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Old 09 March 2003, 08:08   #171
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Country: UK - England
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JF OOH we have a boat designer in the house.

I am awfully sorry I should realised?

I do appologise for being cheeky and arguing the point on this specilist subject ,so I will sit back and maybe now learn something about boat design from a succsesful boat designer.

Have you got any fags left in your fag packet as I am off to get some also.

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Old 09 March 2003, 08:11   #172
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Got any mid engined success stories you designd Mr Boat/rib designer?

Tee Hee
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Old 09 March 2003, 09:12   #173
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Sorry CH, I'm not stupid enough to smoke!

P.S. If moving motors fwd 1.5 metres on jack shafts makes it mid engined you must have a bloody small boat! Have you considered in your capacity as a pub expert, that is, from what I can gather, no ACTUAL experience, why volvo and mercruiser both make such a shaft!...just for fun I expect.
Have you also ever seen a staggered instalation and wondered what the reason(s) for that might be, or bow tanks, so come on puzzled of blackpool give a bit of your vast knowelege/experience
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Old 09 March 2003, 09:29   #174
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I can get you some empty fag packets at the right price of you need any for the next boat design
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Old 09 March 2003, 09:35   #175
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why don't we wait to see what your virtual boat runs like, maybe you'll be sending them out to canada!LOL
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Old 09 March 2003, 09:58   #176
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Im no boat desiner JF but I know when to ask for expert advice.Or run with what works and is established.

To make great changes to a boats designd stability and move half ton engines around is big changes.

New ideas are great but the sea doesnt change and your experiance from what I can gather is great as far as I am concerned for Power boat racing and speed and all that stuff,

But I am a cruising man and speed development isnt of interest to me.sea keeping and longevity and better design is,the days of fag packet boat design is over in my eyes,some got it right others didnt.

This paticular hull was designed for a reason and it is a good boat with the engine where it is I believe,any changes need very carful thought and advice,from a proffesional thats is what I am saying.

I am actuly a in reality a buisness development consultant in my real life that has nothing to do with boats or design,but I am not scared to look a bit further in depth and ask questions about peoples theorys,and make my own mind up.

Dont be unhappy about it as I hope it works out ok,and if it does then great.


I have made my choices and believe they are the right ones,only time will tell,you may be right ,and if so I will be saying so,but I dont think so at this stage of the game.

There is nothing that I have heard on this thread that would make me change anything about my boat or engine or drive so far.




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Old 09 March 2003, 10:07   #177
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On the points about Bow tanks,it will help keep the nose down when they have fuel in them.A little different to moveing ones engine forward by maybe 1.5 mtrs and tanks, IMHO and as far as engine manufacturers making it possible to move your engine forward ,I would think this development is for newly designed hulls that can take advantage of that benefit in design and not existing well proven outboard/diesel 8.5 mtr hulls,that work as they are and have a good reputation as offshore sea boats as is with the diesel in the back.Also you will loose a lot of room in the boat and its a gamble that I would not take,untill I had got a second oppinion from the builders/proffesionalls.

IMHO
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Old 09 March 2003, 10:19   #178
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Quote:
Originally posted by crazyhorse
On the points about Bow tanks,it will help keep the nose down when they have fuel in them. IMHO
Baffoon, bow ballast tanks are filled with water from a scoop and dumped through a valve overboard, as and when required!
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Old 09 March 2003, 10:29   #179
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You can use either, I also had a bow fuel tank and used it to ballance my boat and I used different tanks at different times by swapping fuel from tank to tank it was an old design.

We shall agree to differ on this Engine moveing jobee as its not my boat and I think it is a big job,only for proffesionals.
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Old 09 March 2003, 10:32   #180
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Maybee in your capacity as a boat designer you can point me in the direction of a boat /rib you have designed that is succesfull with this configuration? That is 8.5 mtrs long?

One of the reasons for my concern is this.We floated a egsample 30 ft rib with a KAD 300 in her,and found that she did not have the freeboard to comply with the Iso regs 12217 for offshore power boat regs,as she did not have the minimum freeboard requirment.

This lead me to ask the question from JW was his boat CE marked of which I got no responce but I would assume if the boat is CE marked then it may be invalidated bye changes. Im not saying that she will not pass but what I am saying is there is a lot to it and when in daught get expert advice.

A friend of mine also was buying a similar type of boat and has gone for a 9.5 so as to ensure she conforms to this new stability criteria.
Now then it will help in the freeboard stakes bye moveing the engine forward but it coud have seriouse downsides from a handleing point of view and all that stuff.
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