H 37.5 - Harken Roller Furling

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Frank Michell

I'm planing to install Harken MK III roller furling and the size of the boat indicates that I should order unit 1.5. The forestay is 9/32” and unit 1.5 can only be used with 5/16”. Unit 1 is recommended only for boats up to 36 ft. Can anybody offer recommendations what to do?
 
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Marc Honey

Bigger is almost always better

I believe I'd go up to the next size for the piece-of- mind in a blow rather than try to save money on what could turn out to be an undersized unit for your Hunter
 
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Larry S.

I installed one

Hello Frank, A Harken unit larger than the 1.5 system will not fit under the deck. I changed my old hood unit (single line) to a Harken 1.5 two years ago, I will tell you what I learned. First of all the Headstay is UNDERSIZED these boats should have a 5/16" headstay, Hunter used the smaller headstay so that they could use the furling unit from th H35,35.5 with an extra extrusion, so 1) the headstay should be changed (short money).The 1.5 system can handle the loads our boats generate because the chart that says boats up to 36 feet assumes a masthead rig, and also does not account for displacement.I consulted with many experts on this, and if you still want the furler below deck , other than replacing with another hood system, the 1.5 is the only one that will fit. What I bought to install the system was 1 headstay, 1 Harken 1.5 system, 1 extrusion kit, and One norseman fitting. The Rigging Loft Inc. cut everything to size, I did the install , and it works excellent. Also I sail in Buzzards bay Ma. we have winds in the afternoon of 18 to 25 knots, and I have furled, and partially furled in winds of 35 to 40 knots. I hope this all makes sense to you. LAS
 
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Frank Michell

Thanks to Larry S for tips on Harken 1.5

Many thanks Larry for this good information. The problem with 5/16" forestay is that the pin size on the mast is 1/2" and 5/16" forestay requires larger pin and modifications to the mast fitting.
 
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Larry S.

Forgot to add

If you check the pin that is up there, you should find that it too, is undersized and bushed to fit. Ichanged my pin at the top.LAS
 
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Tim gabrielse

They are the same

I installled a new Harken system on my Legend 37 last year. The correct system is the Unit one. The only difference is in the size of the pin. Look at the dimensions of the drum, etc. You will also have to order an extra foil piece. Tim Gabrielse
 
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