PowerYak Bill of Materials
DO NOT PURCHASE ANY MATERIAL UNTIL YOU READ THIS SECTION.
LUMBER: White oak, mahogany (Philippine or Honduras), spruce, or
similar types of wood common to the area for boatbuilding can be used. Since
the lumber required is minimal most good quality wood is acceptable. The wood
should be knot free (small solid ones are permissible), properly dried, and
free of splits. Lumber designated as 1" is "four quarters"
lumberyard stock, usually finished to 3/4" net thickness. All widths are
NET and the noted lengths allow for cutting to fit. The lumber dimensions are
noted by the thickness followed by the width: eg. 1" X 3/4" would be
ripped from 1" (3/4" net) material to a 3/4" width.
NOTE: The types of lumber listed are as used on the prototype; spruce for
light weight and mahogany for appearance. As stated in the prologue, other
species can be substituted. Although the sizes are noted individually, it is
best to group the lumber, purchase "random/random" (varying widths
and lengths) lumberyard stock, and rip and trim to the required sizes. CHECK
ALL SIZES TO THE WORK PRIOR TO CUTTING.
LUMBER: Abreviations : Mahog = mahogany; SP = spruce
| ITEM |
MATERIAL |
NO. PCs. |
SIZE |
| Breasthook |
Mahog |
1 |
1" X 6" X 7" |
| Sheer |
Mahog |
2 |
1"x5/8"x17' 6" |
| Deck beams #8 & #9 |
Sp or Mahog |
makes both |
1"x51/2"x 32" |
| Deck beams #10, #11, & #12 |
Mahog |
makes all |
1" x 5" x 32" |
| Carling |
Mahog |
2 |
1" x11/4"x 13' |
| Aft end of cockpit beam |
Mahog |
1 |
1" x 2" x 2' |
| Longi top cleat |
Mahog |
2 |
1" x 1" x 9' |
| Aft deck strongback |
Sp |
1 |
1"x 3/4"x 2' |
| Clamp at cockpit |
Sp |
2 |
1/2"x 2 1/2"x 8' |
| Clamp at hatch |
Sp |
2 |
1/2"x 2 1/2"x 4' |
| Clamp at #8 & #9 |
Sp |
makes both |
1/2"x 3" x 3' |
| Cockpit coaming #18 |
Mahog |
makes both |
1" x 6" x 8' |
| Spray shield |
Mahog |
makes both |
1" x 5" x 30" |
| Hatch coaming/frame |
Mahog |
makes both |
1"x 1 1/2"x 4' |
| Hatch beams |
Mahog |
makes both |
|
| Hatch battens |
Mahog |
makes both |
1" x 3/4" x 7' |
| Seat ledge S-2 |
Mahog |
makes four |
1" x 3" x 18" |
| Seat brackets #16 (B-2) |
Mahog |
makes eight |
1" x 2" x 4' |
| |
|
PLYWOOD: All plywood must be intended for marine or exterior use.
Interior grades are NOT acceptable. Marine plywood has higher grade inner
plies, while the exterior grade cores may be of inferior material with inner
voids not apparent to the eye. In most cases, the glues used in both marine and
exterior panels are the same. A solid core marine grade is preferable, although
an exterior grade can be used with the understanding that unseen interior voids
can cause problems. Douglas-fir plywood is acceptable, but high quality Okoume,
mahogany, or other veneers (usually imports) are preferable. The grade of the
exterior veneer of plywood panels is identified by the letters A, B, and C with
A being best, etc. The best face of all panels should be the one exposed. Any
patches on lower grade veneers should be on the interior, especially on the
forward bottom. Check the PLYWOOD LAYOUT on the Full Size Pattern sheet 1 of 2
for method of utilizing the listed plywood to obtain the various parts.
DF = Douglas-fir; PW = plywood; Ext. = exterior; Mar. = marine.
|
| ITEM |
TYPE |
NO. |
SIZE |
| PANEL I, II,& III |
Ext. DF AB or Mar. AA |
3 |
1/4"x 4'x 8' |
| PANEL IV |
^Ext. DF AB or AC |
1 |
1/4"x 4'x 8' |
|
^Optional - 1 sheet 4 mm x 4. x 8' Ext or Mar.- AA or AB -
mahog.
*STITCHING WIRE: Copper wire 12 or 14 ga. - 50 lineal feet
*MICROSPHERES: (or equal) - 1 lb.
*SILICA: - 1 lb.
FIBERGLASS: All fiberglass cloth is to be marine grade, Volan treated
"E", 6-8 oz.;
*FIBERGLASS TAPE: For interior junctions per the LAM SCHED.
Cut at 45 degree bias from cloth 38" wide - 1 1/3 yd (4')
**FIBERGLASS CLOTH: For covering exterior, sides, bottom, and deck: 11
1/3 yds. (34') 38" wide cloth.
"POXY-SHIELD" SLOW EPOXY RESIN:
*For encapsulating, resin putty fillets, gluing, applying interior and
exterior tape- 1 gallon
**For EXTERIOR fiberglass covering - 1 gallon
NOTE: Resin quantities assume minimal waste.
|
| *FASTENINGS: |
| Screws - Flat head, bronze wood screws: |
| 3/4" #8...8 dozen |
1" #8...8 doz. |
1 1/2" #8...8 doz. |
|
| Nails - Annular type boat nails: 3/4" #14...500
each |
| |
|
* The GLEN-L POWERYAK Stitch and Glue Kit includes all of these items
PLUS brushes, squeegees, and rollers for application.
** The GLEN-L POWERYAK Fiberglass Covering Kit includes all of these items
PLUS brushes, squeegees, and rollers for application.
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