My thundercat - Page 18

Roflhat · 04 November 2018, 18:14

Quote:

Originally Posted by Pikey Dave

Great effort, well done [emoji106]
I reckon you could still shave a few more kilos off & gain a few more MPH[emoji6]

Quote:

Originally Posted by chipko

Holy shite! ‘Hats off’ Roflhat.
Amazing result, so pleased for you and your team.

Cheers!
It’s a bulky dry suit ok! For Friday we went all out, just wetsuits on with helmet and life jacket. Total crew weight 164kg so only 4kg above the minimum. But the boat could be 20kg odd lighter, there’s just nothing to take off it

Pikey Dave · 04 November 2018, 20:40

Quote:

Originally Posted by Roflhat

Cheers!

It’s a bulky dry suit ok!....

Oh not that old chestnut [emoji23] I’ve used that excuse meself[emoji12]

Roflhat · 18 November 2018, 13:23

I've sent the powerhead away for more work, will still be standard but to homologation spec, essentially blueprinted. Got a few more things I'm going to try, fancy gearbox oil, a bit of weight reduction although I think I'll be lucky to get 2kg off. Don't think I can go for my carbon fibre cowling idea within the rules.
Got some other ideas too, even considering replacing a lot of stainless bolts with aluminium. Ceasar do make a faster hull which is around 4kg lighter too, that would be the biggest step but looking at around £3k for that.
Getting a new billet exhaust made, just to design spec.

Roflhat · 19 November 2018, 19:33

Think I'll go ahead with a new boat, a Macleod Special for high speed, won't be quite as good in the rough though.
If anyone is interested in buying the F10 hull let me know, I'd be looking for around £2400

Exhaust is now finished, looks really good

69cmw · 19 November 2018, 20:40

Quote:

Originally Posted by Roflhat

Think I'll go ahead with a new boat, a Macleod Special for high speed

How fast you hoping for?
What’s the difference between that and the boat you have?

Roflhat · 19 November 2018, 21:26

Quote:

Originally Posted by 69cmw

How fast you hoping for?
What’s the difference between that and the boat you have?

I'm aiming for 70 knots now. Thats 80mph and 130kmph, a lot of big numbers!

I've got the F10 which has a slightly curved bow, better for the rough/surf. The new one will be flatter at the bow, around 20cm shorter and 4kg lighter. If I had the money I'd keep both, one for rough water and one for speed

69cmw · 20 November 2018, 20:08

How long does it take from ordering in SA to delivery in Scotland?

Roflhat · 20 November 2018, 20:11

Quote:

Originally Posted by 69cmw

How long does it take from ordering in SA to delivery in Scotland?

Should be here early next year, Ceasar shuts in 3 weeks for christmas so the boat won't be finished until next year. Are you interested in one? It saves quite a bit shipping multiple boats together

69cmw · 21 November 2018, 13:38

Quote:

Originally Posted by Roflhat

Should be here early next year, Ceasar shuts in 3 weeks for christmas so the boat won't be finished until next year. Are you interested in one? It saves quite a bit shipping multiple boats together

I will pm you

RickW · 22 November 2018, 07:36

Quote:

Originally Posted by Roflhat

Should be here early next year, Ceasar shuts in 3 weeks for christmas so the boat won't be finished until next year. Are you interested in one? It saves quite a bit shipping multiple boats together

Thanks for reaching out to me also - still deciding to be honest so don’t think I will be buying shortly as veering towards a rib

Does your mate have any pics or better vids of his surfcat?

Rick

Roflhat · 22 November 2018, 20:50

He's not got any photos of it on the water, but he doesn't drive it fast enough anyway. It's an awesome boat the surfcat, as an all rounder it's hard to beat

jeffstevens763@g · 23 November 2018, 18:18

Quote:

Originally Posted by Roflhat

He's not got any photos of it on the water, but he doesn't drive it fast enough anyway. It's an awesome boat the surfcat, as an all rounder it's hard to beat

Ever thought about becoming a dealer for ceasar

Roflhat · 23 November 2018, 19:11

Quote:

Originally Posted by jeffstevens763@g

Ever thought about becoming a dealer for ceasar

I really should, the issue would be having inventory all the time

69cmw · 23 November 2018, 20:45

Quote:

Originally Posted by Roflhat

I really should, the issue would be having inventory all the time

I reckon he would make a good shipping and transport agent [emoji12]

A1an · 24 November 2018, 21:11

Congratulations Seamus.

John Kennett · 24 November 2018, 22:07

Congratulations, that’s a really good result. Well done for seeing it through!

Roflhat · 26 November 2018, 21:46

Quote:

Originally Posted by A1an

Congratulations Seamus.

Quote:

Originally Posted by John Kennett

Congratulations, that’s a really good result. Well done for seeing it through!

Thanks very much!

Roflhat · 18 December 2018, 22:08

Lots of plans for over the winter, mostly small fairly boring jobs. Doing all the weight reduction I'm allowed to, even if it's just grams.

New exhaust is fitted, I took the tiller apart and removed all excess wiring.
Also sharpened up the trailing edge of the gearbox, the idea to join up the water more smoothly and reduce drag. It will be getting painted again along with a few other bits. Thinking of bead blasting the block, looks cool and also saves weight on paint.

Had my 15G Yamaha bored out at the gearbox side and then spent about half a year with the dremel smoothing it out. Will get it balanced before I use it again.

Got a new block courtesy of Davie Anderson, free of charge can't thank him enough. Bottle of whisky is on it's way to him

Also going to try and use a smaller steering damper setup. Shame as mine is working absolutely perfectly but it weighs about 3kg. Normally no problem but I'm trying to save all the weight I can. Will probably have to use heavier oil to get the stiffness required, and may have to get it revalved.

Tried to work out an equation for propeller pitch optimization, pretty basic stuff and I'm not going to work from it but doesnt' actually look too far off. Not using my absolute max speeds as I only tried 1 propeller at those settings.

Thinking of finding the best height for the engine on the new boat and then removing the jacking plate too, to save weight. Even going to remove the visor cap from my new helmet to make it more streamlined.

jwalker · 19 December 2018, 19:16

As a seasoned Ribnetter you should be able put a few more 'oles in that!

See that prop you borrowed to get the max speed, didn't you sneak a mould off it before you had to give it back?

Roflhat · 19 December 2018, 21:18

Not allowed extra holes sadly! Or maybe just as well or I’d be driving about with an engine like Swiss cheese

Got a couple photos of the prop but got another prop which I’m pretty sure will be faster. I tried it down at Coniston and it was only 0.8kn off the best, and it had a chunk out of one blade. I’ve had it repaired now and it looks lethal, lots more testing to do