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Old 23 July 2022, 08:35   #1
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Country: UK - England
Boat name: Tango
Make: Humber
Length: 5m +
Engine: Yamaha 115
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Hi - Newbie Alert :-)

Hi All,

I’m new to this forum, not totally new to boats, but there’s lots to learn about ribs for sure. Previously had a SIB and a Quicksilver Commander 600 with a 115 Mercury.

We have recently bought a Humber 5.5M RIB, not sure of the model or age (we think old!) My partner bought it off EBay. The engine was no good (old Johnson 70 2 Stroke) so we’ve just upgraded the engine to a 2006 Yamaha 115 4 Stroke and had it all professionally fitted and set up.

Now worried that the engine is too big for the boat, as we took it for a first test (River Trent) and when we opened it up a fraction, we did get water over the transom. Hopefully, this is more due to trim and speed v engine too big ��

We’re going down to Cornwall next week, so we’ll see then what happens.

Thanks for reading ��
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Old 23 July 2022, 08:53   #2
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Country: UK - England
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Boat name: magic
Make: humber 5.5
Length: 5m +
Engine: mariner 115
MMSI: 232012453
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any pics how many chines has it got the destroyer has single chine and the ocean pro has 2 i think .i have a 5.5 destroyer with a mercury 115ct and its on the limit for transom weight . i dont get water over the transom but there's not much freeboard at all. mine is the lightest outboard in its class at under 165 kg the destroyer has a max transom weight of 190kg. i know of another member on here with a 5.5 destroyer with 115 yamaha and dont think he has any issues
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Old 23 July 2022, 09:12   #3
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Country: UK - England
Boat name: Tango
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Originally Posted by beerbelly View Post
any pics how many chines has it got the destroyer has single chine and the ocean pro has 2 i think .i have a 5.5 destroyer with a mercury 115ct and its on the limit for transom weight . i dont get water over the transom but there's not much freeboard at all. mine is the lightest outboard in its class at under 165 kg the destroyer has a max transom weight of 190kg. i know of another member on here with a 5.5 destroyer with 115 yamaha and dont think he has any issues
Hi Beerbelly, thanks for your reply. Iíve attached a pic.
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Old 23 July 2022, 18:17   #4
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Country: UK - Scotland
Make: Destroyer 5.5/Ring18
Length: 3m +
Engine: Yam 90HP/Yam200HP
Join Date: Jul 2009
Posts: 831
Thatís not a Destroyer.
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Old 24 July 2022, 11:12   #5
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Country: UK - England
Boat name: Tango
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Thatís not a Destroyer.
Thanks, any thoughts on what model?
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Old 08 August 2022, 22:05   #6
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Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
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Engine: Merc 60 Clamshell
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I'm going to suggest an Attque (or or it;s modern counterpart) I've got the O-pro's Grandad (max 60 HP!) , and it may just be the angle of the pic, but it looks quite a flat-ish V. can you get a pic from below, or better still - the transom?

WRT water over the transom, I assume you were fully trilmmed in when you opened up?
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