Hunter 36 modifications

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Al - s/v Persephone

Al - s/v Persephone

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Jun 5, 2004
249
Hunter 36 Newburyport, MA
I've posted to the Improvements section of the H36 Knowledgebase a (long) description of the modifications I've made to my 05H36. As it says in the introduction: Like all boats, the H36 is full of various designer compromises. That's how Hunter provides so much boat for the money. She's my first new boat, and I put previous used-boat experience into fitting her out for offshore duty. For other new (or prospective) H36 owners, I offer a summary of what this one sailor considers useful enhancements. They are organized in sections as follows: 1. CONTEXT 2. SAILS 3. DECK GEAR 4. SAFETY GEAR 5. ANTENNAS 6. BELOW DECKS
 
Richard Bryer

Richard Bryer

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Jun 3, 2004
890
Hunter 34 Toronto, Ontario Canada
You can pump over 60GPM by hand?

I am really imperessed, Al- even if they are just American gallons!
 
Al - s/v Persephone

Al - s/v Persephone

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Jun 5, 2004
249
Hunter 36 Newburyport, MA
No, Richard - nor can the Rule 3700

The Rule 3700's rating of 3700GPH is for horizontal flow, only. Pumping against 2ft of head, Practical Sailor found that it could do 56% of that value. Since my manual pump outlet is almost 4 ft above the point where the pump is usually installed by Hunter, I don't think we can count on it delivering 60 GPM. I've tried the manual pump, and I can do 2 strokes every 3 seconds for a brief time, dropping to a stroke every 2 seconds after more than a few minutes. At 1/2 gal/stroke, I think I can keep ahead of the Rule 3700 for a fair while. Of course, if I have full bateries, the Rule's 14.5a drain will let it go long enough to overtake me. Fair winds
 
Franklin

Franklin

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Jul 20, 2005
2,422
Whitby 55 Kemah, Tx
Practical Sailor

I think is wrong. My numbers can't disclaim Practical Sailor numbers but it definately make me feel it is more powerful then that. Case in point: After I installed the 3700 as a secondary pump (primary is a 1500), I disconnected the batteries and then timed how long it took to fill up the bilge by disconnecting two thru-hull filters. It took 2 minutes and 26 seconds. Then I timed how long it took for the pumps to turn off once I connected the batteries. It took 25 seconds for the secondary pump to turn off (that was about 85% of the water) and another 30 seconds for the primary pump to turn off. I had about 2.5 head. Now I can't give you exact gallons but I watch the water come out and it was flowing fast through a 2" hose, shooting out about 3 to 4 feet from the hull. I was definately impressed. So much so that I kept doing it to watch it flow :)
 
Al - s/v Persephone

Al - s/v Persephone

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Jun 5, 2004
249
Hunter 36 Newburyport, MA
Very interesting/encouraging Franklin

Franklin - Sounds like PS may be pessimistic/conservative (not a bad thing with safety equipment). I certainly do have a 3700 on my list, and your results may move it up a notch in priority. Which thru-hulls? - the knotmeter paddlewheel and the depthsounder transducer? If they're the standard Raymarine/AirMar jobs, that would be a couple of almost 2" holes at least 1.5ft below the water line. Very encouraging, indeed. Fair winds, Al
 
Franklin

Franklin

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Jul 20, 2005
2,422
Whitby 55 Kemah, Tx
thru-hulls

It was the AC/heater and Refrig, both of which are just over the deep bilge. I think the thru-hulls are about an inch wide (maybe 7/8 or 3/4) and about 1.5 feet in the water (where the keel stub meets the hull). Maybe some day I'll do a measured test. I also put an alarm on the secondary pump so if it is ever used, I should know about it...aka...high water alarm. I sleep much better at night now that I've put those two on. I also feel much more comfortable way out in the gulf.
 
Franklin

Franklin

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Jul 20, 2005
2,422
Whitby 55 Kemah, Tx
not if

that man is single handling and needs to fix the leak. Kind of hard to do both at the same time.
 
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