Reply
 
Thread Tools Search this Thread
 
Old 18 March 2008, 11:16   #41
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 10,114
Quote:
Originally Posted by 9D280 View Post
err is it not there for both / all reasons?

My boat had been kept on a mooring by previous owners, and so both the trim tab and Clamp bracket anodes are almost gone, new ones on order, so I'll hopefully be able to give you a "before & after" comparison of the trim tab / anode effects soon!

The other job is now to remove about 1/4 tonne of old antifouling......
9d280 - yes - sorry I wasn't implying that that anode didn't serve a corrosion protection role - just that taking it has another role and therefore should not be removed even in a boat which is not stored afloat.
__________________
Poly is offline   Reply With Quote
Old 18 March 2008, 11:24   #42
Member
 
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
i did say it was only removeable on some engines.

I have seen quite a few race engines with it removed - maybe they just put a bolt in there or something or even cut the tab off to reduce drag.
__________________

__________________
codprawn is offline   Reply With Quote
Old 18 March 2008, 12:43   #43
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,611
Oooooooh I must have bought a classic race boat!!!!!!!

__________________
9D280 is offline   Reply With Quote
Old 18 March 2008, 17:04   #44
alt
Member
 
Country: Ireland
Town: Galway, West Eire
Make: Cranchi
Length: 5m +
Engine: 2 x Volvo KAD300
Join Date: May 2006
Posts: 644
Send a message via MSN to alt
Any Zapcat/Thundercat people out there? I need to lower my engine but don't know by how much. I took pics that I can show to people
__________________
alt is offline   Reply With Quote
Old 27 January 2009, 15:54   #45
Member
 
Country: USA
Town: Massachusetts
Boat name: 2 intense
Make: n/a
Length: under 3m
Engine: outboard
Join Date: Jan 2009
Posts: 22
I sure wish there were rows of cat tunnels to look at in Northeast USA!
__________________
audiobill5 is offline   Reply With Quote
Old 27 January 2009, 16:08   #46
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Quote:
Originally Posted by audiobill5 View Post
I sure wish there were rows of cat tunnels to look at in Northeast USA!
It might be worth importing one from the UK at the moment with the weak against the $?
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 28 January 2009, 08:27   #47
Member
 
Country: USA
Town: Massachusetts
Boat name: 2 intense
Make: n/a
Length: under 3m
Engine: outboard
Join Date: Jan 2009
Posts: 22
No kidding! Almost every good looking cat SIB looks like it's from your side of the pond!
__________________
audiobill5 is offline   Reply With Quote
Old 07 February 2009, 20:44   #48
Member
 
Country: France
Town: Cannes
Boat name: midkat 550
Make: apoge
Length: 5m +
Engine: 2x50 Tohatsu
Join Date: Jan 2008
Posts: 126
trim tab

you just have to remove the trim tab, cut the fin, then put in place again.

It has no effect on the torque because when the boat is flying at speed, the tab is out of the water, the prop has 2 blades submerged, but not the top one.

Attached 2 pictures of Aquarius, they are equivalent to your Ceasar, those run very fast - the white one has a 850cc Yam giving well above 120hp and goes 122kmh, the red one has a 50 Tohatsu.
The white cat has the engine set very high, the picture lets see the cone of the leg, its center is at water level, and it has a nose cone because the water pick-up holes are too high to be efficient.

I don't know the prop installed on your engine, but if you needed one, I have a 17" and a 19" both SS available
Attached Thumbnails
Click image for larger version

Name:	Aquarius 440.jpg
Views:	137
Size:	46.2 KB
ID:	40369   Click image for larger version

Name:	AQUARIUS speed.jpg
Views:	141
Size:	38.6 KB
ID:	40370  
__________________

__________________
yorfuoj is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:17.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.