the difference between the Coot-A and the Coot-B? The Model A
version of the Coot has a single tail for optimizing yaw control on the
water. The B model had twin tails, but was later not recommended by Molt
due to its inability to counteract side-winds while taxied on water at
low speeds. Also, the B model is not as easily towed on a trailer.
can I locate Coot parts?
now 40+ years since the Coot was designed, and a number of Coot projects
are for sale (see the Message Board) at 40-year-old prices.
These represent extraordinary opportunities to strike a good deal with
a former builder who might have lost his medical, and who would like to
see his efforts come to some fruition, even through someone else's hands.
If the project is >50% complete, you won't be able to obtain a repairman's
license for your Coot, but many of these projects represent painstaking
accumulations of parts with relatively little assembly, often <50%.
Get this in writing from the seller, if possible, so you can qualify as
the original builder and apply for your repairman's license.
should I get started?
you plan to build most of the Coot yourself, it's a good idea to order
the Coot plans and read the Construction Manual thoroughly. You can
easily purchase enough wood locally to build some wing nose ribs or
even some of the smaller hull bulkheads. Then you can call up some
of the builders listed on the Message Board with
greater knowledge and personal building experience. Drive or
fly to their homes and inspect a few before you settle on a particular
purchase. If you'd rather purchase a completed or nearly finished
Coot, then learn about the Coot through the books available on the
web site, and join the Coot community (see the next question) to become
intimately familiar with the Coot in all its variations. This will
reduce your chance of an investment woe later.
should I contact other Coot-builders?
simplest way is to attend a regional Coot-builder's meeting in your
area. There are annual meetings in 2parts of USA (Oshkosh WI &
Arlinton WA) that are announced in the Calendar of Events
on this web site (under Coot Information). A second approach
is to look at the Photo Gallery (also on this site)
and click on a state or region near you. Sometimes you'll find a map
with the initials of Coot-builders shown in their approximate locations,
with images of their Coot revealed by a click. A third idea would
be to purchase "The Coot in a Nutshell"
from me ($20) and read the list of all the Coots (pages 9 -13) as
well as the phone numbers and email addresses of their builders (pages
52 - 54). Finally, you can subscribe to the Coot-builder's Newsletter
and get to know others through their contributions. If none of these
ideas appeal, then give me a call or email me directly.
much experience should I have to build a COOT?
most important knowledge (experience) is to be able to interpret a
set of shop drawings, such as you might have used in your high school
shop class. If you don't have a lathe or welding equipment, seek help
from a professional, preferably someone recommended by your EAA chapter.
You should know how to use most hand tools, and esperience with a
drill press and radial arm saw can be learned quite easily in a shop
class. I started building my COOT before I had ever held a power tool
in my hands, and it turned out pretty well. Just remember that a COOT
is a more complex aircraft than a Breezy, for example, because you
incorporate retractable landing gear and folding wings into a water-proof
hull. There is no particular step that is harder than building a Breezy,
so just take 1 or 2 drawings at a time, and you won't get overwhelmed.
extensive should my workshop be?
Some people take years to expand their workshop before they even consider
starting to build. Such people are probably procrastinators. It would
be prudent to have a workbench, a wallboard for hanging some tools,
and the equivalent of a one-car garage at your disposal before you
start. After a year or two you'll want a little more space for fitting
the wings onto the hull, but this can be schedulded during the summer
if you don't have a two-car garage. Essential power tools for your
workshop include a radial arm saw, a drill press and a belt sander.
How long will it take to build my COOT?
Of course, the answer is entirely up to you. Do you buy a book so
you can dash through it, or do you savor sentence structure and revel
in finely pollished sentences? Do you want to be airborne in 1000
hours or do you take pride in seeing your gluelines as thin and tight
as a silk thread? Molt Taylor has estimated that it takes 1500 hours
to build a COOT, but some of us have taken twice as many. The next
question is: how do you want to divide up those hours? What are your
other commitments to family, work and home? Some builders think they
will find all kinds of building time when they retire, only to discover
that other things get in the way before their COOT's are ready to
leave the nest. If you can't find an average of an hour a day to devote
to building, then perhaps you should consider buying a COOT that is
already built and flying.
Will my COOT carry more than 2 people?
Molt Taylor designed the hull of the COOT for just 2 people. Unless
your passengers are feather-weights, your COOT will have trouble lifting
off the water with 3 or 4 people. One builder stretched his hull to
accommodate 2 jump-seats for the kids, and it worked quite well. However,
he eventually sold it and built a lighter 2-place version.
What sort of engine would be ideal for my COOT?
Franklin, Continental or Lycoming engines (in that order of preference)
are fine, provided their horsepower exceeds 180 and they are fitted
with a constant-speed (variable-pitch) propeller. Everyone moans (including
me) about their high cost, but most automotive engines just don't
have as much power and reliability. A possible exception is the rotary
engine. Two COOT's have flown successfully with Mazda engines, but
no other automotive engines have been successfully applied as of 2013.
There is some interest in the Subaru engine, but nobody has flown
a Coot with one as yet.
- Can I
build the wings out of aluminum?
is theoretically possible to do this, but it would require much time and
skill, and there would be little or no weight advantage.
Back to Top