A company called Kinetics made an LCAC hovercraft years ago. I still have mine stored in a box after using it for three years both in winter and summer. It has dual lifter fans and dual thrusters. The lifter fans are 540 sized brushed motors and so are the thrusters. The skirt material is made of a very thin & soft nylon fabric that's similar to that of an umbrella. For flotation incase the batteries die out before the LCAC gets ashore a 1" thick styrofoam material was sandwiched in between the lexan/polycarbonate deck and fiber board material that also held the skirt.

You can find running pics of it here in an old thread called : "Pics of your airboat".