Folbot rudder downhaul

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RangerTim
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Posts: 232
Joined: Sun Jan 11, 2015 4:10 pm

Folbot rudder downhaul

Post by RangerTim »

Folbot rudder downhaul.

For paddling the stock Folbot rudder works fine. For sailing it can be a problem. I find that when I am zipping along the rudder trails back in the water. When I want to turn, or in the case of following seas, prevent the boat from turning, I am fighting the rudder. A great deal of pressure can be required to move it or maintain its position. The trailing rudder is trying to move a great deal of water. I needed a rudder downhaul.

I have cobbled together one that, while not slick, works.
Attachments
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107736623_153793_compress38.jpg (52.33 KiB) Viewed 1135 times
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RangerTim
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Posts: 232
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Re: Folbot rudder downhaul more pics

Post by RangerTim »

Here are some closer views. A loop of line threads through the rudder mount and extends onto the aft deck. A loop of shock cord goes through the loop of line near the rudder. An adjustment line attaches by bowline to the aftmost washboard star knob on the port side. That adjustment line threads through the shock cord then makes its way along the starboard washboard. Pulling forward on that line stretches the shock cord, applying forward pressure to the rudder and holding it down. The adjustment line is secured with a turn around two successive starboard washboard starknobs.
Attachments
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806625083_375980_compress88.jpg (46.67 KiB) Viewed 1134 times
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806622518_375589_compress13.jpg (33.18 KiB) Viewed 1134 times
Last edited by RangerTim on Wed Feb 26, 2020 5:48 pm, edited 1 time in total.
Ann and me
Folbots: Too many. It's embarrassing.
Feathercraft: Aeronaut
Klepper: AEI - Jonathan Waterman's boat
Hardshells x6

RangerTim
faltbootemeister
Posts: 232
Joined: Sun Jan 11, 2015 4:10 pm

Re: Folbot rudder downhaul rudder hits ramming strip

Post by RangerTim »

A problem when I first installed the downhaul was the forward pressure driving the rudder leading edge into the stainless steel "ramming strip". I added a stainless steel washer atop the rudder post rubber washer, which gave the leading edge just a bit more clearance.
Attachments
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20200205_105229_compress96.jpg (35.74 KiB) Viewed 1134 times
Last edited by RangerTim on Wed Feb 26, 2020 5:40 pm, edited 1 time in total.
Ann and me
Folbots: Too many. It's embarrassing.
Feathercraft: Aeronaut
Klepper: AEI - Jonathan Waterman's boat
Hardshells x6

RangerTim
faltbootemeister
Posts: 232
Joined: Sun Jan 11, 2015 4:10 pm

Re: Folbot rudder downhaul

Post by RangerTim »

On a recent Everglades adventure, gear was loaded on the aft deck atop the shock cord. I was still able to pull the adjustment line to add forward pull. I could not reduce the pull directly. After releasing the adjustment line I needed to hoist the rudder a smidge to pull the shock cord aft and release tension. Then I could retension.

Without any gear on the aft deck the shock cord retracted on its own.

Even when tensioned, the shock cord allows the rudder to pop up and over submerged obstacles and to trail back should I run aground.
Ann and me
Folbots: Too many. It's embarrassing.
Feathercraft: Aeronaut
Klepper: AEI - Jonathan Waterman's boat
Hardshells x6

RangerTim
faltbootemeister
Posts: 232
Joined: Sun Jan 11, 2015 4:10 pm

Re: Folbot rudder downhaul

Post by RangerTim »

I find that by using a loop to attach to the rudder the rudder remains neutral even when the shock cord is tensioned. I can detect no pull to port or to starboard.
Ann and me
Folbots: Too many. It's embarrassing.
Feathercraft: Aeronaut
Klepper: AEI - Jonathan Waterman's boat
Hardshells x6

JohnSand
knight of the folding kayak realm
Posts: 489
Joined: Mon Jul 10, 2017 3:08 pm
Location: Long Island NY

Re: Folbot rudder downhaul

Post by JohnSand »

Seems like a good solution.

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