Grounding - what to look for after

Oct 26, 2010
2,214
Hunter 40.5 Beaufort, SC
Grounded the boat on an unmarked shoal that appeared after Hurricane Matthew last weekend on the Beaufort River near Parris Island MCRD.
I was hard aground on a falling tide and by the time Towboat US got there it was too late to try getting her off so just had to wait until the tide came back in and re-floated us (we had a 9 foot tide that day). I was hard aground on a sand shoal but the grounding itself felt more like "sliding into second and coming up a foot short."

I have a 4'10 wing keel and my rudder is just a little shorter than the keel (not much). The picture shows the boat careened over at the lowest tide (about 18 inches on the port side), about 30 inches deep on the starboard side (must have been on the slope of the shoal). It looks like I rotated parallel with the shoal after the grounding. There were only small waves (less than 1 foot) as the tide came in and not a lot of "pounding" as we sat there waiting for the boat to come upright. It didn't even scuff the brand new Awlgrip paint on the port side. I was expecting it to look like someone took sandpaper to the paint but you can't tell it even was laying on the "sandpaper."

After we floated free we motored back to the mooring (with my tail between my legs) and tied up. When motoring back everything seemed to be normal with no effects noted. The rudder moved freely from lock to lock, did not flutter or seem to be loose, and held straight and true on course. There was no water coming into the bilge. I inspected the fiberglass rudder post (fiberglass "tube" that extends from the hull up to the top of the rudder inside the boat) and there are no cracks on evidence of damage from viewing on the inside. The Maxprop worked perfectly and I was able to get to the normal speeds for the rpm that I normally see and there was no vibration in the shaft while motoring. I have a PSS drip-less shaft seal and it is not leaking.

I'm having a diver check it out as soon as he can get there. I'll have him look for any cracks or signs of damage at the keel to hull joint and where the rudder post goes into the hull and general condition of the rudder. Anything else I should have him look for? I don't see a need to have it hauled unless the diver sees something untoward.
IMG-2066.JPG
 
Jan 11, 2014
13,999
Sabre 362 113 Fair Haven, NY
Sorry to hear about your misfortune.

Look for damage at the aft end of the keel. In a hard grounding the keel is driven up and back into the hull. This can cause the hull to delaminate. It can also damage structures inside the boat. Check the bulk head tabbing and and any floor supports. When the hull flexes upwards, these area can be damaged.

Here are a couple of photos of a boat that went hard aground. It was a Sabre 34, you can see the damage at the aft end of the keel and the floor timber is cracked. The hull was delaminated aft of the keel. The boat went aground on rocks so the impact was much greater than going around on sand or mud.

It may be worth your while to get a short haul to check the bottom for damage.

. DSC_0019.JPG.jpgDSC_0009.JPG.jpg
 
Sep 25, 2008
7,687
Alden 50 Sarasota, Florida
Looks pretty close to shore.

I lost count of the number of times we have grounded insane here, in the Bahamas and in New England over the years. Never caused any damage. If you and the diver find nothing bent or broken, it "never happened"
 

PGIJon

.
Mar 3, 2012
856
Hunter 34 Punta Gorda
Sorry for your grounding... Just wish those forward looking sonars were reasonably priced! I'd buy 1... -Jon
 

Rick D

.
Jun 14, 2008
7,203
Hunter Legend 40.5 Shoreline Marina Long Beach CA
Well, at least that's two of us! Only I did it twice. Got off both times though. She's probably fine. Sounds like a gentle grounding as they go. Good photo ;-)
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,522
CAL 35 Cruiser #21 moored EVERETT WA
Jon, The forward may not preform like you want or need. Check them out. Friend on a CAL31 had his removed. Slowed his boat and never worked as promised.

It is said there are boat owners that have run aground, then there are the rest just waiting their turn.

Keep current charts, check your route, know your position, tides, and keep Neptune satisfied with a wee bit of your wine every now and then... You may just avoid grounding for most of your sailing experience.
 
Jan 1, 2006
7,982
Slickcraft 26 Sailfish
You should check the tabbing in areas remote from the keel too. The laying over can stress the bulkheads and other structures. Keel can sometimes be pushed up in a hard grounding and damage can occur at the front of the keel. The great likely-hood is that it's all fine. But if there's damage you'll want to find it now and make your claim. You don't want to find it during a resale survey.
 
Nov 6, 2006
10,209
Hunter 34 Mandeville Louisiana
Yeah.. grounding on sand/mud is usually not a problem since the stuff has a lot of "give" compared to rocks ! Sounds like she'll be OK.. Diver should be able to see anything that needs worrying about ..
JSsailem.. just like the adage about morotcycle riders.. There are those who have fallen and those who have not yet fallen.. but will.
 
May 12, 2004
1,505
Hunter Cherubini 30 New Port Richey
Here on Florida's west coast there are only three types of sailors: Those who are aground, those who are getting ready to go aground, and those who never leave the dock. Luckily its all mud and sand. If the wave action didn't pound you much you are most likely good to go. Doesn't mean don't get it checked. Especially that wing keel. Good luck.
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,522
CAL 35 Cruiser #21 moored EVERETT WA
Recently read the book "Tranquility: A Memoir of an American Sailor" and he was forever finding the sand bars.
 

jviss

.
Feb 5, 2004
7,090
Tartan 3800 20 Westport, MA
More...
"Soft Grounding
Soft groundings may be described as any grounding that you can free your own boat, even if it takes a great deal of time, or wind, wave, or tide action to help you free the boat. Most soft groundings do not involve major damage, or result in leaks."
http://www.boatus.org/study-guide/prep/aground/
 
Sep 30, 2013
3,683
1988 Catalina 22 North Florida
Here on Florida's west coast there are only three types of sailors: Those who are aground, those who are getting ready to go aground, and those who never leave the dock. Luckily its all mud and sand.
You got that right. We had a close call at Cape San Blas just last month. Saw it coming and got the swing keel cranked up ... felt the kickup rudder drag in what was charted as 14 feet. And it was high tide.

Fingers crossed for you, @smokey73!!
 
Jun 6, 2006
6,990
currently boatless wishing Harrington Harbor North, MD
Had the opportunity to be in the same sailing club as Mr. Schellenburger, author of "a gunkholers guide to the Chesapeake Bay" The first thing he asks new members is "how often do you run aground" I replied just about every time we go out. He indicated that running aground in the bay is pretty much a requirement for gunkholing and welcome aboard. Apparently about 90% of new members say they never run aground.....aka don't get away from the dock much and he was not very interested in talking to them.
FWIW the 40.5 is a sturdy ship and a good "hard" soft grounding is no big deal.
 
  • Like
Likes: Gene Neill

Kermit

.
Jul 31, 2010
5,722
AquaCat 12.5 17342 Wateree Lake, SC
If you have BoatUS insurance call them immediately. They will send a surveyor at no cost to you. I plan to create a post about my experience with BoatUS in the somewhat-near future. Spoiler alert: it was a good one.
 
  • Like
Likes: JamesG161
May 12, 2004
1,505
Hunter Cherubini 30 New Port Richey
If you have BoatUS insurance call them immediately. They will send a surveyor at no cost to you. I plan to create a post about my experience with BoatUS in the somewhat-near future. Spoiler alert: it was a good one.
Wouldn't be without Towboat U.S.
 
Jun 8, 2004
10,536
-na -NA Anywhere USA
@Kermit
Make sure you advise and what was encountered. The marine surveyor that came knew his stuff.
@smokey73
I was a dealer for Hunter in the Carolinas now retired(American Marine & Sail Supply) The hull is stout and do not feel there is an issue. However, I am not sure if you have the lead wing keel or cast iron keel depending on the year built. If it is lead, it weighs more but a softer metal. I am concerned about the wings possibly bending or the keel bolts. I would report this to your insurance carrier and suggest that you have the boat hauled. If it is lead, you can not bend the wings back in place if damaged severely. The keels came from Mars Metals in Canada.
Once I knew of a large boat and started seeing tabbing separated along with equipment falling. Asked the owner if the boat had grounded and the answer was no. I refused to go back to the boat after so many false pretenses re: warranty until the boat was hauled. It was a mess underneath having run into coral, concrete with rebarb and the rudder was a mess. At that point, I sent a letter as the warranty was no longer being honored by me.
My suggestion if it is a lead wing keel, then you may want to consider a haulout
 
Oct 26, 2010
2,214
Hunter 40.5 Beaufort, SC
@Kermit
Make sure you advise and what was encountered. The marine surveyor that came knew his stuff.
@smokey73
I was a dealer for Hunter in the Carolinas now retired(American Marine & Sail Supply) The hull is stout and do not feel there is an issue. However, I am not sure if you have the lead wing keel or cast iron keel depending on the year built. If it is lead, it weighs more but a softer metal. I am concerned about the wings possibly bending or the keel bolts. I would report this to your insurance carrier and suggest that you have the boat hauled. If it is lead, you can not bend the wings back in place if damaged severely. The keels came from Mars Metals in Canada.
Once I knew of a large boat and started seeing tabbing separated along with equipment falling. Asked the owner if the boat had grounded and the answer was no. I refused to go back to the boat after so many false pretenses re: warranty until the boat was hauled. It was a mess underneath having run into coral, concrete with rebarb and the rudder was a mess. At that point, I sent a letter as the warranty was no longer being honored by me.
My suggestion if it is a lead wing keel, then you may want to consider a haulout
Crazy Dave, Thanks for the insight. My boat is a 1994 Hunter 40.5 Hull number HUN40570F394 The bottom was "soft sand" meaning mostly sand with a little silt mixed in. Not mud but not like firm sand on a beach. If you picked it up with our hand it did not bind together but kind of filtered through our fingers. The picture was taken from someone who got out of the boat and went wading up the shoal. Where the keel was sitting was in slightly deeper water than where the port toe rail is shown in the picture (somewhat sloping from port to starboard on the picture). Hopefully that mitigated the stress on the keel some. I know the rudder was free to rotate the entire time except for a very short time when the boat was nearly upright and that makes me think the slope was enough to relieve some of the bending moment on the keel. I'm having a diver this week and based on his look will see if I can get a short haul done later this week. Thanks for the tips.
 
Jun 8, 2004
10,536
-na -NA Anywhere USA
I use to live in North Cackalacky and I see you are in South Cackalacky. Now I live on top of a mountain in Virginny.