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Designed Boat Plans

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     Bowdidge
Marine Designs
 Boat Designs with "Reel Flare"

         We have boat plans (both yacht designs, catamaran designs and power designs) for all sizes for the amateur boat builder and Professional boatbuilder. From the 12ft Mushulu plywood stitch & glue power boat design to the Oceansky 57 strip plank composite multihull design. We design and build, plywood boats, strip plank boats and fibreglass composite boats to very modern styling for both yacht designs, multihull designs and power boat in round bilge, multi-chine or radius chine hull forms, including aluminum drift boats, aluminum landing craft, aluminum monohull boats, aluminum catamarans, aluminum special purpose boats, and aluminum RIBs

                                                                                          THE  BROADWATER 5.1

SAVE TWO THIRDS! YES, you can build your own boat & SAVE TWO THIRDS of the cost of a factory built power or sailboat, YOU can prove it ... Just order the PLANS of your choice,  build your own & you can SAVE 50% of the cost of a USED boat &, you do not even have to do all the work yourself to save.

Broadwater 5.1 Plans Price

Overall Hull length = 16 ft-9" ( 5.1m)
Beam = 7ft  (2.13m)
Deadrise @ Midship = 24 degrees
Recomended Horsepower 90Hp
Engine shaft length = L/S -21.5" 
Fuel Capacity = 100 litres (26.5 US Gal) 
Approx Hull weight (pending builder) = 686 lbs (311 kg)
Max Persons = 5 Adults

   The Broadwater 5.1 Specifications 

This new design is a very simple and approachable powerboat design, capable of being the perfect companion to adventures on the water. Originally designed for bay and open water use, I think she would fit in just about anywhere. The Broadwater 5.1 requirements were simple, she had to be a fast and responsive cabin boat that would allow comfortable cruising whilst out and about, whether it be fishing or simply a family's day outing out on the water. With a large forward cabin of over 1.52m (5ft) in length, with wide cabin seating throughout to stretch out and relax,, large storage lockers, loads of headroom  
(see image at bottom of page)
 and room to fit a toilet.

The Broadwater 5.1 has a large helm station for a boat of this size, providing ample room for all those favorite electronic toys and also an area of the boat that provides excellent visibility, control and shelter. With large storage lockers within the helm station for all those personal valuable items that one carries when out and about, the helm station within the Broadwater 5.1 is designed for easy reaching and putting you in control.

Behind the helm station, the Broadwater 5.1 with a large cockpit and wide side decks for rod holders and grab rails, she also has side pockets and large lockers aft with a ton of space in the rear lockers for a flush mounted live bait well, bait board, batteries and more.

It also has a walk-thru transom arrangement leading to a large rear deck for swimming or simply climbing on and off the boat. If you decide to keep her on a mooring, the cockpit deck is self-bailing with the sole being approx 3 inches above the loaded waterline. Also there is 685mm (27 inches) of height from the cockpit sole to the top of the side decks, which means you'll have heaps of support to lean against when grappling that big snapper or even more important, keeping the kids aboard.

The hull design concept involves a fine entry, long flat buttocks, a variable deadrise throughout and a deadrise at the transom of 15 degrees. This in combination with her chine flats and running strakes to produce lift and reducing drag, prevents squatting and provides a smooth ride as she slices thru the waves. So with this in mind, the recommended Power can be up to a 90 horsepower outboard, but keep in mind this hull does not need a lot of horsepower to be driven economically at a good speed over the water.

Under the sole, she also has a 100 litre fuel tank, giving you the capability, time and flexibility to do more boating, fishing and having a lot of family fun on the water, With a 90 Hp outboard hung of the back, the power to weight ratio of the Broadwater 5.1 will deliver outstanding range too, meaning you can cruise further and faster with better fuel economy. This maximizes your time aboard - providing more options for any given trip, the ability to go and more money in your pocket, not to mention the pride that comes from building your own boat.

LIQUID ENGINEERING:
The construction is epoxy-fiberglass-plywood composite, a stitch and glue composite system designed for efficient and fast building. To put it another way, the hull material is engineered as a fiberglass laminate whereby the plywood is treated as a thick, yet weaker laminate within the fibreglass schedule.
Building the boat is easy. The builder simply assembles the hull as a plywood boat first, then glasses the outside and inside with fiberglass, to produce a strong composite hull without all the time consuming woodwork associated with traditional plywood on frame. Bog, fair, paint then time for the internals. Its that easy
To see more on our  plywood composite construction method, please click HERE.    

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Hendrik is 6ft-2" tall or 1.88m
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COMPLETE PAPER BOAT PLANS : For our builders we offer full size printed bulkhead/ frame patterns, printed on 24" wide paper which are taped together to provide fulls size outlines. Using the full size patterns and detailed plan sheets, the parts can be accurately marked and cut out.
All Plan sheets are printed on Architectural D (24" x 36" ) paper except for the full size patterns. Detailed plans consist of  13 sheets which detail all aspects of construction.

    Bowdidge Marine Designs
Performance  Boat Designs with "Flare"
We do not offer CNC cut files for this design.

MATERIALS LIST FOR THE BROADWATER 5.1

The following list of materials is approximate and intended for calculation of approximte costs. We offer no guarantees of accuracy. The list is for all plywood in the construction of the hull, deck and interior. Allowance has been made in the quanties for about 10% wastage. Resin and glass quanties are only approximate.

MARINE OR EXTERIOR BC GRADE PLYWOOD (Do not use CD structural plywood)
6mm (1/4") - 13 Sheets
9mm (3/8") - 11 Sheet
12mm (1/2") - 2 sheets

RESIN AND GLASS (For coatings and reinforced areas)
Epoxy Resin & Hardener - 120 kg (32 US gal)
400-450gm (12oz) Double Bias - 72 sq.m ( 86 sq.yards)
3 kg (6.6 lbs) glue powder (Cabosil)
3 kg  (6.6 lbs) Q-cells (fairing Powder)

The materials list above covers all the supplies for the boat as designed.
Useage of materials may vary due to several factors. For example, a experienced builder will use less resin. Our resin calculations are based on a 50% glass content. Options, customization and variations within your build will also effect the bill of materials and outcome.  

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