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Old 18 March 2008, 15:16   #41
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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.
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Old 18 March 2008, 15:24   #42
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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.
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Old 18 March 2008, 16:43   #43
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Oooooooh I must have bought a classic race boat!!!!!!!

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Old 18 March 2008, 21:04   #44
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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
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Old 27 January 2009, 19:54   #45
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I sure wish there were rows of cat tunnels to look at in Northeast USA!
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Old 27 January 2009, 20:08   #46
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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 $?
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Old 28 January 2009, 12:27   #47
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No kidding! Almost every good looking cat SIB looks like it's from your side of the pond!
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Old 08 February 2009, 00:44   #48
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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
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