Page 3 - WestlawnMasthead14_Sept.10.pub

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able for children or stores complete the layout.
The cockpit and helm are comfortably laid out for
relaxed cruising. Two chairs with lounges aft. Far
aft is open with room for water activities. A swim
platform makes water access easy and serves a
rubrail for topsides with ample tumblehome.
I really love wooden boats, so the construction i
corporates elements of traditional wood constru
tion, while allowing for the benefits of epoxy. Al-
though exterior and interior glass sheathing are
called for in this plan, a slight change in scantlin
would allow for a more traditional approach wit
less glass and epoxy.
In order to confirm performance numbers, Ame
did a detailed weight study and then three differ
speed analysis: Holtrop, Propeller Handbook, an
Wyman.
Ames noted, “This challenge created an active topic on o
[Westlawn] forum boards. We students enjoyed many an
interesting argument discussing aspects of the challenge
and its broader implications on society and the boating i
dustry.”
Jon Ames
269 Stoney Point Road
Storm Lake, IA 50588
Email: jonames15@gmail.com
Phone: 712-732-5190
LOA:
30’
LWL:
29‘ 3”
Beam:
8’
Draft:
2’
Displacement:
4300 lbs
Trailer Weight:
3200-3500 lbs
DL Ratio:
79
Prismatic Coefficient: 0.70
LCB/LWL:
58%
Wetted Surface: 170 ft sq
GZ at 20 Deg:
1.03 ft
GZ at 30 Deg:
1.11 ft
Tankage
Fuel:
50 Gallons
Water:
30 Gallons
Engine:
Volvo D2 40 with 2.14:1 Gear
Propeller:
D 17”
Cruise speed:
10 knots
Top Speed:
12 knots
St. Joseph Sound Launch
Design Particulars