This one takes little effort, money, and, most important, requires materials, which are readily available for anyone who wants to build such a thing.
You can build it within an evening if you really want to. I did not have to use drafts. I just listened to my heart, drew the plane, and cut templates. I wrote this post because I wanted to share with you my ideas concerning the hovercraft’s structure, which had passed all tests and proved viable.

Because my airplane was to face the "gravest rigors of indoor RC hobby service", I cut templates from a piece of laminated electrocardboard.
The wing is made from a 5mm thick piece of laminate underlay and ceiling tile.

Now that I have glued the two workpieces together, I apply the template, outline, and cut out the future wing.


Next thing we do is shape the wing. This is what we have halfway down the path:


I used the same template to outline the leading edge.

Next, I cut “lugs” and glued them to the centerwing at a sharp angle. To even them out, I glued one lug, waited until the glue dried, fitted the other one, and did this:

Next thing we do is provide a little reinforcement to prevent the wing from folding during takeoff. Because this is a low-budget hobby-style project, we’re going to use Whatman drawing paper. Glue “spar caps” to the top and bottom of each outer wing panel.

Once the glue dries, the two outer wing panels should be fitted together at a V-angle, and the seam should be lined with a tracing paper strip.

For easy assembly, transportation, and preload-free center-of-gravity adjustment I equip my hovercraft with removable wings. For quick assembly, I glue wooden parts with ciacrine.


The empennage is made from a ceiling tile split into 1mm thick layers. If you do not have a foam-cutter, you’ll have to do a bit of grinding 
Because the tailfin is at the bottom, I could not resist the temptation to reinforce it with carbon filament, and I think it imperative that the junction between the tailfin and the stabilizing fin be lined with tracing paper.

It takes a special kind of glue to hold ceiling foam and carbon together. However, there are ways around it. Wind a piece of cotton thread around the beam and smear it with ciacrine. Now Titan can do the job quite well.


Now the hovercraft is ready except it needs a little load. I made a load from a wine bottle cork and a piece of foam rubber.
That’s pretty much it. All that’s left to do is tie the wing to the fuselage with rubber strips, adjust center of gravity, and take off.


Unfortunately, I could not rent an armory big enough to test-fly it, so let’s make the best stadium of the living room that we have!


Here is one of my evening test-flights.



Good luck and happy hovercraft building!!!

Yours faithfully,
Sokolik.
Это перевод. Оригинал на русском здесь.