Hunton/ilmor Build

[DAREDEVIL]

Originally Posted by larby

Oh good, back on form then DD... Please for god's sake don't ruin this fine thread too, it's the best one on here!

James

Why do you always think i ruin things ?? i mean i thought its an open forum and i can post my opinion...also as i said my hat of to Peter.

dont you have anyhting else to do ..like maybe try to get your boat ready or so ???

your the one starting at all times to get threads like this fine one off track, not me !

[TomLinley]

lets keep this thread on track for its purpose. No worries re the wrap, all looking great.

[peterunwin]

Hi All,
Have decided to split the long sections of exhaust into three parts so i have had some silicon connectors made to suit the pipe, also fabricated two outdrive stands which are adjustable in height to make fitting and removing the drives very easy and a one person job, also be useful for working on the drives.
Should be fitting them as soon as they come back from their holidays in America

Peter

[Carl]

peter thats the first thing i dont like on this thread,most disapointed..........................the carpet on the drive stands has got to go

[Jon Holmes]

But thats "Axminster" Carl!

[baj666]

Originally Posted by Jon Holmes

But thats "Axminster" Carl!

and knowing Peter he's got the best underlay under it too fitted with a micrometer

[Jon Holmes]

[peterunwin]

Hi Guys,
When Carolyn finds the hole under the sofa.... i will be in "BIG TROUBLE"

[Ph@ntastic]

[peterunwin]

Hi All,
Spent the last couple of days making adaptions to my centre lathe so that i can linish and finish polish all my exhaust tubes, using the automatic feed on the lathe this makes it a semi automatic process, saves an awful lot of hard work and gives a very consistent finish

Peter

[baj666]

Originally Posted by peterunwin

Hi All,
Spent the last couple of days making adaptions to my centre lathe so that i can linish and finish polish all my exhaust tubes, using the automatic feed on the lathe this makes it a semi automatic process, saves an awful lot of hard work and gives a very consistent finish

Peter

what a bloody good idea ...that would'nt be an old Henry Milnes lathe would it? looks very much like mine from what i can see. Anyway ime still smiling here over your idea for a constisent and regular looking way to polish tube

[peterunwin]

Originally Posted by baj666

what a bloody good idea ...that would'nt be an old Henry Milnes lathe would it? looks very much like mine from what i can see. Anyway ime still smiling here over your idea for a constisent and regular looking way to polish tube

Hi baj666,
My lathe is a 1960 Crowthorn i operated this lathe during my apprenticeship at Rawdon Foundry, after i left to set up my own business with my late father in 1976. Rawdon Foundry went into receivership in 1978 and i bought the lathe at the closing down sale, think i paid about £1200.00 for it.. and it is still going strong

Peter

[baj666]

Originally Posted by peterunwin

Hi baj666,
My lathe is a 1960 Crowthorn i operated this lathe during my apprenticeship at Rawdon Foundry, after i left to set up my own business with my late father in 1976. Rawdon Foundry went into receivership in 1978 and i bought the lathe at the closing down sale, think i paid about £1200.00 for it.. and it is still going strong

Peter

intresting story Peter

[peterunwin]

Hi All,
Lots going on.. started assembling the steering and switchgear permanently also mounted the compass and satellite receiver. The radio control components arrived yesterday these comprise of a receiver box with all the switchgear in it a standard remote which i can use as a backup,it will also be very useful for servicing work when the boat is ashore, the other remote is a special which i have now potted into the steering wheel housing and that will be connected to my own buttons.

Peter

[peterunwin]

Hi All,
Been busy working on other boat projects lately so haven't done much on Carbon Cheetah.Here are a few shots of the modifications made to the gear linkage and cable support bracket as these did not match the cable stroke or original bracket position. While i was working on the other projects i have had quite a few aerodynamic wing calculations done with a view to using these on Carbon Cheetah these would be manufactured in carbon fibre and will be low drag high lift configuration, i am probably going to test prototypes on the old diesel boat.

Peter

[larby]

I always wondered why 'wings' like that aren't used more on boats, other than for fear of looking stupid if done wrongly.
Surely you're better of using aerodynamic lift to get you clear of the water than hydrodynamic due to drag, constant change of the water surface etc? Not something I know much about though!

James

[Bob Webb]

James,
..that would be 'cos you need an impractical size wing to generate significant lift in relation to boat displacement. Using relatively small forces to do good things takes some careful design optimisation (just happen to know that this is exactly what Peter intends).
Think this should become another thread when some foils are made, instrumented and evaluated. You are right though, some excellent things could and should be done with aerofoils on 50+knot boats.
Just adding a big lifting surface to a boat will not work though. (PM me and I'll show you how to estimate the max available lift forces, or just look at the 16m^2 rigs that 150lb kitesurfers use in F5...)

Bob

[Bob Webb]

Peter,
I suggest a name like Versahelm (although perhaps a tad bland) might suit the fly-by-wire steering. It describes well what it does; adjustable flight envelope to ensure safe and accurate steering at any speed, offset of wind moment and complete knowledge of where the drive will be when you land from airspace. It also shuts down predictably in the case of collison of other reasons for failure.

The 'helm' aspect of the name does not constrain the use of plenty more excellent future features.
Bob

[peterunwin]

Hi All,
Drives have arrived back from their holiday's in America and i have decided to blueprint the lower units to get the best possible finish, this has involved a lot of hard work with a body file, i then hand finished them with 360 wet and dry and paraffin.

Peter

[Scand]

Very nice work.
The factory finish looks a bit rougher then what I expected.