General Concept
A full size steel trawler yacht for long range ocean voyaging.
Steel is chosen for ruggedness and economy in building. This vessel
could certainly be built in aluminum, and if that were the preference, one
could increase fuel capacity for a longer range under power..
The Greatheart 54 is intended to accommodate a couple with two children
or two guests on a circumnavigation. The interior offers a very
spacious pilot house having a pilot berth above the aft cabin, a huge galley
and saloon area for social activities below, two heads, two private
staterooms, plus a project room / large office. The forward head even has a
bath tub..! Nice..!
Power and Range
As with the other members of the Greatheart family, the GH 54
hull is designed after the Pacific Northwest fishing vessels, only made
considerably less burdensome for the sake of long range efficiency. The
engine chosen is the John Deere 6068, mated to a Sabb reduction gear driving
a Helseth Controllable Pitch Propeller.
Equally viable engine choices would be the excellent 6 cylinder engines
offered by Lugger, Gardner, or CAT in the range of around 125 to 150
horsepower.
Displacement will vary from around 45k pounds to around 58k pounds fully
loaded. Using the Beebe algorithm to calculate range under power, the
GH 54 range will be approximately 3,000 NM at an S/L of 1.15 (around 7.5
knots). Lower speeds will yield longer range, as expected.
Design Genesis
Several of our designs share the
same essential source hull type, in this case
derived from the North Pacific
fishing trawlers which operate in all
weathers in the Gulf of Alaska, a place where the
ocean is... well, not so nice. We
refined the fishing trawler hull type to create
a more yacht-like shape and that became the
"Greatheart / Gulliver" series. See
the following links for vessels in the Greatheart series...
Greatheart
36 |
Gulliver 46 |
Greatheart 48 | Greatheart 54 |
Greatheart 60
We then modified
the hull to create the "Vagabond"
series which makes use of a proportionately longer waterline
and a more upright stem and transom. Combined, this reduces the
overhangs and increases the WL length to gain more interior space with
less overall hull length. Check out the following links for boats in the Vagabond series...
Vagrant 49 |
Vagabond 50 |
Voyager 52
| Valdemar 53
For more information on this or other designs, please
inquire
