[C320-list] Boat Speed

[Dave Anderer]

Our esteemed Commodore put together a real nice spreadsheet of the
RPM/Speed/Fuel Burn he gets.  (Karl, sorry, I forgot the URL.)  The numbers
he records there track exactly with what I see.  (And we all have hulls from
the same generation, with the same engine and a 3-bladed prop.)

On Mon, Jul 6, 2009 at 5:39 PM, pjaarch <pjaarch at verizon.net> wrote:

>
> 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"
>