Latest Launching – Pete’s Sea Strike 18

Its great to see yet another Sea Strike 18 hit the water, this time
from Pete from Albany (WA) where he fishes the Great Southern Ocean.

He writes:

My boat building journey began a little over 2 ½ years ago.
I started off by researching aluminium boat kits. I quickly came to the conclusion
that my welding skills would need to be improved, and both my welding and metalwork
equipment would need a serious upgrade (which in essence meant a substantial
financial injection) to get to the point where I would feel confidant to undertake that project.

Not to be discouraged, I began to look at alternative building materials and methods more
suited to my skills and tools. I came across Bowdidge Marine Designs whilst Googling.

The modern performance driven boats immediately caught my attention, and a subsequent
not-so-quick telephone conversation with Mark soon had me convinced that one of his
designs would be the boat I would build… the hard part was going to be choosing which design.

I had pretty much settled on the Sea Strike 16 but expressed to Mark that I thought a
larger version would be more suitable to the conditions we experience here on the
southern tip of WA. Much to my delight, Mark said that he was going to design a Sea Strike 18.

I received the Sea Strike 18 plans mid October 2012, and although I had never used epoxy
and fibre glass before (let alone build a boat) I was given the confidence to tackle such a
large project with the help and encouragement from the other members of the BMD Forum,
and the wonderful support and assistance from both Mark and Debbie.

My brother and I began marking out and cutting all the parts soon after. The next step was
the first bit of epoxing and glassing. With this task successfully under my belt, I slowly
progressed thru the build, adding to my skill-set, and sharing my accomplishments,
questions, and experiences on the forum. It wasn’t long before I was beginning to feel
like a “seasoned pro”.

Consistency was my main focus. I kept reminding myself to not get bogged down in
the nitty-gritty details of the whole project, but rather break the project down into
small, digestible, repetitive tasks; and to make sure I took enjoyment and satisfaction
from each one of these. Also, I didn’t have a deadline to meet, which meant that
I could abide by my other motto - “No short-cuts”.

I cannot even begin to come up with a figure of how many hours it took me to
complete my boat, but I stuck at it, and because of my consistency, I kept
knocking-off the “milestones” - hull stitched together and glassed, bottom
side painted, hull flipped, sole down, building complete, painting complete,
fit-out complete, and outboard installed.

The 18th December 2014 was the incredibly memorable day my boat was
finally launched. With her 135HO ETEC hanging off the back, Grant from GB Marine
and I cranked her up. Every aspect of the boats performance way exceeded my and
Grants expectations. With her 22 degree deadrise, the ride is superbly smooth and
dry, stability at rest is amazing and fuel economy is fantastic. Hole shot and top end
speed are simply exhilarating, especially when she hits a top speed of 38 kts! (70kph),
as you’re slicing through the waves and an offshore swell. I couldn’t be happier.

I have taken quite a few people out, and all have commented on how well she performs.
I can assure you that nothing beats the feeling of heading out, effortlessly and smoothly
cutting through the swell, in a “kick-arse” boat you built yourself.

Although many people have helped to make my project a reality, I really would like to
thank my wife Kylie, my father Ron, my brother Jim, Grant from GB Marine, and last
but not least, Mark and Debbie from BMD for designing such an awesome boat.

THOUGHTS ON SEASTRIKE 18- (Grant Stone from GB Marine “ETEC dealership”- Albany, WA)

First impression is the look, lines and layout.
Personally I am impressed with all these aspects, as I look at these to determine how we will rig a boat.
Access to chase tubes and size are important too. Being able to position the motor, leaving room for adjustment and fine tuning, whilst looking uncluttered and simple, is most desirable.

Dash layout and room for accessories/electronics is good and ample access is available via large inspection/access hatches. On the water the boat rests perfectly on her lines, even when two people move forward from the helm position. Forward vision is not impaired by the bow and a slightly higher seating position was provided via a pair of comfortable bosons seats.

Stability at rest is exceptional for this boat and being able to walk around the complete gunwale, bow to stern, port to starboard, without feeling the need to wear a PFD is impressive.

Manoeuvring at the Marina requires very little expertise and turning is easy in confined spaces. Once underway, the boat tracks very true and even when the extra crewman (ballast) moved around, there was no need to trim or adjust the motor to compensate.

After some fine tuning to suit the ETEC 135HO/boat set up, the transition from displacement to planing was smooth and very unnoticeable. Once under way, I was surprised to find that at 3500rpm, in medium chop and a head wind  velocity of 24kph, we were achieving 42.1 kph (23kts) and a fuel consumption of 1.92 kilometres per litre.

At this speed, the boat is very smooth and feels solid. Even though trim tabs were installed, there was no need to use them. Coupled with the 200 litre tank, using only 90% capacity and cruising at 42 kph, this boat has a range of  345 kilometres (187nm). Increasing the engine speed just increased the speed and we rode comfortably over
the 300-500mm chop. Every throttle movement can be felt through the seat meter.

Once at WOT and hitting 70 kph (38 kts), the only thing I desired was more hp, as this boat is the most viceless centre console I have ever driven! Lots of boats can go fast, but this one turns also. Graceful arcs, gentle turns, easy. But if the mood takes you, full speed hard cornering is fun.

I would recommend this hull to even a first time boatie. Its viceless handling, common sense layout and  ride throughout being the stand out features. Credit must go to the designer, Mark Bowdidge and builder Peter Cocking, who did an incredible build for a first attempt at boat building.

This boat was a joy to have at our dealership.

As with all our designs, the Sea Strike 18 is engineered to "class rules" or commercial standards as a composite design.
In our case, we use ABS or the American Bureau of Shipping scantlings.
The safety standard we use is either the USCG standard or the ABYC standard for safety requirements for compliance

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