Re: Repowered Hats leaning
That's interesting, check out this now comical Hatteras Promotional video. At 5-6 seconds in look how the divers bubbles are trapped by a seemingly concave area in the hull. That can't be good can it? I remember reading the letters section in a boat magazine years ago, some guy had listed all the things he had done to his flat-bottom V-drive to get more speed, disappointed he wrote looking for suggestions. They said his boat likely sits on a trailer when not in use and that his boat was prone to "trailer sag" sometimes seen in hot climates. They explained how to use a six foot straight-edge to see if his flat bottom had become slightly concave. https://m.youtube.com/watch?v=3JO4kyUsnRM
Re: Repowered Hats leaning
It's been out there for a long time that it's a suction issue that leans the boats over to 1 side above certain speed. Have scene different fixes such a blocks and various strake shapes as a remedy. A rope under the bottom aft cleat to aft cleat will push a boat over the hump that won't plane too. Just curious, I don't remember any 1986 Hatts having having strakes??? Would love to see a photo of what they did.
Re: Repowered Hats leaning
I am going to repower a 1980 50C I think a series two.
I'm looking at about 850hp and this will push the boat over 30kts.
Sounds as if the boat would not be stable at that speed, the HP increase
wouldn't make much sense.That being said if a simple fix such as adding
strakes to the hull would solve the problem...sure would like the extra performance.
Sure could use some more information as to how long, how many,
and where the strakes were installed.
Thanks
Mark Morrow
Re: Repowered Hats leaning
Quote:
Originally Posted by
Mmorrow
I am going to repower a 1980 50C I think a series two.
I'm looking at about 850hp and this will push the boat over 30kts.
Sounds as if the boat would not be stable at that speed, the HP increase
wouldn't make much sense.That being said if a simple fix such as adding
strakes to the hull would solve the problem...sure would like the extra performance.
Sure could use some more information as to how long, how many,
and where the strakes were installed.
Thanks
Mark Morrow
The 50C II shouldn't have an issue with keep walking
Re: Repowered Hats leaning
Quote:
Originally Posted by
Cricket
It's been out there for a long time that it's a suction issue that leans the boats over to 1 side above certain speed. Have scene different fixes such a blocks and various strake shapes as a remedy. A rope under the bottom aft cleat to aft cleat will push a boat over the hump that won't plane too. Just curious, I don't remember any 1986 Hatts having having strakes??? Would love to see a photo of what they did.
NOT THE AFT CLEAT... The rope was placed from the bow the the next set of cleats back. The 36 had bow cleats two both right and left and another set just aft of them both right and left ( where the rope was placed) not the stern. It was a 1.5 inch rope pulled tight. With the rope it did not lean take the rope off and it leaned. I can not explain where the sticks were placed but we were given a diagram of where to put them. With the boat sitting they will not show under the h2o line.
the sticks were not a factory installed item. They are not necessary with slow speeds.
Sorry Cricket if i did not explain myself. FYI there have been a bunch of 45c that have had the problem of leaning. If you look at Goodgrief http://www.yachtworld.com/boats/1982...s#.Wa2VcZ3R82w
It is a 46 but it was a hp the hull and keel was altered on all hp.
Re: Repowered Hats leaning
Quote:
Originally Posted by
saltshaker
The 50C II shouldn't have an issue with keep walking
It should not Jack but i watched this one be fixed right before my eyes in the mariner i am in. It was fixed the same way i have discribed
http://www.yachtworld.com/boats/1991...es#.Wa2YbZ3R82 ...
Re: Repowered Hats leaning
Quote:
Originally Posted by
Mmorrow
I am going to repower a 1980 50C I think a series two.
I'm looking at about 850hp and this will push the boat over 30kts.
Sounds as if the boat would not be stable at that speed, the HP increase
wouldn't make much sense.That being said if a simple fix such as adding
strakes to the hull would solve the problem...sure would like the extra performance.
Sure could use some more information as to how long, how many,
and where the strakes were installed.
Thanks
Mark Morrow
I can only tell you what i have seen and heard. If you have a problem let me know and i will be glad to tell the retired engineer from Hatteras to call.
Or you can call C.D. Piner at Hatteras service tell him your problem he will guide you. He will not help you as Hatteras sees it as a Libelity. They will not tell you where to put the rakes.
Tell CD you need TOBACCOW STICK HELP. To answer your question the rakes are 6 foot long 1.5 x1.5 inches..
DO NOT use starboard use pultruded fiberglas striped. CD WILL HELP YOU WITH THAT.
WHat you repowering with..???
Tim
fYI HERE ON THIS WEB SITE There is a thread about a knock out 45 with full tower in florida. Seems it was yellow and a looker. The owner was selling it because of the problem we are discussing.
I understood he saved the keel from advice from a mariner. Also put larger trim tabs on. Nothing helped he was fed up. Some of the other guys may remember this and locate the threat. I do not remember the engines used but it would move along till it fell over.
Re: Repowered Hats leaning
Tim,
Thanks for the info.
I'll get in touch with your man at Hatteras about as we northern floridians call
baca sticks. I learned what work was all about as a kid with those things.
Caterpillar 12.9 engines are under consideration
What are your thoughts.
"Hattenuff" Beautiful boat and 32 KNTs
Thanks Again
Mark
Re: Repowered Hats leaning
Is this a "fix" that would benifit shorter hatts? my 34 is gas and is about a 20knt cruise , 24knt WOT...
Re: Repowered Hats leaning
Quote:
Originally Posted by
hunshatt
Is this a "fix" that would benifit shorter hatts? my 34 is gas and is about a 20knt cruise , 24knt WOT...
If the boat is not making uncontrollable hard turns at high speeds you do not have to worry. Your boat was made to run about that fast but if you push it somewhere in the 28 knot range watch out.
I am by far no expert but i have heard the magic number is 26 knots. Of course diffrent speeds for diffrent boats.
Re: Repowered Hats leaning
Quote:
Originally Posted by
hunshatt
Is this a "fix" that would benifit shorter hatts? my 34 is gas and is about a 20knt cruise , 24knt WOT...
What Tim said. If you're experiencing problems at those speeds something else is wrong.
Re: Repowered Hats leaning
Mmorrow, after going through the re-power process a few times I would install the engines and then add any modifications after the boat is run at the new speeds.
It might not need anything.
There will be a lot more pressure on the steering gear so make sure all of the components are in perfect shape, including the rudder shelf.
Don't think there's a lot of CAT 12.9's out there but the feedback so far has been very good that I have heard.
If I loose my mind, again, and do another re-power it will probably be C18's. My worry is Cat's long term commitment in staying with reselling the Iveco engines, like the 12.9 etc, and then parts availability...
Cat was making good deals on 12.9 last year around this time, anyone know if that's still going on?
Re: Repowered Hats leaning
Quote:
Originally Posted by
Avenger
What Tim said. If you're experiencing problems at those speeds something else is wrong.
THE BOAT IN QUESTION also had another issue. During construction there were issues. The boat had some small v's installed just in front of the tabs.(which were ground out) The boat as i understand was one of the first to have the 12 DD installed.It did not want to plane. I do not know the complete story but they were removed during or after the re power.
Re: Repowered Hats leaning
Quote:
Originally Posted by
Tim Powell
NOT THE AFT CLEAT... The rope was placed from the bow the the next set of cleats back. The 36 had bow cleats two both right and left and another set just aft of them both right and left ( where the rope was placed) not the stern. It was a 1.5 inch rope pulled tight. With the rope it did not lean take the rope off and it leaned. I can not explain where the sticks were placed but we were given a diagram of where to put them. With the boat sitting they will not show under the h2o line.
the sticks were not a factory installed item. They are not necessary with slow speeds.
Sorry Cricket if i did not explain myself. FYI there have been a bunch of 45c that have had the problem of leaning. If you look at Goodgrief
http://www.yachtworld.com/boats/1982...s#.Wa2VcZ3R82w
It is a 46 but it was a hp the hull and keel was altered on all hp.
Very familiar with Good Grief as we've spent the last few winters hauled out in the same yard, can't be a better redo on a Hatteras.
I've watched several different boats tested with a rope under the transom to see if it would help them plane easier, wasn't referring to a Hatteras in particular. If I remember correctly the boats had a hook in the bottom near the transom that made them run like crap, on 1 of them they ground it out, took 2 guys 2 weeks, and their issue was resolved.
Re: Repowered Hats leaning
Quote:
Originally Posted by
Cricket
Mmorrow, after going through the re-power process a few times I would install the engines and then add any modifications after the boat is run at the new speeds.
It might not need anything.
There will be a lot more pressure on the steering gear so make sure all of the components are in perfect shape, including the rudder shelf.
Don't think there's a lot of CAT 12.9's out there but the feedback so far has been very good that I have heard.
If I loose my mind, again, and do another re-power it will probably be C18's. My worry is Cat's long term commitment in staying with reselling the Iveco engines, like the 12.9 etc, and then parts availability...
Cat was making good deals on 12.9 last year around this time, anyone know if that's still going on?
You are correct Cricket the deals were flying especially from Gregory Pool they purchased from cat a bunch of them and were passing along the savings. I talked to Steve at cat in Wanchese NC. The deals were good but by the time you added all the goodies
wiring harness / troling valve/ on and on. The price got over my expectations. I do not remember the $ amount but it was approaching or passing 200,000 each. They said it was a deal. Deal or not to high for me. I had to move on to the QSM11's.
As to the answer to your question deal going on i was lead to believe it would be over in a few weeks or so. Last year. I missed a pair that were being taken out because they did not push the 63 the suspected speed. They decided to keep them.
Re: Repowered Hats leaning
Quote:
Originally Posted by
Tim Powell
If the boat is not making uncontrollable hard turns at high speeds you do not have to worry. Your boat was made to run about that fast but if you push it somewhere in the 28 knot range watch out.
I am by far no expert but i have heard the magic number is 26 knots. Of course diffrent speeds for diffrent boats.
it isn't acting up at all, but I thought there was mention of getting on plane easier... at some point I expect to throw a set of diesels in figured if it was helpfull I'd do it this winter during the haul
Re: Repowered Hats leaning
My series one 36 with 330b's hit 30kts with no issues at all, my buddy's series one 45 with M11's scared the hell out of me on the sea trails doing as described. She'll cruise 28kts no problem but on the pins watch out. I passed along this info to him. Thx
Re: Repowered Hats leaning
Hey guys I have 36 series 2 re powered with Cummings 450's. my boat acts up over 25 knots but that's not a problem as my cruise is about 20. My problem is when in large steep following seas at anything over trolling speed the boat will keel walk going down the face of the wave very scary . I have considered removing the keel it . Do you think the modifications would correct this?
Re: Repowered Hats leaning
Of course this may be a mute point as I may get hit by a cat 5 this weekend and lose my boat
Re: Repowered Hats leaning
Quote:
Originally Posted by
brian4190
Of course this may be a mute point as I may get hit by a cat 5 this weekend and lose my boat
Sorry i do not have a answer for you on that one except to say. I thought keel walking was at high speeds issue not a trolling thing.As i understand keel walking the boat gets up on the keel and runs on a 4 inch wide keel. The whole thing sounds a little inpossible to me. But what do i know. Cricket can probley explain it to you.
I am not sure but what you are describing may be known as surfing as i know only one cure . About 5 foot more boat that will reach out and get the next one coming. Does the boat list. Is the bow full of crap.
I would never cut the keel. However if you notice the 46 HP their keel is all but gone. But that was done to keep up with or out run the Bertrams during the hat Burt shoot out. I will bet some of the Hat factory boys that ran the things can tell some stories about the 46 HP. In its day it was tuff and fast and a fisher.
Re: Repowered Hats leaning
Brian, if it's that bad at such low speeds it sounds more like a trim problem. Are you using tabs, have an all chain anchor rode or something else that's weighing the bow down??
Re: Repowered Hats leaning
I always run down wave with the tabs up but I did add another set of tabs over the tunnels. The boat keel walks when at a pretty good speed as I am surfing down the face of the wave. This only happens when the seas are over 6 ft or so. If I go slow it is not an issue. These series 2 hulls designed by Jim wynne only were produced for about 5 or 6 years and may have this design flaw.
Re: Repowered Hats leaning
Bryian
I have only had experience with one 36 which is not mine and a 34 that was mine so slow the walress could keep up with it. I have had a 34 a 41 and a 45 and now a 52. I have learned a lot along the way.
Anything i may tell you would be guessing except for what i have lurned around where i keep my boat. I keep it at a small working mariner.
