The Hull 1 Rib Plans as only one half (right hand side only) that will print on an A4 printer

Including a segmented keel so that it will also print on an A4 printer

All the ribs are symmetrical so you can use these drawings for both sides.

Ribshalf.gif  (a compilation showing the relative position of all ribs)

Rib1half.gif

Rib1ahalf.gif (this was added to make the front easier to make as I had trouble breaking the chines)

Rib2half.gif

Rib3half.gif

Rib4half.gif

Rib5half.gif

Rib6half.gif

Rib7half.gif

Rib8half.gif (This is the widest rib)

Rib9half.gif

Rib10half.gif

Rib10drivehalf.gif (showing the position of the motors and propellers)

Rib11half.gif

Rib12half.gif

Rib13half.gif (a.k.a. the unlucky one)

Don't forget the holes for the prop shafts, I would suggest making the prop shafts first or at least getting the outer tube so you know what size it is, to get the hole size right, even though I drilled the right size holes I ended up cutting some teeth in the end of an extra piece of prop shaft tube with a file and using it as a long "drill" to get rid of some glue in the holes and to cut through the hull skin from the inside. Because the construction stringers bent slightly, so did the path of the prop shaft holes!

Rib14half.gif

Rib15half.gif

Rib16half.gif

Rib17half.gif (This is where the prop shafts enter the boat)

Rib18half.gif

Rib19half.gif

Rib20half.gif

Transomhalf.gif

Keel drawing split into segments, printable on an A4 printer.