twin build pictures

[Beau Parsons]

Rick

Looks awesome buddy, good luck with the first run.

Beau

 

[Steve Seebold]

I'm curious, so I'm going to ask a dumb question because I don't know.

It seems to me that if a rigger were balanced correctly and the lift on the props was correct, there would be no need for the skis on the back of the boat. Don't those skis actually drag in the water? It just stands to reason that if they drag in the water, that takes horsepower and when you lose horsepower, you lose speed.

Maybe I'm wrong. Please correct me if I am.

BTW, nice boat. Nice clean set up.

 

[Rick Pirrone]

hi all

a video from todays testing still around 130kph/81 mph

but now need stonger booms lol

http://youtu.be/B5zKR-6jW5Y

 

[tobbec]

Yes its something to think about..

now its only booms that damage.. stronger booms might damage the hull more...

 

[Matt Mordja]

Great video, thanks for sharing. In slow motion it looks like the starboard sponson got tweaked first causing the wreck. What were the old boom tubes? What would be strong enough?

 

[Steve Seebold]

hi all

a video from todays testing still around 130kph/81 mph

but now need stonger booms lol

http://youtu.be/B5zKR-6jW5Y

That's an under statement!!!

 

[Rick Pirrone]

Great video, thanks for sharing. In slow motion it looks like the starboard sponson got tweaked first causing the wreck. What were the old boom tubes? What would be strong enough?

thanks matt

yes in the vid on the last lap it took a hit hard rounding the corner and i noticed the inside sponson pointing upwards then the next one she dunked most prob tub a bit too close the water

std alloy tubes 6060 with doublers inside thik i will try this looking at 6061 t6 but i will have to maching down to 16mm

of carbon fibre

cheers rick

 

[Rick Pirrone]

Yes its something to think about..

now its only booms that damage.. stronger booms might damage the hull more...

yes tobbec good point or maybe carbon fibre still giving me a breaking point

cheers rick

 

[Tom Foley]

5/8th's (.625") 6061 - T6 .058 wall tubes will take some serious punishment in a twin , Carbon is too expensive for me but many use it . I usually carry 2 sets of boom tubes cut to length for a race because as you have found out ..++it happens !!

 

[Joe Warren]

I'm curious, so I'm going to ask a dumb question because I don't know.

It seems to me that if a rigger were balanced correctly and the lift on the props was correct, there would be no need for the skis on the back of the boat. Don't those skis actually drag in the water? It just stands to reason that if they drag in the water, that takes horsepower and when you lose horsepower, you lose speed.

Maybe I'm wrong. Please correct me if I am.

BTW, nice boat. Nice clean set up.

Skis are a instant Planing surface as soon as the boat is launched and the prop sucks the water across the ski it become a planing surface even before the boat pulls away from the bank...

 

[Rick Pirrone]

5/8th's (.625") 6061 - T6 .058 wall tubes will take some serious punishment in a twin , Carbon is too expensive for me but many use it . I usually carry 2 sets of boom tubes cut to length for a race because as you have found out ..++it happens !!

tom i found some 6061 t6 here local its 5/8th's (.625") 6061 - T6 .049 wall

a bit thiner bit i will double it up with the next size down in the tub section

cheers rick

 

[dr gary turner]

Use carbon fiber/fiberglass tubes. Stronger aluminum will not break but will break the sponsons and tub doing one of those nose in manuvers or hitting a bouey etc. . Have used carbon glass tubes for years. To me the only way to go.

 

[Joe Warren]

5/8th's (.625") 6061 - T6 .058 wall tubes will take some serious punishment in a twin , Carbon is too expensive for me but many use it . I usually carry 2 sets of boom tubes cut to length for a race because as you have found out ..++it happens !!

tom i found some 6061 t6 here local its 5/8th's (.625") 6061 - T6 .049 wall

a bit thiner bit i will double it up with the next size down in the tub section

cheers rick

Buy a 5/8 .065 wall You can ream it to fit the boom tube in the sponson

 

[Rick Pirrone]

5/8th's (.625") 6061 - T6 .058 wall tubes will take some serious punishment in a twin , Carbon is too expensive for me but many use it . I usually carry 2 sets of boom tubes cut to length for a race because as you have found out ..++it happens !!

tom i found some 6061 t6 here local its 5/8th's (.625") 6061 - T6 .049 wall

a bit thiner bit i will double it up with the next size down in the tub section

cheers rick

Buy a 5/8 .065 wall You can ream it to fit the boom tube in the sponson

hi joe

i can only get 5/8 in a .049 wall in the 6061 t6 its the largest available so i have doubled it with 1/2 .049 6061 t6

the other option i have is 2024 t3 5/8 .058 wall

see how things go next weekend we have our caribbean master race here in melboure australia

cheers rick

 

[shoboat]

Rick,

The 2024 is a solid set up. I have went to that material on my vintage 101 set up.

Good luck at the Masters next week.

Mark

 

[seaducerpete]

Thanks Rick

looks like it will be a winner for sure

Mike

mike what does a winner look like?

 

[Rick Pirrone]

hi guys shes all fixed and ready to rock again

new booms and fix n repaint sponsons

cheers rick

 

[David Moyle]

Looks great Rick!

 

[Ian Inverarity]

From last weekend:

https://picasaweb.google.com/lh/photo/H0JvLFg083taH89VM23-p9MTjNZETYmyPJy0liipFm0?feat=directlink

 

[Rick Pirrone]

hi ian

great shots mate, first pic of the twin on the water thanks for sharing

cheers rick