Full size printed plans Peanut scale "Maboussin Type 40 Hemiptere" very stable flight pattern

Full size printed plans No material

Maboussin Type 40 Hemiptere

Plans in article are Full Size on a sheet 11” x 17”

Four pages of building notes, photos and plans

Peanut scale

Wingspan 13”

Power rubber

By al Backstrom

Tandem wing ships have almost exclusively been French light planes. Of those designs, I consider the Maboussin Type 40 Hemiptere to be the most attractive. I don't know of any true aerodynamic advantage to the tandem configuration in full-size airplanes, but the models I have built all seem to fly well. To me, that in itself is aerodynamic advantage enough. My Hemiptere is no exception to this, as it has a very stable flight pattern, and early duration flights of about one minute are not uncommon, using amounts of rubber that were only guessed at.

Construction.

The following instructions assume that the builder has a basic know- ledge of stick-and-tissue construction methods. I will cover primarily those techniques that are different from the ordinary, along with hints and tricks I've discovered through the years.

Thank you for looking