• MikeMurray
  
  

  • Rank: Lubber
  • Registered: Jun 11, 2010
  • Last visit: Jan 02, 2020
  • Posts: 12

  Posted: Mar 27, 2019 - 11:48 AM

  Last week, while sailing my P18 on a lake outside of Orlando, I was hit broadside by a jet ski going at least 30 kn. The impact was along the seam where top and sides meet, about a foot from the front of the starboard bow. The guy who hit me was hurt but still got back on the jet ski minutes later and fled the scene. Craziest thing.
  
  
  
  The top of the hull has a 30" crack and the seam where the top and the side connect is separated cleanly.
  
  
  
  That separation is about 40" and is extends further aft from where the crack is. I just cut out the damaged area on the top to assess interior damage and begin the repair process.
  
  
  
  The inside revealed delamination damaged (caused by the impact) that extends laterally from the crack - the widest are being about 5". Here are some pictures of the delaminated material that's been cut.
  
  
  
  
  
  I successfully repaired (fiberglass and gelcoat) side hull damage (major holes) a few years ago and feel confident about repairing the hole i've cut out but I am not sure about how to ensure a good repair on the separation between the side and top of hull. I assume use a lot of resin and inject from inside and outside then clamp and strap down. Will that work?
  
  Also - how can i achieve the grid texture on the top of the hull?
  
  Thanks in advance for advice. Will document process and share.
  
  Mike

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• badfish
  
  

  • Rank: Mate
  • Registered: Jan 17, 2019
  • Last visit: Jan 13, 2020
  • Posts: 216

  Posted: Mar 27, 2019 - 12:21 PM

  Sheesh. Glad to hear you didn’t sustain any injuries. Hopefully you managed to get the registration numbers. The consolation prize is knowing that the numbskull that hit a big 18' long, 30' tall sailboat was, at a minimum, sore the next few days.
  
  
  
  Edited by badfish on Mar 27, 2019 - 05:05 PM.
  
  --
  Joshua
  
  Texas Gulf Coast
  '82 Prindle 16 (Badfish)
  '02 Hobie Wave (Unnamed Project)
  ‘87 Hobie 18 (Sold)
  ‘89 Hobie 17 (ill-advised project boat, Sold)
  --

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• martyr
  
  

  • Rank: Mate
  • Registered: Jul 01, 2016
  • Last visit: Aug 30, 2023
  • Posts: 631

  Posted: Mar 27, 2019 - 04:58 PM

  This is why I hate Jet Skis. I see mostly kids riding flat out on these things, going like a bat out of hell because, yeah, it's fun to go fast. What scares me is that people just don't seem to pay attention to where they are going and it amazes me that someone riding one of those blasted water hazards would not pay attention, so much so, that they would hit a sail boat that has a big sail like a big flag waving in the wind, I mean really, how do you not see a sail out on the open water with nothing there to block your view???? Glad that you were not injured and I hope that you at least got a chance to shout a few expletives at the idiot.
  
  --
  Marty
  1984 Hobie 16 Redline Yellow Nationals, "Yellow Fever"
  Opelika, Al / Lake Martin
  --

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• flyhull
  
  

  • Rank: Lubber
  • Registered: Jun 13, 2012
  • Last visit: Nov 23, 2022
  • Posts: 29

  Posted: Mar 28, 2019 - 12:02 AM

  I know that i should not joke about this after the damage is done but there is a preventative measure that could have been taken https://www.thebeachcats.…ltimatePWCRepellent.html
  
  
  
  Edited by flyhull on Mar 28, 2019 - 12:03 AM.

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• windwardde
  
  

  • Rank: Mate
  • Registered: Oct 20, 2011
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  • Posts: 167

  Posted: Mar 28, 2019 - 05:43 AM

  Quote

  how to ensure a good repair on the separation between the side and top of hull. I assume use a lot of resin and inject from inside and outside then clamp and strap down. Will that work?
  
  Also - how can i achieve the grid texture on the top of the hull?

  
  
  I would definitely load it up with a thickened resin and then press together and clamp.
  The grid texture is a hard one. You can use an additive to lay down a textured surface, but it won’t be in a pattern. I would use hydroturf, cut to size and glued over the area. Aside from that, I would think you would need to create a pattern of the grid and lay it on a wet resin surface, allow to harden and insure it could release. Sounds very difficult to me.
  
  --
  Supercat 15
  Windrider 17
  Several Sunfish and Sunfish clones
  Ratboat built from Zuma and Sunfish parts
  Shallow water sailor in the Delaware Bay
  --

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• MN3
  
  

  • Rank: Master Chief
  • Registered: Jun 20, 2006
  • Last visit: Dec 04, 2024
  • Posts: 7090

  Posted: Mar 28, 2019 - 10:36 AM

  glad you are ok
  
  sounds like a very poor mariner on the pwc - many are
  
  Often It's like giving a novice the keys to a Kawasaki ninja with zero training -
  
  We have loads of poor mariners on pwc around here as well - even with guides they are in the motor exclusion zones or riding up on fishermen in the flats
  
  that being said "don't hate them all"
  I know a few that are sailors, mariners and responsible (a few)
  
  I have been towed in after demasting and had pwc get off their pwc to get in the water with me and help me right my boat - so there are some good ones too.
  
  don't go shooting your ground to pwc missiles until you are sure they deserve it

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• Dogboy
  
  

  • Rank: Mate
  • Registered: Mar 19, 2004
  • Last visit: Nov 21, 2024
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  Posted: Mar 28, 2019 - 08:06 PM

  For some reason, I can’t view the pictures, so can’t really comment on the structural repair other then if the seam has separated then using thickened epoxy and clamps is generally the way to put it back together. Try to scuff and clean the mating surfaces as much as possible to get a good bond.
  
  For non-skid repair, check out Flexmold by MAS Epoxies. They have a large selection of popular non-skid patterns and will send you a small sample to check against the pattern on your boat (I know they have the Hobie pattern, not sure about Prindle). The product is fairly easy to use and gives reasonable results (I’m sure you could get near perfect results if you used the stuff every day). It is a but pricey though.
  
  sm

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• MikeMurray
  
  

  • Rank: Lubber
  • Registered: Jun 11, 2010
  • Last visit: Jan 02, 2020
  • Posts: 12

  Posted: Mar 29, 2019 - 03:49 AM

  Thanks for those suggestions. The Flexmold looks like it should work. i found this which has some application videos at the bottom: https://gibcoflexmold.com/help/ like that there isn't any gelcoat sanding or polishing required.
  
  Mike
  Lake Conway
  Orlando

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