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Luhrs 29'

Old 09-21-2008, 07:43 AM
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Default Luhrs 29'

I have a Luhrs 29 and while checking for leaks discovered 150 kg of lead on each side of the boat close to the stern. The boat does sit heavy in the water at rest. The lead is just lead sheets and is not even tied down. Does ayone know why this is and whether I can remove it without compromising the safety of the boat. I have a tuna tower and wandered whether Luhrs put the lead as a stopgap mesure to fix a stability problem.

Please help as I need to make a decision on the lead before I put the boat back in the water.
Old 09-21-2008, 07:54 AM
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Default Re: Luhrs 29'

Kazza,

I had one of those boats, they are very top heavy at drift, I never noticed the lead sheets you are reffering to in my boat. Have you contacted Luhrs?
Old 09-21-2008, 08:11 AM
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Default Re: Luhrs 29'

I am going to on Monday but thought I would get user information as Luhrs may not want to admit a design flaw. the lead sheets seemed more like an afterthought rather than original design.
Old 09-21-2008, 09:00 AM
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Default Re: Luhrs 29'

The lead was likely added by a dealer/owner after the boat left the factory. I have seen added ballast in many boats and often it helped the boat balance better after changes to tankage or repowers and a tower qualifies as such a change. If they are adding ballast like that from the factory then the designers/builders did something wrong. I have not owned a 29 myself. A friend did a number of years ago and there was no added ballast but no tower on it either.

You say the boat sits heavy. Is that with full/light fuel and water load? Do you carry a big bait tank on deck? I would suggest you load the boat as you use it most and if you think it sits heavy then try pulling some lead out and run it. Better to do it in the water and judge the effects than try to guess with it on the hard. IIRC those boats carry the fuel midship on the outside. One of the best ways to help stability is to get your batteries centered between the stringers as low as possible if you can. Everything including the lead ballast should be securely fastened down. More than once I have seen lead ballast shift when the weather turns snotty when not secured.
Old 09-21-2008, 09:01 AM
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Default Re: Luhrs 29'

Luhrs checks how every boat sits in the water and makes adjustments to get the correct profile. Some other companies I have seen do this usually the lead is glassed in
Old 09-21-2008, 11:54 AM
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Default Re: Luhrs 29'

Seeing as how you have equal amounts of ballast on both sides, the lead isn't there to correct a list. It is there to put weight low in the hull to counteract a top-heavy condition. It should have been glassed in. Regardless of who added it, it should be easy to glass in place.

I would be hesitant to remove it to alleviate the stern-heavy condition. Should you remove it, and the boat is presented with good rollers beam to, it might present a hazardous condition. A talk with Luhrs is a must before you do anything.
Old 09-21-2008, 02:55 PM
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Default Re: Luhrs 29'

I thank you for that. My brother told me this was a useful forum and he was certainly right. I will speak to Luhrs and update in case anyone may be interested.
Old 09-21-2008, 03:00 PM
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Default RE: Luhrs 29'

My Whaler came with 200 lbs of lead affixed to the inner hull due to the fact it was ordered with a single motor. With twins it would be of sufficient weight to sit level
Old 09-21-2008, 03:03 PM
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Default Re: Luhrs 29'

Luhrs builds a nice boat, but the company is a little weird. I know several people, including my boss, who have worked for them over the years. I'm sure they will assist, but on the same token, they may say there is nothing wrong with a 29 Open with a tower. Report back with your findings.

http://www.luhrs.com/index/ContactUs.html
Old 09-21-2008, 05:17 PM
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Default Re: Luhrs 29'

How long have you had the boat? It certainly did not get there by accident, and as it is equal on both sides, it seems that it is there to lower the center of gravity, and most likely to offset the tower. A tower can really change the characteristics of a hull and the effect if more profound the smaller the boat. 29 is about the smallest boat that can take a full fledged tower, so to me it all makes sense.

Should it have been glassed in? Yes. Does it need to be? I doubt it, go back to my original questions, how long have you owned the boat? If it has been a while and the lead is not moving around, which it sounds like it isn't, then you can probably just leave it alone.

I would not even bother calling Luhrs. They have not been getting the best press and or sentiment lately and they will probably be skeptical to your intentions when you call and therefore you will not get a straight answer (probably not anyway) and that is if you actually end up speaking to someone who really knows the answer to the question, or just some Moe telling you anything to satisfy your inquiry.
Old 09-21-2008, 07:10 PM
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Default Re: Luhrs 29'

At least call, and get the concern on record. And you never know, unlike those Mako owners, you will probably get a straight answer.

They are a pissed off bunch, you know. Bush, and his buddies...
Old 09-21-2008, 07:35 PM
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Default Re: Luhrs 29'

seabob4 - 9/21/2008 9:10 PM

At least call, and get the concern on record. And you never know, unlike those Mako owners, you will probably get a straight answer.

They are a pissed off bunch, you know. Bush, and his buddies...
WTF does that mean?
Old 09-22-2008, 03:05 AM
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Default Re: Luhrs 29'

makosteve66 - 9/21/2008 4:17 PM

How long have you had the boat? It certainly did not get there by accident, and as it is equal on both sides, it seems that it is there to lower the center of gravity, and most likely to offset the tower. A tower can really change the characteristics of a hull and the effect if more profound the smaller the boat. 29 is about the smallest boat that can take a full fledged tower, so to me it all makes sense.

Should it have been glassed in? Yes. Does it need to be? I doubt it, go back to my original questions, how long have you owned the boat? If it has been a while and the lead is not moving around, which it sounds like it isn't, then you can probably just leave it alone.

I would not even bother calling Luhrs. They have not been getting the best press and or sentiment lately and they will probably be skeptical to your intentions when you call and therefore you will not get a straight answer (probably not anyway) and that is if you actually end up speaking to someone who really knows the answer to the question, or just some Moe telling you anything to satisfy your inquiry.
I just got the boat and bought it from someone that did not use the boat much (it had 300 hours and it was a 2000). His captain went spearfishing alone and the anchor came loose and the boat ended up on the reef. The captain climbed aboard put it in gear and went full throttle (seemingly). You can imagine the rest (bent shafts, struts and a busted gearbox). The boat sat out of the water for a year then I bought and fixed it. I have since then added about 150 hours but had a slight leak so decided to take the boat out of the water now rather than wait untill the next antifouling, so I have an idea about the boats performance. Curiously I have to really fight with the trim tabs as the boat tilts at full throttle. Sometimes to the left and sometimes to the right, a little unerving sometimes.

I had a 5 kv Kholler(spelling) generator which I have now removed as it seemed the boat sat too deep at the stern. The engines smoke too much between 2000 and 2700 rpm and the mechanic assures me that it was due to the load on the engines as the boat struggles to plane. I removed all freshwater before I took the boat out of the water to check if it made a difference in performance and the engines smoked much less. If it were possible I would rather have the generator than all that lead.
Old 09-22-2008, 11:52 AM
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Default Re: Luhrs 29'

I almost made the mistake of buying a 1988 29' Luhrs about 10 years ago.............I had a survey done by a gentleman that surveyed several others at that time. He told me that the boats sat somewhat "bow heavy" and that running in anything less than 3/4 fuel would get "bow steer" He suggested adding a few hundred pounds of led to the rear of the boat to offset..............(sound familiar?) Anyway, I never wound up buying the boat due to several other factors...............There is your answer.......Wether or not Luhrs will admit to a design flaw is not the issue.......
Old 09-22-2008, 12:01 PM
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Default Re: Luhrs 29'

That was a common problem with the 29s and still a problem with the 28s. Trying to correct with the trim tabs is almost pointless. That is a very tender hull at speed. There are multiple stories throughout the internet of the same stability issues.
Old 09-22-2008, 12:12 PM
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Default Re: Luhrs 29'

Wow the Luhrs hits keep on coming..... boatmanalso should be showing up shortly "every boat bow steers, adding lead is very common on top brands!"
Old 09-22-2008, 05:06 PM
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Default Re: Luhrs 29'

UPDATE:

Well I called Luhrs and he assured me that there was no need for all that lead. he told me the Marlin tower was part of the design so it did not need to be offset with weight. He also said it was designed with the 5 kv Kohler generator. You would have thought that by 2000 they would have corrected any flaws since it was first sold in '88. He also said the built about 500 of that model.

I guess I will take the lead out then see how it behaves. The 300 kg I found is probably 200kg too much (200lb sounds about right).
Old 09-22-2008, 06:03 PM
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marlinmike - 9/22/2008 11:12 AM

Wow the Luhrs hits keep on coming..... boatmanalso should be showing up shortly "every boat bow steers, adding lead is very common on top brands!"

Just curious as to which other "top brands" require hundreds of pounds of led ballast to avoid water running into the cabin while the boat is at rest?
Old 09-22-2008, 06:20 PM
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Default Re: Luhrs 29'

Makosteve,
Didn't you repeat about exactly what I said? Like the guy needs to hear it twice? CM is for right wing nutballs. I ain't one of them. And seeing the state of the economy in this country, well, need I say more.
Old 09-23-2008, 10:17 AM
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offshorebri it was a joke, I was referencing what one poster might say.

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