I know the hp i sailed would lose way immediately when luffed up.
So it actually isn't so easy to turn through a tack..

Honestly normal shunting and sailing is so easy i don't think anyone once they've built their hp would worry about it. Except just to try it and see if they could do it.
--------------------------------------------
On Sun, 24/2/19, StoneTool owly@ttc-cmc.net [harryproa] <harryproa@yahoogroups.com.au> wrote:

Subject: Re: [harryproa] Re: Sail to Windward or Leeward... flexibility
To: harryproa@yahoogroups.com.au
Received: Sunday, 24 February, 2019, 8:00 AM


 












Mike:
    The
fore and aft rudders on the HP
should give lots of authority for tacking ..... If you
could
deploy both in opposite directions.    There really
aren't any
"rules"..... If it works decently for the
situation, it's OK.  
Short tacking up a channel is a classic case where it
would make
sense.   Anything goes.... deploying sails and
rudders any way
that works for you under the circumstances, rather
than "by the
book".    Most folks would never consider
backing up under sail
for example, but I've seen it done with a Yawl
before.



     
                               
                           
                               
   
                           
                               
   
                           
                            H.W.







On 2/23/19 4:03 PM,
Mike Crawford
mcrawf@nuomo.com
[harryproa] wrote:




 




  I completely agree, though I'm not sure
it's fully
feasible.



  My main reason would be to short-tack to
windward
without having to touch the sails on a
schooner rig.  Kind
of like tacking in a mono with a self-tacking
headsail --
turn and go.  We're about five miles from
truly open
water, and parts of our inlet are just 1/4
mile wide, so
that's a lot tacking if we want to skip
the motor.  Hours
worth.



  Shunting would be the way to go in really
light winds,
when no multi would come about, and in big
winds, where it
would be nice to avoid the stress.  In the
middle, just
coming about would be awesome.



  However, that might require more rocker
than we'd want
in a proa.  A cat is easy to set up, even
with rocker, by
balancing out the weight, but the proa needs
to be
bidirectional.  If we want to keep the bows
up, we might
want less rocker, which also would be a
benefit in terms
of reducing leeway using the hull.



  I pretend that I'd be able to come
about in 5-15 knots,
perhaps sheeting in the aft sail in the first
half of the
tack, and the foresail in the second half of
the tack,
which could be done by hand with a 2:1
mainsheet without
having to change the setting on the
winch/cleat.  Pull,
release, pull, release. 



  I also plan to use deeper foils most of the
time to
really grab the water when steering and resist
leeway when
beating.  Maine waters tend to be either deep
or not, so
an extra foot or two is fine.  That could
also help
tacking.



  But I'm not sure I'm being
realistic.



---



  One note:  if you go through old posts,
you'll see some
by Rick Willoughby about experimenting with
the lw hull to
windward to eliminate rounding-up in really
light winds. 
It's definitely possible -- the question
is if you can
reliably get there without a motor.



        - Mike








StoneTool owly@ttc-cmc.net
[harryproa] wrote on 2/23/2019 11:58 AM:



 

One of Robs many innovations is the
leeward facing
bridge deck cabin

that nearly always provides shelter from
the wind.



    I'm not sure that the sail on
an HP or HP style
boat need always be

to leeward....... It should be possible to
tack or
shunt with equal

facility, depending of the design of the
boat.     On
a long passage in

the tropics, one might choose to have the
sail to
windward to direct the

breeze into the cabin instead of
sheltering the cabin,
or perhaps one

might choose weather to have the wind to
port or
starboard based on sun

angle for shade or warmth.   In mild
conditions, the
choice of port or

starboard tack might be based on comfort
criteria
rather than rigid

sailing criteria of always having the sail
to
leeward.   I'm the kind of

guy who might change course for a few
hours on a long
passage  just to

get the sun out of my eyes, or tack
downwind to
eliminate the constant

rolling on a monohull.   Being
comfortable is more
important to me than

making the fastest time possible to the
next tiki bar
with scantily clad

barmaids and umbrella drinks.   If we
are always in a
hurry to get from

port A to port B, that suggests that most
sailors
don't really like

sailing..... they'd rather anchor in a
crowded
anchorage or park in a

slip in a floating trailer park. To me,
sailing is
about being at sea...

If I'm in a hurry to get someplace,
I'll fly!




                                                  
H.W.






























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