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| Repower Articles |
| Bossea - Repowering a Trojan International 10 Meter |
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| How did it all turn out? BOSSEA is now about 1000 lbs.
lighter than before the repower due to the weight advantage of the Yanmar's
over the Detroits. About 40 hours are on the engines as of this writing.
BOSSEA cruises very comfortably at 23-25 knots at 2800-2900 RPM. This is
a huge difference from the old 16-17 knot cruise with the Detroits. Top
end is now just over 30 knots at 3400+ RPM. Fuel consumption is right at
one nm/gal. The engines are also noticeably quieter at cruising speeds.
These are terrific results. |
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| Ready for sea trial
- Here's the completed job just prior to the initial post-installation
sea trial. To my eye, this is an extremely clean installation. |
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| What could be done differently if it were
to be done all over? One of the undesirable aspects of the Detroits was
that they produced enough soot to noticeably darken the hull sides where
the side exhaust exited the hull. The Yanmars are much cleaner, but the
side exhausts still slightly darken the hull side. Rerouting the exhaust
through the transom might have been a smart thing to do, and it still may
get done someday. Another opportunity for improvement is based on the fact
that the Trojan has a very torturous path to follow for wiring that goes
between the engine compartment and the flybridge helm. Seaboard suggested
that a new straight-line conduit from engine compartment to bridge could
have been fabricated and installed that would have saved enormous amounts
of installation time, and benefitted any future work of similar nature. |
| Was is all worth it? Definitely yes. The results of
the repower are outstanding, and exceed expectations. It's like getting
a new boat for less than half the price. The total price of the repower
was around $85,000, which is a significant investment. However, any attempt
to purchase another boat in equivalent condition with equivalent power would
have cost much more. |
| A testimonial on Seaboard Marine: |
| I can unhesitatingly recommend Seaboard Marine for
repower work. They are willing to work in your favorite yard or in their
yard. Their facility has the extra benefit of being fully equipped to
fabricate just about any part needed to complete the job without undue
delay. Tony Athens is extremely knowledgeable, and his crew of Frank
and Bill are very talented and experienced. But more importantly, they're
dedicated to doing the job the "right" way, and don't cut corners or
do sloppy work. Since completing the job on BOSSEA, they've been very
helpful in answering questions and fine tuning the installation. The
on-going support they offer is great. |
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| Handing over the final check - After
the successful sea trial, there's the minor business of settling up with
Tony Athens by making the final payment. |
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Bossea - 10 Meter Trojan International |
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