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Topic: Is this about normal? Water in the hull.  (Read 1023 times)

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akfishergal

  • Salmon
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  • Location: Anchorage, AK
  • Date Registered: Oct 2011
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Last night I took the new Hobie Revo to the local pool to work some capsize drills. What a fabulous boat! But here's the question.  After 12 flips, and 12 recoveries -- there was about 1/2" of water inside the hull.  Out of curiosity I opened the midships hatch before getting out of the pool and measured this amount.  It wasn't too much to impede righting the boat even as I grew tired, but I am curious about where the water is coming in and whether this amount of water entering suggested a problem. What do you think?

The other thing that surprised me was observable this morning. Pronounced bruising on my arms (interior above elbow) from regaining entry using the BBL method.  I'm an upper-body weakling, so assume I'm just not lifting myself clear of the leading gunwale or high enough to avoid contact. Any suggestions? 

Guess I need to start doing some pushups....




fishnut

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Just some thoughts but you might also get others feedback like Zee, Pelagic Paddler,etc.
Check all your seals on all hatches to make sure they are in good shape(new yak, should
be good). Was there 1/2" throughout the ENTIRE hull? That seems a bit much but a little bit would be normal. Possible stress fx. in the mirage drive area or somewhere else
maybe? Review Zee's video on self rescue again and build up the arm muscles as it seems you just might be using to much weight on the arms instead of the hands thus
incurring bruising. Also might be 12 times trying in a very short period of time that's
caused that. Hopefully Zee responds to you as he's a Hobie Pro. Best of luck and keep up the practice until you know you're good to go and re-practice periodically.


polyangler

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Your hull is not, nor should be completely air tight. There will be a small amount of leaking around your rudder lines, hatches, and most other through hull hardware. 1/2 an inch after rolling it over 12 times is a pretty water tight boat. No concerns there.

Are you prone to bruising easily? Righting and climbing back into your boat is a fairly physical task. I would think a little soreness and possibly some bruising to be expected after a doz or so drills. If you were able to do it yourself all 12 times you have plenty of upper body strength!

Good on you getting to the pool for self rescue practice!!

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Zee

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Rav is right. It depends how much time it was upside down and  some other factors but 1/2" water isn't too bad. It's always good to have a bilge pump on your yak and a bilge sponge is always nice too. As to working out to self rescue easier.. Yes and YES!! Great thinking. This is a dangerous sport and getting yourself aboard quick makes all the difference in the world.
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demonick

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Check your crotch and tank well hatch gaskets too.  They are a crappy design and have a tendency to roll in their slot.  I find I need to remove mine and clean the slot and the gaskets after each salt trip or the salt builds up in the slot.  I often use either a silicone spray or WD-40 to lube the gaskets, screw close, and hinges.

Also check your bow hatch seal and bungees.  You can tighten the stock bungees to hold the hatch down tighter.  Or, if there is enough bungee, you can cross the bungees to the other side buttons.
« Last Edit: March 16, 2012, 09:37:35 AM by demonick »


akfishergal

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Thanks for the guidance, fellas.

On my final effort Wednesday, I timed the self-recovery at 25 seconds. But on a few of those efforts, I swam underneath and around the kayak just to get a feel for my buoyancy and maneuverability. I would estimate that at most the kayak was upended for about 15 minutes. I will definitely examine the hatches and tighten the bungees on the bow hatch. Your suggestions about inspecting and cleaning after saltwater trips -- I'll absolutely remember that.  I'll make sure that a bilge pump and sponge are on board, part of the standard gear that always stays on this boat.

I can't say whether the water was 1/2" throughout the boat, or just under the heaviest part where I sat when checking the center hatch. I didn't check again when I pulled the kayak out of the pool, just proceeded to drain the boat.

Zee's video was one of several that informed my understanding of how to do this. All of my adult life has been spent in Alaska, and as much time as I can muster is spent outdoors no matter the season. I've had some close calls over that time, and understand the importance of thorough preparation and attention to safety. I recognize my limitations honestly, and concede that I don't have the strength that I did at 25. What I lack in strength, I make up for in wilderness savvy. The ocean is another aspect of wilderness travel to learn. Another way to find big fish.

This forum is a brilliant knowledge resource. I'm so happy that it's here, and that you've taken time to answer questions in such detail.  Now... back to the push-ups.



Lee

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For anyone that has physical challenges getting back into the yak, I would recommend pull ups (with palm forward) and core excercises.

Here is a good starting point for core exercises:
http://www.mayoclinic.com/health/core-strength/SM00047


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Romanian Redneck

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Your hull is not, nor should be completely air tight. There will be a small amount of leaking around your rudder lines, hatches, and most other through hull hardware. 1/2 an inch after rolling it over 12 times is a pretty water tight boat. No concerns there.


+1
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akfishergal

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Thanks Lee, I'll add pull-ups to the list. My husband installed a bar in the basement years ago -- I just don't use it because it's so embarrassing. For core strength, Pilates classes work for me. That might be too girly for some folks.


Fungunnin

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Thanks Lee, I'll add pull-ups to the list. My husband installed a bar in the basement years ago -- I just don't use it because it's so embarrassing. For core strength, Pilates classes work for me. That might be too girly for some folks.

Pilates as well as Yoga are great core work outs that pay huge dividends with balance and body awareness on the kayak. Though they don't do much for "juicing the guns" ..... To each his own. Some think that a ton of curls and bench press in front of the minor at the gym is the ticket.


Lee

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Some think that a ton of curls and bench press in front of the minor at the gym is the ticket.

pedo!


Hot yoga is one hell of a workout.  Great for endurance!
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Spot

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Nice work akfishergal!  A lot of people skip these crucial 1st steps. 
 
Most people don't think they'll ever need to perform a wet entry..... till they have to.

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demonick

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... I'll make sure that a bilge pump and sponge are on board, part of the standard gear that always stays on this boat. ...

Here's a quick, simple in-the-hull mount for a Scotty Pump.  Pulls out with one hand. 
http://www.demonick.com/kayak/Scotty.Pump.Mount/Scotty.Pump.Mount.html