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wayneakp

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Posts posted by wayneakp

    important buoyancy question

    in Technical Questions and Answers

    Posted

    We worked it out based on weight of the boat, therefore volume of water displaced. I still think this is wrong as I am sure it has more to do with the density of the water. For example a boat will sit higher in salt than fresh water.

    Should have paid more ayttention at school.

    Maybe I'll be having a submarine then :o

    rgds

    Wayne

    important buoyancy question

    in Technical Questions and Answers

    Posted

    Hi

    Not being the acedemic type I have a question regarding bouyancy in boats. Now I know there was a greek fellow who worked all this out. :grin:

    If I want to know where the waterline would be in a given hull how do I do that? - I think I am right in that the volume of the displaced water equals the volume of the submerged part. So therefore does it follow that the weight of the object equals the weight of the displaced water in order for the upward force to equal gravity

    So all I have to do is find out the weight of my boat, equate that to litres of water and the level where that amount of water would be if it were inside the boat would be the waterline? :yawn:

    Or do I sink?

    thanks

    Wayne

    Out on Osprey

    in The Norfolk and Suffolk Coast

    Posted

    Hi all

    This weekend we had an unexpected trip out with Barry and Sharron on Osprey. Barry was doing his powerboat level II and a paasage had been planned for today. Following a kind invite we tagged along for the ride :grin:

    The weather forecast this morning was 3-4, SW slight - not quite sure where that forecast was for though - could'nt have been Lowestoft :o

    Suffice to say we had a "interesting" time comparing the virtures of planning hulls Vs semi's as along the way as we found the holes in the water :o:o

    So thats a few more sea miles under our belt.

    post-710-136713731532_thumb.jpg

    post-710-136713731564_thumb.jpg

    Many thanks to Barry and Sharron, and of course John of Norfolk Powerboating for a fantastic day :clap:clap:clap

    Fuel consumptions

    in Technical Questions and Answers

    Posted

    Hi

    This is gonna be another silly I guess but anyway:

    Has anyone ever come across any tables or even a rule of thumb regarding average fuel consumption for various engines on boats. Looking around there seems to be lots of choice but the last thing I want to would be to look at a boat that I could not afford to fuel. Is it always the simple case that the bigger the engine the worse the economy or is there a point at which the size of the engines match the weight of the boat in such a way as to give better economy than smaller ones - if you see what I mean?

    rgds

    Wayne

    My stay at WRC in the Caravan....

    in Holiday Tales & Blogs

    Posted

    Hi Brian

    It was good to meet you at the weekend.

    I saw the coolest thing ever last week ..and that was a caravan :o

    This guy had a remote control which drove the road wheels and steered the jockey. He and his misses detatched the van from the car and then reversed it into the pitch by remote :shocked:shocked:shocked ..cool

    Have you got that :grin: and can you get one for boats :naughty:

    Wayne

    Bits and bobs and a trip in a veteran racing boat

    in The Norfolk and Suffolk Coast

    Posted

    Hello Barry,

    good to hear from you and your interest in 'Pirate'.

    I took part on Prate in the 2008 race and what a suberb event it was, lots of knockers, but we were one of only 3 boats that went all the way round on water, not boat trailers.

    The provisional date for departure from Lowestoft is Monday 23rd August. More details as time goes by, but I'll buy you a pint or 2 in the Belgian Bar at Ramsgit!!!!!!

    Have a look see here http://www.oceanpirate.co.uk

    Paul

    Hi Paul

    I woul'nt mind being pencilled in for the trip.

    rgds

    Wayne

    ratings on a dinghy

    in Technical Questions and Answers

    Posted

    Hi Steve

    Category A - Ocean.

    Extended voyages with wind force in excess of Beaufort force 8, and significant wave height of 4 metres or above.

    Category B Offshore

    Offshore voyages in possible wind force of Beaufort force 8 and significant wave heights of up to 4 metres.

    Category C Inshore

    Voyages on coastal waters, large lakes, bays estuaries, or rivers, where wind force of up to force 6 on the Beaufort scale and significant wave heights of up to 2 metres may be experienced.

    Category D Sheltered waters

    Designed for voyages on sheltered inland waterways, including lakes, rivers and canals, where wind force 4 and significant wave height of 0.5 metres may be experienced.

    regards

    Wayne

    Dinghy

    in Technical Questions and Answers

    Posted

    Hiya guys

    I have been trying to find a very small leak in the floor of the dinghy. It seems as there is a very slow leak around the valve which takes a week to deflate. Typically the valves seem not to be the common ones. Can anyone reccommed somewhere that repairs dinghys where I could have the old valve replaced with a newer type.

    Thanks

    Wayne

    Dinghy

    in Technical Questions and Answers

    Posted

    Hi

    Firstly I think there should be a special board entitled "Numpty Questions" - I would post there a lot :grin:

    If anyone has seen me lower the tender in the water they will immediatley see me raise it again when I realise I have left the transom plug out and it fills with water :o (Yep - everytime so far) :oops::oops:

    The "valve" thing looks like it should be sort of one way and it does not seem right to rely on a plug fitted on the outside of the boat to stop the water coming in - is that right ? :?

    thanks

    Wayne

    Bilge Pump(S)

    in Technical Questions and Answers

    Posted

    Hi

    Hvaing spent the past couple of weekends crawling about the bilges installing a holding tank I have noticed something that is, to me at least, very odd :?

    The bilge is divided up to three individual and sealed sections. The lazarrette , which has a big pump in, the engine bay which has a little 500 gph pump , and here's the strange bit the forward section, the largest of them all and no pump at all.

    Am I missing something as to why the forward section has no pump ? - the boat is nearly 30 yrs old so I must be missing something else it would have had one fitted before now.

    rgds

    Wayne

    Holding tank

    in Technical Questions and Answers

    Posted

    Hiya all

    I have now got a nice new electric toilet installed and have built a frame to house the holding tank. This frame is softwood and under a bunk so it will not be seen. I was thinking that I really ought to put sometimething on the wood to protect it so I went down to the local Blakes stockist to get some Bilge paint. Of course I need primer too and the little amount I need will be over £30.00 :o

    Has anyone got any suggestions for a cheaper route?

    regards

    Wayne

    Fender clips

    in Technical Questions and Answers

    Posted

    Hi all

    IU am looking for some fender clips to make it a little easier for Maggot to get out / put away the fenders. At the moment they are tied to the bottom of the stanchions which is a bit of a pain if not a little un-nerving when bending over to untie at deck level :o

    I have seen quite a few different types / makes: Fenderfast, fenderloc etc. Can anyone advise which are good?

    Also some of the guardrail is wire. I guess it would be ok to hang the fenders from the wires as long as we keep them close to the stanctions?

    thanks in advance

    regards

    Wayne

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