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Old 13 February 2011, 08:13   #11
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Pants, I'll need to go out and check mine now.
The spilt appears to be worse at the engine side of the knee and tapers out directly above the knee where the transom is at it's most rigid. That would suggest a problem beneath where the engine sits. I assume a 90hp Suzuki is well under the max transom weight for the Destroyer (170kg from memory). The fact that the fault is on the same side as your lightpole seems convenient for them to point the finger.
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Old 13 February 2011, 08:28   #12
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I don't suppose you could have water ingress and with the recent temperatures the chance of expansion reopening the repair?
Bruce, that is really disappointing to say the least. Something is causing the problem and I wonder if Chris has hit on it. Could it be, even, that the wood was damp when the boat was built?

I've just looked at my transom and there's no sign of any cracking at all after ten years with, until recently, an engine within a kilo of the maximum weight and being owned and driven by a teenager for half that time.

Until now I'd always thought of Humbers as bullet proof.

Quinquari might help - Tony Hill will know. Ardfern Yacht centre have a really good reputation for fibreglass repairs and may be able to give an independent assessment.

Hope you can get it sorted.

Tony
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Old 13 February 2011, 10:01   #13
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My old clubs 5.8 m Destroyer is still going strong after 14 years and it has had a 150hp 2 st and a 130hp 4 st in that time without issue.
The crack is definitely coming from under the motor and the 90hp is well within the limit for weight and power.
I lost a good bit of the summer last year stripping and putting it back together again so not very pleased I may have to do the same again this year.
I am waiting to see what the reply from Humber is before I consider anything else at the mo.
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Old 13 February 2011, 10:04   #14
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I cant help but think there is sommat very wrong with that boat. Saw it at IoM and it looks nothing like our 6m destroyer. I remember that you went down from the suzuki standard 19 inch pitch to a 17 to get the revs, whereas I was going the other way to a 21 to keep them down! We keep in the wot rev band even with two up going to IoM with 150 litres of fuel onboard and locally with our usual 5 people and say 70 litres of fuel. Why is your boat so much harder to drive that it needs the 17 incher, and could that be a reason for stresses that the transom ain't coping with?? With a 19 inch prop I was regularly going up to and over 6k (recommended 5-5.5k) with a 17 inch prop it would be screamin its nuts off!
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Old 13 February 2011, 10:10   #15
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I cant help but think there is sommat very wrong with that boat. Saw it at IoM and it looks nothing like our 6m destroyer. I remember that you went down from the suzuki standard 19 inch pitch to a 17 to get the revs, whereas I was going the other way to a 21 to keep them down! We keep in the wot rev band even with two up going to IoM with 150 litres of fuel onboard and locally with our usual 5 people and say 70 litres of fuel. Why is your boat so much harder to drive that it needs the 17 incher, and could that be a reason for stresses that the transom ain't coping with?? With a 19 inch prop I was regularly going up to and over 6k (recommended 5-5.5k) with a 17 inch prop it would be screamin its nuts off!
I have the standard 19" prop which is just right. Remember mine is set up for cruising rather than wavejumping and has a large double width console up front with a lot of kit on and in it for cruising in out of the way places.........
While I am obviously disappointed at the moment lets see what Humber say tomorrow first.
They may sort it quickly enough as a build defect as it so obviously is to everyone including me. Quinqari sorting it for them would be even better as they are just up the road but lets hear what they are going to do first before putting the company in the pillory and chucking tomatoes!
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Old 13 February 2011, 11:55   #16
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Hi Bruce can only echo what the guys have said in terms of sheer dissapointment for you especially after your prelonged damage repair last year!! Can only hope you get it sorted quickly and it wopuld be good all round if Quinquari could help then that at least would better for you.
Hope everything goes ok and you are back on the water soon.
Regards
B
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Old 13 February 2011, 12:35   #17
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Remember mine is set up for cruising rather than wavejumping
meaning what exactly??????????????
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Old 13 February 2011, 13:00   #18
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Quote:I have the standard 19" prop which is just right
you didnt seem to think that in march 2010

Quote:
I only get 5100 WOT with a DF90
I am looking for a reason for your problem Bruce not criticising your rig. I have used Humber destroyers around the world- falklands, cyprus, greece, netherlands etc etc and have driven shedloadsa them at boat shows but have not seen this problem on any or seen one that looks like yours- I assume its tube diameter but destroyers are usually long lean beasties compared to the way yours looks. which may explain the difference in performance which may impinge on your problem.
Having said that the object of this thread is to get your boat sorted so I'll just let you get on with it!
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Old 13 February 2011, 13:46   #19
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Bruce there looks to be very little thickness of glass on the top edge of your transom, if any. It does look remarkably like swelling of the internal ply because of water ingress. For your sake I hope it's not bogging in there.
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Old 13 February 2011, 13:49   #20
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Well I'd get the tomatoes out I'm afraid, after the fact they've already had one go at fixing it, and all the lost time its cost you.

Theres something moving around in there for a reason, and they obviously havent found it, or dont want to dig too deep to find it. Poor from such a company I'd say
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