Wildcat Sport - Aluminum
Bill of Materials
The following listing is to serve as a general guide only for
hull cost estimating purposes; do not use for buying
materials without first checking the instructions and plans
for various options (such as differences due to changes in
powering methods which will vary each boat), and to local
suppliers for what material sizes may be available. In other
words, each builder must make decisions as to how he will
build the boat and use materials, and then take off a listing
to suit. Note that if the length of the boat is varied, so
too will the material listing. Materials are listed for the
basic hull members only and do not include options,
variations, interior members, etc. Thus the listing will vary
and not all members are necessarily included - check the
plans. Only marine alloy of the 5000- or 6000-series should
be used. Common acceptable alloy designations include 5052,
5083, 5086, 5454, 5456, and 6061. For saltwater use, the 5086
is recommended except that extruded shapes can be
6000-series. While full-length hull plating panels can be
formed by welding, single long panels are preferable to
performing this procedure. In any case, the builder should
check for plate or sheet size availability and plan the
material utilization for minimum waste. While shorter members
can always be butt welded to form long members, a doubler
plate is usually advisable behind or on top of all such
joints, lapping a considerable distance, and being welded all
around.
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WILDCAT SPORT 22' - ALUMINUM MATERIAL LISTING
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MEMBERS
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SIZE/TYPE
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AMT RQD
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Sheer
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1-1/4" Sch. 40 pipe
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52'
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Tunnel, cockpit corners
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3" Sch. 40 pipe
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23'
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Chine bars
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1/2" round bar
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80'
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Keels
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3/8" x 3" flat bar
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28'
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Stems
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3/8" plate
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2' x 9'
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Spray deflectors
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3/16" or 1/4" x 1" flat bar
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80'
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Longitudinal stiffeners
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1/4" x 1-1/2" flat bar
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240'
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Cockpit sole and lining stiffeners
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1-1/4" x 1-1/4" x 3/16" angle
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150'
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Misc stiffeners
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3/16" x 1-1/4" flat bar
1/4" x 1-1/4" flat bar
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20'
40'
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Bulkhead stiffeners
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1/4" x 1-1/4"
1/4" x 2"
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80'
80'
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Transom cross beam
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3/8" x 1' plate
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8'6"
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Transom
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1/4" plate
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2' x 8'
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Bulkheads/frames
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.188"
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150 sq.ft.
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Bottom plating (hulls)
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.160" or .188"
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1 @ 4' x 20'
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Tunnel plating
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.125"
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Varies from 3-1/2' to 6' wide x 23'
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Tunnel side, side plating
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.125"
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3 @ 4' x 24'
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Upper side, cockpit lining, aft cap
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.100"
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2 @ 3' x 22'
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Cockpit sole, motor well trays
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.125" diamond plate or eq.
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1 @ 8' x 20'
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Decking
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.125"
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1 @ 6' x 10'
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Tanks
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.125"
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45 sq.ft.
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Return
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