[Rhodes22-list] Jim's reply STEERING QUESTION

[Kroposki]

Jim,
	I guess that is why I tie my rudder toward the starboard when
docked.
         Ed K

-----Original Message-----
From: rhodes22-list-bounces at rhodes22.org
[mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of
jbconnolly at speakeasy.net
Sent: Monday, August 04, 2003 8:15 AM
To: The Rhodes 22 mail list
Subject: Re: [Rhodes22-list] STEERING QUESTION

On my boat, with the GB motor mount to port and the rudder all the way
down (which actually goes past vertical and puts the blade slightly
forward and under the transom) I don't think the rudder can hit the
outboard propeller.  You should check to make sure that your rudder
blade is all the way down, and that your motor is properly trimmed.
With a Tohatsu 8 HP motor on the GB mount, I had to move the pin that
holds the motor tilt latch a couple of holes from the factory setting to
position the motor shaft perpendicular to the water.  This also moves
the propeller aft and helps separate the rudder and propeller.  

If the rudder blade is all the way up ( how I store it on the mooring),
it can hit the propeller.

Jim Connolly
s/v Inisheer
1985 R-22

> -----Original Message-----
> From: Robert Dobson [mailto:dobson777 at hotmail.com]
> Sent: Monday, August 4, 2003 03:14 AM
> To: rhodes22-list at rhodes22.org
> Subject: Re: [Rhodes22-list] STEERING QUESTION
> 
> 
> Roger, As usual you give me stuff to think about and to practice. You
are 
> right , I am mounted off-center on the transom to port on Gb's motor
mount 
> raising system. I am correct to leave the motor in the straight
position and 
> do all  my steering with the tiller? It just looks like the rudder and
the 
> prop are going to intersect. What your telling me is that I do not
need to 
> be turning the rudder near as far as on a starboard turn. The rudder
can be 
> fully down all the time without a problem. Thank you for your answer.
> 
> >From: "Roger Pihlaja" <cen09402 at centurytel.net>
> >Reply-To: The Rhodes 22 mail list <rhodes22-list at rhodes22.org>
> >To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> >Subject: Re: [Rhodes22-list] STEERING QUESTION
> >Date: Sun, 3 Aug 2003 18:33:55 -0400
> >
> >Bob,
> >
> >I am assuming your Rhodes 22 has the outboard motor mounted
off-center on
> >the transom to port of the rudder.  If your outboard is mounted to 
> >starboard
> >of the rudder; then, everything I am about to tell you will need to
be
> >reversed.  Actually, if your outboard is on the starboard side; then,
I
> >don't understand why you are having a hard time turning to port!
> >
> >In forward gear, the port offset location of the thrust from the
outboard
> >motor generates a turning force or torque about the hull's Center of 
> >Lateral
> >Resistance (CLR) that tends to turn the bow to starboard.  This
torque is 
> >in
> >opposition to any forces that are trying to turn the bow to port.
Under
> >power in forward gear, it's as if the rudder were less effective
turning to
> >port & more effective turning to starboard.  If the outboard motor
were
> >mounted on the centerline of the transom, this apparent difference in
> >port/starboard turning ability would disappear.
> >
> >Try this experiment in open water, because you are going to be very
> >surprised how fast the boat will turn to port.  With the boat moving 
> >forward
> >at docking speed (1-2 knots), shift into neutral, & then push the
outboard
> >motor's tiller all the way over to port.  Now, hang onto something,
warn
> >your passengers, put the tiller over for a port turn, shift into
reverse
> >gear, & apply a burst of power!  Was that port turn fast enough for
you?
> >What happened was that both the rudder force & the thrust from the
motor
> >were directed to push the stern to starboard, which makes the bow
turn to
> >port.  Now, that you know what the boat is capable of in terms of
deg/sec
> >yaw rate to port under power, practice this technique until you
develop
> >control.  Just imagine the capability this kind of port turning
ability 
> >will
> >give you in a crowded marina &/or cross wind situation?!!
> >
> >You mentioned your outboard is a little hard to get at when it's in
the 
> >down
> >position.  Even if you leave the motor in the straight-ahead
position, 
> >apply
> >a little power in reverse gear, & steer with the tiller.  The reverse

> >thrust
> >from the port offset motor will still assist the port turn.  Again, 
> >practice
> >this maneuver in open water until you develop control.
> >
> >Good Luck, Bob!
> >
> >Roger Pihlaja
> >S/V Dynamic Equilibrium
> >
> >
> >----- Original Message -----
> >From: "Robert Dobson" <dobson777 at hotmail.com>
> >To: <rhodes22-list at rhodes22.org>
> >Sent: Sunday, August 03, 2003 3:35 PM
> >Subject: [Rhodes22-list] STEERING QUESTION
> >
> >
> > > I have a question of appropriate procedure on steering in harbor
areas
> >when
> > > using sail and motor. My concern is turning to port with engine
engaged,
> >If
> > > the rudder is fully down the prop is going to be in contact if I
am not
> >very
> > > careful to limit my degree of turn. Obviously I am doing something
> > > improperly, Excuse my ignorance. I am assuming steering with the
rudder
> >and
> > > leaving the motor alone in the strait position. Any advise is 
> >appreciated.
> >I
> > > can not find any mention of this in the support material I have
found. 
> >Is
> > > the answer to steer with the motor with rudder is tiller lock
position.
> >This
> > > inefficient and very tuff because the motor is very low over the
stern.
> > >
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> >
> >
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