Lead Block
46
14
50
15.3
Spinnaker Halyard Lead Block
48
14.6
53
16
Top
 

Running Backstay:  
 
Maximum runner wire breaking strength
Description
Standard Blocks
High-load Blocks
 
lb
kg
lb
kg
Flying Block 2:1 System
3600
1633
4600
2086
Afferguy Block 1:1
2200
998
2800
1270
Afferguy Block 2:1 Becket
3600
1633
3600
1633
Afferguy Block 2:1 Single
4500
2040
5000
2268
 
Top
 

Vang:  
Description
Maximum mainsail area
 
ft2
m2
Fiddle Blocks
400
37
Triple Blocks
450
42

Top

Harken Midrange Blocks

If you need immediate assistance finding the appropriate sailing gear, sailboat hardware or sailing equipment for your boat, please call us toll free at: 1-888-756-8883, our crew is ready to help you.

Pictures and text courtesy of Harken Sailboat Equipment
Harken Store
harken yatch equipment, sailboat hardware

Store Newsletter

General Info


No Sales Tax at mauriprosailing.com
Only orders shipped to Texas are charged sales tax.

Price Matching
Buy with confidence. We do our best every day to ensure that our prices are the best you can find. If within 30 days you find a better price, we’ll refund the difference as a store credit. Read more.

International Shipping
We ship to most of the countries in Europe, Caribbean South America, Asia and Oceania.

Returns & Exchanges
Customer satisfaction is our top priority and we want you to be completely satisfied with your purchase. We ensure you a quick and hassle-free return or exchange process. More.
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