Brutus

[Bob Abell 2Participant @bobabell2]

You can say what you like, Curly

But if I fancy a teapot on top…….It`ll get one!……..Ha! Ha!…….You know what I mean `arry?

Bob………..On the shop floor again

[ashley needhamParticipant @ashleyneedham69188]

Pink and covered in flowers…..scary !!

Bob…calm down there man!

Ashley

[Bob Abell 2Participant @bobabell2]

Paul has issued the first batch of drawings for Brutus

I alway's enjoy starting a new project that promises to be an interesting challenge, full of mystery and unknown snags!

First question for the Drawing Office…..

Are we building on the light side or general construction? A four foot hull is quite chunky

Since Paul has selected smallish motors, for some reason, I'm a little confused.com!

I was hoping to use the biggish motors, yet to be purchased for the SloMo job

There's no rush, Paul, after all, it is Christmas Eve!

Bob the strange model builder

[Paul TParticipant @pault84577]

Bob

As you say 4ft is chunky so the build needs to be light and there is enough room to use larger motors.

Paul

[Bob Abell 2Participant @bobabell2]

Just a thought….

Paul's pioneering work of sending drawings via the net in A4 format, has opened up more opportunities for the model boat plans service!

Building Ellie and Brutus will prove that the idea is feasible and could apply to future model boat plans

Which means…. You can have your drawing within a very short time from ordering……Within the hour may be possible

Plans for sending via these means need to be specially arranged for fragmentation etc

Just an idea?

Bob

[Paul TParticipant @pault84577]

Bob

I was sat here working on the Brutus drawings when I heard an almighty clang outside.

On a more serious note you are right about fragmentation as any drawings sent by email would have to be redrawn to suit the new format.

Paul

[Bob Abell 2Participant @bobabell2]

Paul

Your jokes these days, need a short course at Bletchley Park to understand?

What are you on about….An almighty clang outside indeed?

Bob…..On 40 meg….What are you on?

[Amy jane SeptemberParticipant @amyjaneseptember49770]

……..I dread to think……… Pink and flowers sounds good to me!

[Colin BishopModerator @colinbishop34627]

Forget the pink and flowers, just put fluffy bunnies in the cockpit…

Colin

[Bob Abell 2Participant @bobabell2]

Merry Christmas, Ami and Colin

Hope you two are not driving!

Bob

[Amy jane SeptemberParticipant @amyjaneseptember49770]

And to you too Bob. Pink bunnies and fluffy flowers, a little too much Christmas spirit I think!

[HowardParticipant @howard79726]

Paul, your Brutus concept looks attractive! It seems that some current thinking on 'wave piercing' hulls shows that they are most efficient when long and thin, sometimes needing small trimaran-type outriggers at the stern for stability. That could be an interesting model to develop, from the aspects of both performance and appearance. Howard.

[Bob Abell 2Participant @bobabell2]

Thank you, Howard

You have given me a thought……Here we go, boys!

Imagine a full size ship, slender, about 300M long…..Fully water tight, Could also be Submarine shape with the Axe shape bows…..With minimum floatation compartments at the front

In a storm, would it chop through the big waves, giving a smooth ride?

What do you think, Paul?

Our model would be a nice test bed in choppy water

Bob

[Diede van AbsParticipant @diedevanabs87670]

Hi Bob, Paul,

Not sure if I am too late with it, but…

Why don't you solve your motor-placement problem by fairing the bottom to a fairly flat shape earlier in the hull? Look up photos of the Damen FCS series (http://www.damen.com/en/markets/fast-crew-supplier) – on Google you can find pictures of the bottom as well – and you'll see the aft 1/3 of the hull is practically flat. Their range goes from 33 to over 60 meters length.

Admitted, these ships are almost all full displacement hulls where your goal is clearly semi displacement or full planing hull – but I think you can get away with having a flatter aft part.

Only issue you will get by doing this, is that the twist in the forward part of the bottom will be substantial.

Love the idea of a wave-piercing axe-bow, though, and I'll follow your progress!

[Bob Abell 2Participant @bobabell2]

Food for thought, Paul

I'll not start production, 'till the dust settles?

Bob

[Paul TParticipant @pault84577]

Hi Diede

Thank you for your comments and I appreciate the amount of time that you must have spent in thinking about my problems and coming up with a possible solution.

It is only fair that I fill in a little background and explain what is driving this project and how I arrived at this point.

The inspiration behind the Brutus design came from many different areas but I have had a long term fascination with the Damen Seaaxe and ways in which the hull shape could be adapted to produce a planning hull that kept its bow in the water at all times.

The underwater profile of Brutus is essentially a hybrid which at low speed acts like a full displacement hull but at higher speed the planning surface of the lower hull (1/3 of the keel back from the bow) takes over to lift the boat, the curve in the keel keeps the knife bow in the water even at high speed.

For me the challenge of the Brutus project revolves around the hydrodynamics involved in making the concept work without making compromises.

On the downside I do have a nagging fear that I am giving life to Zaphod's comments regarding a new ship in The Restaurant at the end of the Universe……. but only time will tell.

Bob

Apart form minor shavings here and there the design wont change so don't worry about delaying your build.

Paul

[Bob Abell 2Participant @bobabell2]

Shop floor to Technical department

I`ll be getting the wood today

Any changes to the plans, received last week?

Bob………Fingers drumming

[Paul TParticipant @pault84577]

Hi Bob

No changes but there will be some additions in the form of two horizontal panels between the bow and F1 at the chine and deck levels.

Paul.

[Bob Abell 2Participant @bobabell2]

Shop floor to Technical dept

Finally got the plywood…….Looking forwardnow, to the build

Didn`t realise how big a four foot boat was, till I laid the keel out!

But it don`t frighten me, Matey Boy!

Bob

[Bob Abell 2Participant @bobabell2]

Shop floor to BiG T

Received latest batch of three prints…..OK

Made a start on the keel, using two layers of ply

Ideal for laps joints as the ply is not quite long enough and also ensures a dead flat keel

Have shown Ellie hull on keel print to show relative size of new project

Bob

[Amy jane SeptemberParticipant @amyjaneseptember49770]

ooh… Goody, looking forward to this….

[Bob Abell 2Participant @bobabell2]

Made a start on Brutus, while the paint and glue dries on SloMo

The keel is made up of several parts and glued together under a mountain of weighty stuff

The result is a strong and flat starting point, with none of the familiar plywood bow

Now for the formers

Bob

[Amy jane SeptemberParticipant @amyjaneseptember49770]

I say Bob, That workshop's too tidy!

[ashley needhamParticipant @ashleyneedham69188]

Amy. There was a thread on "show us yours" (workshops) and Bobs is indeed deluxe, notice the carpet, a nice bit of Wilton. There appeared to be a marked reluctance to show members workshops….

If you tab back somewhat you will find a couple of snaps of my shed which is stuffed full of …STUFF, materials and boat stowage. it is not very tidy but the floor is usually hoovered clean!

Ashley

[Bob Abell 2Participant @bobabell2]

Thank you, Amy and Ashley

Here`s a better picture of the famous " Shop Floor"

In full production now, working on Ellie, SloMo and Brutus

I must spend half my life up here or on the computer in the spare room , next door!

Wife doesn`t mind, as she likes to watch the telly in the peace and quiet

Bizzy B

[Author]

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