Wojtech Baginski has
the cabin on his Campjon raised, extended and glassed
over for river cruising in Poland
CAMPJON, CUDDY JONBOAT, 15.5' X 5',
300 POUNDS EMPTY
Campjon is based on my Jonsboat
design. I increased the hull depth to 24" from 18"
and again to 30" in the region of the 6' long cuddy
cabin. The cabin decks slope upward towards the center
so the "headroom" in the middle is about 3',
usually that is enough to allow sitting up while seated
on the floor. There is a slotted walkway on the cabin
centerline just like I've used on my AF sharpies, but
this one also has a step through to the front deck. The
front deck itself is fairly large and easier to use as
a boarding platform than with the AF sharpies. But it
is very important to NEVER let anyone ride on a front
deck like this when the boat is in motion. If they slip
off the deck they have no option but to slide under the
boat full length and through the prop in an instant.
The prototype Campjon was built by Luke
Spreadborough in Queensland Australia. Here he is using
a 2.5hp motor.
He now uses an Evinrude18 as shown in
this newer photo and like the guru has become something
of a collector of old motors and now they show up like
orphans on his doorstep.
I doubt if the increased freeboard makes
the boat any safer since a flat boat like this is not
good in rough water in any case. The higher sides do give
a feeling of greater security since this will be a boat
you are "in" instead of "on". This
would be a better family boat since the kids can be kept
cornered in the cuddy while underway. They can stand in
the slot, or look out the front or out the windows. I
suspect the cuddy will find a lot more use as a spot for
the portapotti than as a camping cabin. The cockpit as
drawn has no seats and is itself a big playpen. For seating
I suggest using common folding chairs like I have used
with satisfaction on my AF4.
When the boat is not underway the chairs are folded and
stowed, or relocated to another part of the boat or the
As for power I would suggest a good
15 hp motor or a 10hp to keep the capability of using
the smaller lakes which are wisely limited to 10 hp. With
10hp and with two normal sized adults the boat should
plane, and be very lively with one aboard. But I've noticed
with my own AF4 that weight gets added as time goes by
and I've noticed that folks usually build their boats
heavier than I do. I should add that the Coast Guard has
suggestions about powering small boats and they come down
hard on flat bottomed hard chine boats like jonboats because
of handling concerns. I think they would advise a max
of 25 hp in a hull like this. (My
AF4, which is about the same weight as Campjon, went
22mph with a 40 year old Johnson 18. Greg Rinaca's Jonsboat
went 26mph with 18hp.) There is a draining motor well
in the stern.
There are two more Campjons around
that I know of. This one is by Adam Abrego in New York
and has a raised cabin:
Constuction is nail and glue, with no jigs or lofting. From
four sheets of 1/4" plywood, two sheets of 3/8"
plywood, and two sheets of 1/2" plywood.