Super cavitating very high speed stealth surface vessel

[Len Morris 2Participant @lenmorris2]

Hi Trevor,

With all the nuts on this post a spanner could be really useful and with all the pleasant banter going on make sure it's a Whit!

Paul hasn't said anything yet about the planes, stabilizers (call them what you want) but I don't really see a problem making them articulate.

The elephant in the room is the neutral buoyancy issue.

Len

[Paul TParticipant @pault84577]

Dear All

We are having such a good time with this project and it is really nice to see so many people getting involved and proffering such a wide range of helpful advice.

All of the cogitations are now complete and I have design solutions for all aspects of this project, It will now take about 2 weeks to work up the drawings and sort out a specification.

But as we are having such a good time it is worth carrying on the discussions to explore all of the different aspects of this project.

To keep the discussion going I will say that it is easier to think of this boat as a hybrid catamaran rather that a complex submersible.

A catamaran has a significant portion of its hulls below the waterline but doesn't suffer from buoyancy problems.

The solution to the moving wing system is amazingly straight forward and Kevin will kick himself when he see's it (Kevin needs to be more flexible in his thinking)

Paul

[Bob Abell 2Participant @bobabell2]

Hello Paul

I can't wait to see the solution to the moving wing system!

We can't wait two weeks either!……….Give us a clue, please?

I' m also a bit miffed that you haven't shared your ideas, earlier, with your right hand man!

They had better be good!

Bob

[Paul TParticipant @pault84577]

Hello Captain Bob

The wing system is so simple……………there will be kudos to whoever solves the riddle.

I couldn't share any ideas before as I have only just completed my thinking process and as we are doing everything on the forum I didn't want to spoil Kevins fun.

Don't worry ……they are good.

Paul

[Bob Abell 2Participant @bobabell2]

Hello Paul

Well known phrases like….."Pigs might fly" and "Pie in the sky" and "Every blue moon" spring to mind

What are you on, these days?

I hope you are not working too hard and filling your head with thoughts of imaginary Grandeur?

Don't take offence, I'm only egging you on!

Since you've dumped me in with the Kevin's……….I'll be taking a Jaundiced look at your proposals

Bob

Bob

[Len Morris 2Participant @lenmorris2]

Who's Kevin?

Len

[Paul TParticipant @pault84577]

Hi Len

Kevin is our group term for the watchers who follow Bobs building blogs, we decided that it wasn't nice to call them lurkers so we opted for kevin.

Your thoughts on negative buoyancy have given me cause for extra thought and a little bit of head scratching and I am so pleased that people are challenging my wild assumptions.

Paul

[Bob Abell 2Participant @bobabell2]

Kevin……….Paul has confidentially revealed a nice solution to a main problem area on Ghost, but we are keeping it quiet for the time being

Where does he get these Magic Wands from?

Bob

[Len Morris 2Participant @lenmorris2]

Hi Paul,

Thanks for that. Understand.

A very long time, ago when people used matches, the boxes were printed on one side with anything to promote sales and catch the public's attention. One brand simply printed 'fortune cookie' type statements. One of them caught my eye. I had it framed and it has hung on my office wall for the past 40 years. Perhaps Kevin should read it:-

"Someone is always doing what someone else said could not be done"

Go for it Paul, warts and all!

Len

[Paul TParticipant @pault84577]

Hello Bob

Its nothing special and it wasn't a problem……its simply part of the design process.

Wands?…………I get them from Ollivander's

Thanks Len

Paul

 

 

Edited By Paul T on 16/01/2015 18:04:23

[Bob Abell 2Participant @bobabell2]

Ollivanders shop is open tomorrow

Bob

[mike farrellParticipant @mikefarrell21522]

Hi Bob and Paul ,Is the answer to levitation the a result of just speed just as seen with speed boats whilst racing in its simplest form ?

[Paul TParticipant @pault84577]

Hello Michael

You are so close to the answer.

No I don't have a magic carpet but a basic form of levitation does have a lot to do with the solution, you need to be more flexible in your approach and more elastic in your thinking, stretch your mind and the answer will spring into view.

Do you like that Bob

Paul

[Bob Abell 2Participant @bobabell2]

That was very cryptic of you, young Paul….And it all makes good sense once one knows what you are on about

Nobody will twig it, in a month of Sundays!

It's the product of a fertile mind!

The idea can easily be tried out on almost any model boat too!…..We will have to keep a watchful eye on the Southern Pretender though!

What else is up the conjurors sleeve, we wonder?

Sorcerer's Apprentice

[Paul TParticipant @pault84577]

Hi Bob

Yes if anyone can crack it my money would be on Ashley……………….no pressure Ash

Paul

[mike farrellParticipant @mikefarrell21522]

Hi Paul& Bob, Further to the levitation suggestion would I be nearer to the answer if I suggested a design loosely like the famous "flying boat" Hydroptere which when speeds were increased it lifted itself out of the water which removed water resistence.

Well just a crazy questionMichael

[ashley needhamParticipant @ashleyneedham69188]

I dont know about that, my screw thread idea was poo pooed. I will spring back though.

I feel the TENSION building in this thread. I feel the need for some leverage to make my views known

oddly enough i solve these sorts of problems by drawing endless little sketches with different ideas, and visualising the likely results and or construction issues/maintenance and that sort of thing, and mulling them over with chaps at the pond and at work…usually well before actually starting a build. Other difficult issues I actually leave sometimes until the thingt is half built so I can see inb the flesh just exactly what my options are. This has happened for the current project and the ISSUE has been solved by a method unlike that originally visualised ( I hope), Works for me.

Ashley. still not paying close attention

[Bob Abell 2Participant @bobabell2]

I think there is some sort of Counter Espionage or Cloak and Dagger work going on here, Ashley

You seem to be using the right words?…..For some reason?………And that Mike fella also!

Is there a whistle blower in Head Office?

Sorry to be so secretive, chaps, but Paul`s idea is Top Secret

Bob

[Len Morris 2Participant @lenmorris2]

Ashley,

Totally agree. You can think, draw and calculate until the cows come home but at some point you have to do something, 'Angle grinder in one hand and mig welder in the other! Have a vision, start and fix the prob;ems as they come along.

Len

[Paul TParticipant @pault84577]

Michael

Lift does have a lot to do with the answer although water plays a bigger part than air.

As the boat moves forward the water forces the legs together so the faster the boat goes the closer the wings will become, this is achieved by using the wings as foils………simple

But how do the wings open again as the forward motion slows?

What system will allow the smooth action of the wings opening and closing using ONLY water pressure as the power source.

Ashley

My money is still on you so stop building up the odds.

Bob

No intrigue, no frogs (croak & dagger) the chaps are just opening their minds to infinite possibilities, the elasticity of thought can usually overcome the toughest problem ……….and this isn't a difficult puzzle.

Len

Instead of problem solving with tools try casting your mind back to when you were a boy and look at the question through uncomplicated eyes. The answer will surprise you and make you think 'of course, how simple'

Paul

[Paul TParticipant @pault84577]

[ashley needhamParticipant @ashleyneedham69188]

Gosh, How simple. The easiest things are the best. Ashley

[Bob Abell 2Participant @bobabell2]

Paul

I still think that the wings should be synchronised somehow?

They can't possibly move in equal amounts…..Especially with powered sponsons

Don't wish to throw cold water over your idea

Bob

[Paul TParticipant @pault84577]

Bob

You throw as much cold water as you want, you have more than earned the right to criticise my work.

What would you do? (bearing in mind your comments about pie in the sky etc)

Paul

[Bob Abell 2Participant @bobabell2]

Hello Paul

I would fit a piece spur gear segment to each arm and mesh them together

And if there is any space left…..A motor with a pinion could drive one of the segments

Then that'll be a proper controlable mechanism

Well, you did ask

Bob

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