As you can see the front mounts simply clamp over the existing landing gear legs while the rear struts are made easily removable by locating GWS strut mounts (which are normaly used for the wing struts) on both the float and the planes fuselage as quick disconnects for the rear mounts

What do you do when you crash on water?  A Couple of retrieval options:

-Canoe or boat
-Go swimming
-Train a dog to retrieve your plane
-Build an RC boat as a retrieval device
-Proboat Retrieval decoy from Horizon hobby
-Use an old fishing reel without the pole and attached a tennis ball to the end of the line.  Throw the ball out past your model and as you reel the ball in hook your plane with the ball; this works well for upside down plane recovery.

Commercially Available Floats:
-Hobbyzone Super Cub floats from Horizon Hobby
-GWS floats
-Make your own from plans noted here:

The Basics
Many people opt for floats once they have some flight experience however they don't know where to locate the rear struts for the floats.  If you remember back to when you glued your fuse together during assembly the slots for the rear float mounts are molded into the fuse and if you haven't filled it there should be a slight dimple in the foam across the bottom of the fuse to indicate this hole.   The front mounting point is the existing slot for the supplied wheeled landing gear.   These slots are used if you intend to use the original wire that comes with the plane and the float kits however many people opt to make their own float struts from streamlined aluminum tubing by crushing the tubing flat where ever it needs to be joined to another piece of tube or to the fuse and drilling for screws to attach the pieces

Another mounting option is to cut light ply into the bottom of your fuse and sand it to match the contours of the body.  You can then use  #4 screws and the nylon LG straps that came with the GWS floats to attach to the fuse rather than using them on the floats themselves. One further option, in consideration of weight, would be to cut holes in the ply before fitting it into the fuse and cover the finished areas in Solarfilm or any of the other foam friendly coverings.

Float Plane Set Up
Below are the basics of float and plane set up thanks to Art Schmitz and Grejen from RC groups latest Canadian Beaver forums:

When fitting your Beaver with floats you need to locate the floats based on the CG (center of gravity) by keeping the step of the float just behind the CG. If the step is too far behind the CG the plane will not be able to rotate (pitch up) and fly off the water.  If the step is too far forward the plane will not be able to rotate from the point of the step.   It will run along simultaneously on the step and the transom of each float. With lots of power and some luck it may still lift off, but at a much slower rate due to the additional drag.  Most floats allow for a 7 to 8 degree rotation angle; therefore if the step is too far aft it won't rotate or lift off but if the step is too far forward it will sit back onto the transoms and won't lift off.   Try for the step being 13mm aft of the CG [battery in place].  To test sit the plane on a flat surface and when you tip the plane back on to the water rudders it should return back to the keel flats when you let go. This should work out with your planes CG at 2"/51mm from the leading edge and with the batteries installed in the stock battery box arrangement (based on tests using an E-Tec 2s 1250HP lipo's and a Park 370 out runner or the GWS 9.6 750 nimh aaa's in the 350c powered plane). All in weights should run around 19 to 20 oz. But with either power system the planes leave the water effortlessly.

Note:  Nothing says that the horizontal stabilizer has to be level when the plane is balanced.

As a general rule of thumb, with a Beaver balanced at about 2 in. from the leading edge of the wing, the float step is approximately 1/2 behind the CG.

How do you steer this thing anyway?
Excellent question!  Some people just use their planes rudder however if you have a cross breeze it can make taxiing back to the hanger a real challenge.  The simplest solution is to add water rudders to facilitate steering on water.  Rsid99 from RC Groups posted some excellent information for steerable water rudders and generously has allowed us to post the information here as well.
Here is the basic  schematic of his steering setup
Bottom view of the floats
View of the front float mount
(note black rods are spreader bars between the 2 floats)
View of the rear float mount
View of the water rudders and linkage
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