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From: Baumgart, James (no email)
Date: Thu Sep 04 2003 - 14:26:21 EDT
Hi, I have been sailing and then we had a virus crisis here at work when I
returned. I motorsailed my Catalina 25 from Dana Point to Mission Bay (CA)
65 nmiles, single handed, and used 3 gallons of fuel running my Honda 8. I
kept the boat speed up to 6 knots all day on this 10 hour trip. I had 10
knot winds on a beam reach most of the day, 3 foot waves on the beam,
anchored out one night, and a really nice trip to my new slip in San Diego.
1- James, what type and how big is your sailboat?
I have a Catalina 25. Outboards are also available on a Catalina 27. My
slip neighbor has a beautiful Coronado 26. This beautiful and roomy boat
has a outboard well in the aft middle of the cockpit. The way I see it,
there are a lot of good reasons to go this way - the motor is protected and
cannot be swamped by a following sea, and expensive bracket to raise and
lower the motor is not needed, and the well can be closed and sealed when
the motor is not in use. Plus the motor thrust pushes against the rudder
(unlike my boat). You can still turn the motor to have steerable thrust,
you can lift the motor completely out of the water when not in use. The
motor is right under the tiller and all the controls are right there (not
hanging off the back of the transom like my boat). In really rough
conditions you could just pick the motor up and store it in the salon with
the well hatch dogged closed!
The disadvantage to the transom mounted motor like I have is that it can be
swamped in rough conditions - following seas, or (since it is port mounted)
it can be dunked when motorsailing on a starboard tack. But if you lift it
all the way up on the bracket and shut it down in these conditions - no
problem.
2- Are there any bluewater sailboats currently
in production that have a aft well for an outboard
engine?
Many tris and cats use outboards. I don't think any production, blue
water, monos use them. However, read Tania Abie's book Maiden Voyage. She
started with an inboard diesel and finished her circumnavgation (28 foot
boat, full keel) with an outboard. Even if you have an inboard, it might be
a nice idea to consider how to mount an outboard in an emergency. Extra
long shaft kits are available for outboards up to 100 HP - even though you
would never need that much power.
MacGregor 26s - hardly blue water - come with 50 HP outboards in a transom
cutout.
3- What is the maximum feasible size sailboat one
could power using an outboard engine with or without
a well system aft - 30'-35'?
[Baumgart, James]
I would think there is no limit, however, at the higher HP levels outboards
begin to cost a lot more than inboards. 200 HP Yamahas are like $US 20,000.
A 15 HP extra long shaft outboard is still light enough to lift (under 150
pounds), available with all the items sailors need (alternator, etc.) and
will fit on available mounting brackets.
4- How much outboard engine hp would one need to
power a 36' sailboat and would it be to much weight
aft or feasible?
Atomic 4's are often fitted in older boats this size. Those venerable
motors produce 30 HP. I am sure 15 HP would be fine for maneuvering and
docking. If you were planning to motor into strong headseas and opposing
currents for days on end you would probably need 30.
Yamaha has 4 stroke, high thrust, long shaft motors available from 2.5 HP to
60 HP. Probably the 25 would be a good choice for a boat this size.
William
Cape Dory 30
~~~~~Sailing San Francisco Bay~~~~~
--- "Baumgart, James" <>
wrote:
> My Honda 8 HP extra long shaft 4 stroke (gas)
> outboard drives my sailboat
> and is ultra reliable. The new model has a 27 inch
> shaft length, 12 amp
> alternator, electric start (with pull start as
> well), high thrust 4 blade
> prop, and costs about $2500. This motor burns about
> 1/2 gallon per hour
> (1/3 throttle). I get about 10 nmpg motoring in
> calm conditions. At idle,
> the boat will make about 0.5 knots, and the
> steerable motor makes docking
> and backing easy. In reverse, exhaust is not vented
> through the prop - this
> makes backing much better. I carry about 15 gallons
> of fuel total, in
> plastic tanks which also supply my dinghy. My older
> Honda motor does not
> have electric start and only produces 5 amps but
> weighs 80 lbs. The new
> model weighs 110. I would go with this motor or a
> similar Yamaha. Tohatsu
> makes a nice model as well. The Honda has a better
> pull start. It's great
> piece of mind to not depend on an electrical system
> to get the motor
> running. My wife can pull the starter cord and get
> it going on one pull.
> Fellow sailors are seeing lifetimes of 10 years or
> more on these motors.
>
> Yes, diesel is a safer fuel, and the diesel motor
> does not require an
> electrical ignition to provide a spark. But to be
> sure it still requires an
> electric starter. The newer gas outboards all have
> CDI ignition with no
> moving parts, nothing exposed to water, and are very
> simple and reliable.
> The fuel locker is vented. You can fill the tanks
> off the boat. Heavy
> plastic tanks have a long life and no leaks. You
> will probably be carrying
> gas anyways for your dinghy.
>
> It is also great piece of mind to know that you can
> always unclamp your
> motor, hoist it into the cockpit, take it ashore for
> repairs if needed, and
> AT WORST replace it for $2000 or so. Your inboard
> diesel or outboard diesel
> will require a lot more $ and expertise to repair.
> I recently brought mine
> home for a complete tune up and service - which cost
> about $10. For a
> larger boat you may want to consider a 9.9 HP or 15
> HP model. For the price
> of the diesel outboard you can buy 2 or 3.
>
>
>
>
> [Non-text portions of this message have been
> removed]
>
>
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