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A beautiful beach of the past Kings on the Kona coast on the big island of Hawaii is shown
here just to get you in the mood for a cruise, swim or snorkel with the friendly fish and the
giant sea-turtles or just a great, great place to get away. Sea kayaking is a great sport here.
here just to get you in the mood for a cruise, swim or snorkel with the friendly fish and the
giant sea-turtles or just a great, great place to get away. Sea kayaking is a great sport here.
These photographs have nothing to do with a sea
going kayak but are presented here for the visual
presentation of yet another multi-hull sailboat under
construction (the Kiwi-18) which represents the
latest in simplest cold molded construction
techniques with epoxy and mahogany strip veneer
composite construction. This technique lends itself
very well to wooden aircraft construction and is
extremely easy and forgiving to the beginner who
wants to build a light, very stiff and strong craft.
Epoxy used is the West System. Refer to the Links
tool bar in the left window.
going kayak but are presented here for the visual
presentation of yet another multi-hull sailboat under
construction (the Kiwi-18) which represents the
latest in simplest cold molded construction
techniques with epoxy and mahogany strip veneer
composite construction. This technique lends itself
very well to wooden aircraft construction and is
extremely easy and forgiving to the beginner who
wants to build a light, very stiff and strong craft.
Epoxy used is the West System. Refer to the Links
tool bar in the left window.
Notice the compound curves that can be achieved from
using flat veneer strips. The two photos shown here
are that of a modern ocean going 18 foot multi- hull
outrigger sail boat that is designed as a prototype to
exactly duplicate the weight of a production version to
be manufactured from all fiberglass and polyester or
vinyl composite resins. The total skin thickness is only
0.25 inches (6 mm) and is far stiffer than those made
from fiberglass and polyester. No screws or nails
have been used in the construction.
using flat veneer strips. The two photos shown here
are that of a modern ocean going 18 foot multi- hull
outrigger sail boat that is designed as a prototype to
exactly duplicate the weight of a production version to
be manufactured from all fiberglass and polyester or
vinyl composite resins. The total skin thickness is only
0.25 inches (6 mm) and is far stiffer than those made
from fiberglass and polyester. No screws or nails
have been used in the construction.
As shown to the left, torture bending at its worst. The saying is generally
"what ever works with what you have". The strength of the epoxy is very
much evident. Notice the prepared deck scarf joints ready for the fore
deck attachment.
"what ever works with what you have". The strength of the epoxy is very
much evident. Notice the prepared deck scarf joints ready for the fore
deck attachment.
The aft deck has been installed and the water tight lazarette can be
seen for access to the spade rudder bearing, rudder removal shaft pin
and storage area.
This craft is totally epoxy bonded and has an outside color finish
coating on top of the epoxy with extremely hard linear polyurethane.
The spade rudder can just be seen below the hull.
seen for access to the spade rudder bearing, rudder removal shaft pin
and storage area.
This craft is totally epoxy bonded and has an outside color finish
coating on top of the epoxy with extremely hard linear polyurethane.
The spade rudder can just be seen below the hull.
Kiwi 18 Sail Plan
| SeaKayak - 20/2 Line drawings for the SeaKayak - 20/2, a 20 foot long 2- place |
To the trained eye, the performance can be observed.
To those who need a specifications data chart, one is
presented from the drawing as shown to the right.
The construction method is not to be found in kayaks
that are offered from kit manufacturers. It is not the
flat panel Strip-built (SB) and Stitch & Glue (S&G)
method. Construction is closer to the Strip-built
method but layered in a different manner that provides
contoured stiffness. Thin plywood veneer or fine clear
grain cedar strips may be used. For abrasion
resistance, fiberglass may be added to the outside but
is generally not needed as the resin does add weight.
These are truly fun craft to occupy and propel yourself
and a friend through the water. It is a very gratifying
form of accomplishment when one completes the
construction and does the water ventures. The
dolphins really do come up to your kayak to see you if
you remain very still. My wife and I witnessed this
when we kayaked across Kealakekua Bay on the Big
Island of Hawaii where the famous English explorer
Captain James Cook, R.N. was killed by the natives. A
white colored monolithic monument was constructed
there in 1874 to honor the man for his fabulous
explorations and discoveries. There is a bronze
plaque just at water level (below at high tide) marking
the exact spot where he met his unfortunate fate.
Don't forget to wear rubber snorkel or boating foot
wear as the sharp coral will cut your feet.
To those who need a specifications data chart, one is
presented from the drawing as shown to the right.
The construction method is not to be found in kayaks
that are offered from kit manufacturers. It is not the
flat panel Strip-built (SB) and Stitch & Glue (S&G)
method. Construction is closer to the Strip-built
method but layered in a different manner that provides
contoured stiffness. Thin plywood veneer or fine clear
grain cedar strips may be used. For abrasion
resistance, fiberglass may be added to the outside but
is generally not needed as the resin does add weight.
These are truly fun craft to occupy and propel yourself
and a friend through the water. It is a very gratifying
form of accomplishment when one completes the
construction and does the water ventures. The
dolphins really do come up to your kayak to see you if
you remain very still. My wife and I witnessed this
when we kayaked across Kealakekua Bay on the Big
Island of Hawaii where the famous English explorer
Captain James Cook, R.N. was killed by the natives. A
white colored monolithic monument was constructed
there in 1874 to honor the man for his fabulous
explorations and discoveries. There is a bronze
plaque just at water level (below at high tide) marking
the exact spot where he met his unfortunate fate.
Don't forget to wear rubber snorkel or boating foot
wear as the sharp coral will cut your feet.
Kiwi-18 above - compound curves can be
accomplished
accomplished
To the right is a proof of lines concept model for an 21
foot ( l.o.a.), ocean sailing, 2- place wood and fiberglass
trimaran day sailor with forward cutty for one person to
get out of bad weather.
A very comfortable area for beach camping as well.
Photos to the right.
The model has stringers only for viewing the shape. The
real construction would have none, like the Kiwi 18 shown
above. Floats (amas) would fold down for trailering and
the mast is self rotating. Safety netting would be between
the main hull seating and each ama. Forward netting can
be optional as this has turned out very beneficial in
previous trimarans.
The interesting thing about trimarans, besides being very
fast and stable, is the main hull volume increases to the
cube power (cubic feet of inside space) for every foot in
length. This provides lots of comfort because of the rapid
increase in space for occupants and amenities.
foot ( l.o.a.), ocean sailing, 2- place wood and fiberglass
trimaran day sailor with forward cutty for one person to
get out of bad weather.
A very comfortable area for beach camping as well.
Photos to the right.
The model has stringers only for viewing the shape. The
real construction would have none, like the Kiwi 18 shown
above. Floats (amas) would fold down for trailering and
the mast is self rotating. Safety netting would be between
the main hull seating and each ama. Forward netting can
be optional as this has turned out very beneficial in
previous trimarans.
The interesting thing about trimarans, besides being very
fast and stable, is the main hull volume increases to the
cube power (cubic feet of inside space) for every foot in
length. This provides lots of comfort because of the rapid
increase in space for occupants and amenities.
Proof of lines concept
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| The Shape of Things Have Been Here for Some Time The Marine Division section shows the similarity between aircraft and boat construction. Also, check out the Gougeon Brothers, Inc. "West System" in the Links section. Their book on boat construction is the best on the market and an absolute must for wood aircraft builders. Much more usable than what the EAA sells. For a large bound book, the price is very easy on your pocket at $36.40 Listed under their How to / Products section: The Gougeon Brothers on Boat Construction - 5th edition, Hardcover-406 pages You are missing out of extensive professional technical help if you do not have a copy of this book. Invest in your knowledge as if you were investing in a college educational course. It is a must for home-built aircraft builders . |
| Copyright © 2000- 2010 by Richard W. Fraser All Rights Reserved |
| Click on picture above to enlarge and again click on the enlargement to sharpen with some viewers. |
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FRASER AERO TECHNOLOGY COMPANY
Marine Division
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| Including Arthur Piver's Original Modern Sailboats Catalog of Designs |
Page 1
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| Rohr Industries, Inc, Marine Division US Navy Surface Effect Ship Past Developments |
| A few more model testing photos and drawing scans will be added later. |
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| 3KSES Surface Effect Ship at bottom of page |
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