See the page dedicated to float flying and setup
Dubro has a nice set of Skis that can easily be added
to your Beaver to fly in snowy conditions. The Skis
mount easily to the stock landing gear with locking collars
The landing gear that comes with the Beaver is slightly on the light side and does not easily allow for the fitting of larger foam wheels. An excellent place to start is to bend new landing gear from heavier wire before installing them on the plane. Keep the GWS gear as a template. This is also a good time to consider after market wheels for a more prototypical appearance. NOTE: most replacement wheels will require longer axles so be sure to allow for this extra length when bending your new gear.
Even the heavier wire can spread and tear your fuse in hard landings either by tearing out the sides or by stretching the foam front to rear. There are a number of solutions to this problem as outlined below:
The most common modification is to cut a piece of balsa as a filler to go in the slot between the gear and then wrap the gear in tape as per the diagram below. Many people just slide the gear in with a friction fit while others glue this assembly in with epoxy
As a secondary reinforcement you can use a length of fishing line and tie it between the gear legs at the axles to help keep the gear from splaying out in a hard landing.
My modification of choice for the landing gear is to build a "lite ply" sleeve that fits up into the fuse with a plywood bottom plate as shown in the image below. I cut the foam on the bottom of the fuse out to allow the plywood bottom plate to sit flush in the bottom of the fuse with some sanding. Simply cut the ply to size, glue together with some carpenters glue, open up the slot in the fuse and push it in with plenty of Elmer's or the adhesive of your choice. So far this mod has proven bullet proof on my Beaver even with multiple hard landings (please ignore the pre-reinforcement ugliness on the bottom of my fuselage
Landing Gear Fairings:
GWS provides foam to tape to the wire gear to represent fairings. It is a good idea to adhere the "fairings" to the wire landing gear only and leave a small gap at the fuse, as the fairings tend to crumple into the fuse on hard landings. Another good idea is to center the foam fairing on the wire rather than locating it aft of the wire as this allows some movement to both the front and the rear without damage. Many people have formed their own 3d fairings by sanding blocks of foam insulation or depron to shape and then painting it to match their plane.
The Wheels provided with the Beaver are definitely less than prototypical. Most builders opt for foam wheels that appear more realistic. Dubro and many other companies offer foam wheels in various sizes, which would be suitable depending on your tastes. Most are using wheels between 1-1/4" and 2" in diameter. The author's preference is a 2" wheel for both appearance and performance