bob reeve used to operate straight skis off the mud flats in valdez........
but i don't think its going to work out as well as you might imagine.
ever taxi across a bare gravel or grass spot while on skis? even "skicky" snow will stop you in your tracks.
what type of cub sized aircraft? for an -18 you are looking for some AWB 2100's for hydraulic skis. or check out aero ski's R2800 model. it is ground retractable. ie. you can lower the skis on the ground with a handle- take off from your glacier- and then release a lever in the cockpit that lets the skis spring up and you can land on pavement with wheels penetrating thru. they are a more affordable option. i know several people running them on everything from citabrias to pacers to maules and they all like them.
i run a fixed wheel penetration ski (schneider 4000) on my maule. they take a lot of power when on the snow, especially at higher altittudes like the glaciers around here. but they DO work. and they allow me to land on glaciers when it is 80 degrees down here at sea level. what could be better on a hot summer day
i have a couple wheel ski pics in my gallery.