Endurance Racing, the future?? - Page 11

hunton69 · 09-12-2008, 09:58 PM

[QUOTE=Pash 1;145487]Ermmmmmmmmmmmmmmmm

Less of the

and more of the

But you wont be in the same class as the out and out racers will you

You can put me in any class i don't give a t--s. I think even JF knows that.

Half the RB3 class were quicker than us and the odd RB4 boat on Round britain.

hunton69 · 09-12-2008, 09:58 PM

[QUOTE=hunton69;145491]

Quote:

Originally Posted by Pash 1

Ermmmmmmmmmmmmmmmm

Less of the

and more of the

But you wont be in the same class as the out and out racers will you

You can put me in any class i don't give a t--s. I think even JF knows that.

Half the RB3 class were quicker than us and the odd RB4 boat on Round britain.

On a flat sea

hunton69 · 09-12-2008, 10:00 PM

Quote:

Originally Posted by Pash 1

the boat is..............

So how quick is it without engines

Pash 1 · 10-12-2008, 05:59 AM

Quote:

Originally Posted by hunton69

So how quick is it without engines

Off Beachy Head we should achieve a maximum speed of 9.81M/second

Matt · 10-12-2008, 07:45 AM

No, it'd accelerate @ 9.81 m/s^2

Pash 1 · 10-12-2008, 07:58 AM

Quote:

Originally Posted by Matt

No, it'd accelerate @ 9.81 m/s^2

Spot on.... was looking trough my old Physics books to check if I was correct before being corrected by you guys but couldn't find it...

Jon Fuller · 10-12-2008, 08:25 AM

Quote:

Originally Posted by Pash 1

Actually the drives are No 3 not 3a's Mr Fuller...

If they are, they appear to have had 3A lower units fitted. (which is I think is the only visible difference tween 3 & 3A)

hunton69 · 10-12-2008, 08:29 AM

Quote:

Originally Posted by Pash 1

Off Beachy Head we should achieve a maximum speed of 9.81M/second

motorvator · 10-12-2008, 09:06 AM

Quote:

Originally Posted by Pash 1

Off Beachy Head we should achieve a maximum speed of 9.81M/second

Not being pedantic or anything but isn't it more likely to achieve that off the crane

I would think when sinking through water it will be a lot slower

Pash 1 · 10-12-2008, 09:06 AM

Quote:

Originally Posted by Jon Fuller

If they are, they appear to have had 3A lower units fitted. (which is I think is the only visible difference tween 3 & 3A)

I dont know Jon, but the drives are 19 spline and i understand that 3a's are 26 spline...

Pash 1 · 10-12-2008, 09:09 AM

Quote:

Originally Posted by motorvator

Not being pedantic or anything but isn't it more likely to achieve that off the crane

I would think when sinking through water it will be a lot slower

Honestly Mate you crack me up..... Its the Play on words "Off Beachy Head" I was talking vertically !!!!!

Jon Fuller · 10-12-2008, 11:01 AM

Quote:

Originally Posted by Pash 1

I dont know Jon, but the drives are 19 spline and i understand that 3a's are 26 spline...

The 3A's were available as options with large or small shaft., I think the 4's & 5's were all large, as are the 6's.

Mine is the small shaft, with crescent leading edge (later style lower unit casing style, like yours)

Jon Fuller · 10-12-2008, 12:22 PM

This is a little more complex and I'd need to get it past a few people first!

especially the 13 litre M3 bit.

www.boatmad.com/Marathon/Marathon.Rulesv8.pdf

Mikko Oikari · 10-12-2008, 01:59 PM

Volvo D6 need 11 litres in M4...

Jon Fuller · 10-12-2008, 02:09 PM

Quote:

Originally Posted by Vildarib

Volvo D6 need 11 litres in M4...

It would certainly be a snug place for a 435+ hp engine (amongst mainly 4.2 litre 315 hp Yanmars), but as I've proposed to reduce M3 to 13 litres, the 5.5 litre Volvo D6 would fall in with the 5.8 litre Yanmar 440/480's and FPT/Cummins 5.9 litre 480's.

It's hard to ignore the fact that the Yanmar 4.2 litre 315hp diesel was probably the most popular (and reliable) engine used in RB08, it kinda deserves it's own class purely on that merit and would create a very competitive class.

I'm still not certain if the Goldfish Dmax 380's have much in the way of external modifications, if they do, they'll be forced to run in M3.

Matt · 10-12-2008, 02:21 PM

I think the confusion might be that the D6 is a quoted example motor for M4, but excluded by capacity.
Apologies if I misread.

Mikko Oikari · 10-12-2008, 02:22 PM

Quote:

Originally Posted by Jon Fuller

It would certainly be a snug place for a 435+ hp engine (amongst mainly 4.2 litre 315 hp Yanmars), but as I've proposed to reduce M3 to 13 litres, the 5.5 litre Volvo D6 would fall in with the 5.8 litre Yanmar 440/480's and FPT/Cummins 5.9 litre 480's.

It's hard to ignore the fact that the Yanmar 4.2 litre 315hp diesel was probably the most popular (and reliable) engine used in RB08, it kinda deserves it's own class purely on that merit and would create a very competitive class.

I'm still not certain if the Goldfish Dmax 380's have much in the way of external modifications, if they do, they'll be forced to run in M3.

From the Goldfish website:

Technically the injection pump is reconfigured to achieve a different fueL. and timing curve, the turbocharger is modified for larger airflow, valve timing is optimised for improved engine breathing with more.

OK Jon. You and the Scorpions need your own class(M4)

Hm...The M7 looks like it´s made for me

Jon Fuller · 10-12-2008, 02:28 PM

Quote:

Originally Posted by Vildarib

OK Jon. You and the Scorpions need your own class(M4)

C'mon Mikko, that comment's not fair.

As apposed to having your own class to yourself! (M4)

The 315's are quite unique in their popularity and deserve a decent playing field that's 'level'. Our move to M4 is still far from definite, you definitely have 5.5 litre motors and at 435hp (and soon to 500 you tell me) they definitely outclass the 4.2 315hp Yanmar. Is that how you want it, a string of hollow victories.? and in the same breath you critisise Buzzi for rule fixing, we're just trying to get this thing as fair as we can.

Jon Fuller · 10-12-2008, 02:40 PM

Quote:

Originally Posted by Matt

I think the confusion might be that the D6 is a quoted example motor for M4, but excluded by capacity.
Apologies if I misread.

Yes, I wondered how long it would take someone to spot that!

Fixed.

Mikko Oikari · 10-12-2008, 02:49 PM

Quote:

Originally Posted by Jon Fuller

C'mon Mikko, that comment's not fair.

As apposed to having your own class to yourself! (M4)

The 315's are quite unique in their popularity and deserve a decent playing field that's 'level'. Our move to M4 is still far from definite, you definitely have 5.5 litre motors and at 435hp (and soon to 500 you tell me) they definitely outclass the 4.2 315hp Yanmar. Is that how you want it, a string of hollow victories.? and in the same breath you critisise Buzzi for rule fixing.

Jon. It was meant as a joke...
I will race in M1 with Vilda