[C320-list] [SPAM] Re: Boat Speed

[pjaarch]

I did just sand and paint the bottom.  I am loased down as I am curreinly 
cruising but so are the other boats I am with.  During the sea trail we did 
run the boat at near 4000 RPM which makes me believe the boat is under 
proped.  He told me you could run the boat all day like that but I was lead 
to believe that you should run it only at 80% of the rating.

Paul Adison
C320 #722

----- Original Message ----- 
From: "Rick Evans" <ericstillwellevans at gmail.com>
To: <C320-List at Catalina320.com>
Sent: Monday, July 06, 2009 8:08 PM
Subject: [SPAM] Re: [C320-list] Boat Speed


> Paul
>
> I have number 724 and last year with a crappy bottom she would still get 
> 5.5 sometime 6knts depending on wind, current etc.
>
> This year I scraped all old paint put on VC offshore and wet sanded with 
> 400grit and took a wire brush to the prop to insure a smooth surface. The 
> other day I was out in a slack tide and at around 2700 she was doing 
> 7knts. This is through the water not over ground on gps. I only have a 2 
> blade prop.
>
> In any event dirty bottoms and gunked up props could easily be the cause 
> of slow speeds. When I first bought the boat the surveyor took it for a 20 
> mile jaunt to pull her out of the water he said she wouldn't do better 
> than 5knts. When they pulled her the bottom was a mess and the prop looked 
> like a barnacle factory.
>
> If you just bought her was she surveyed? Was the bottom and prop clean?
>
> Rick 724
> ------Original Message------
> From: pjaarch
> Sender: c320-list-bounces at lists.catalina320.com
> To: C320-List at Catalina320.com
> ReplyTo: C320-List at Catalina320.com
> Subject: [C320-list] Boat Speed
> Sent: Jul 6, 2009 5:39 PM
>
>
> I just purchased my 320 several weeks ago and am concerned about the boat 
> speed while under power.  I have a 3GM30F and cruise at about 5.4 knots at 
> 2700RPMs.  It seems slow to me.  I am currently cruising with other boats, 
> a (hunter 28, beneteau 331, and an Irwin 38.)  They all cruise easily 6 
> knots at 2700 RPMs and I can't keep up.  I have a 3 blade prop.  Could I 
> be under proped?  What is the cruising RPMs for the boat?  I have no ID 
> plate on the engine block.  I assume it is rated for 3400.
>
> Paul Adison
> C320 #722
> "Rough Draft"
>
>
> Sent via BlackBerry from T-Mobile