Thermal Sniffer - RC glider model.
Quote: "This glider was designed to be rugged and efficient so as to be able to compete against other contest gliders in towline. There is no easier way for the beginner to master the fundamental principles of flight than with this simple, easy to build, towline glider. There is no greater test of skill for the expert than slope-soaring or spotlanding this craft. Five-position rudder control is used, because after much experience it was found to give the most practical method of all-around control with a minimum of equipment.
When properly trimmed, the stability of the ship is surprising. The model will not drop its nose into a spiral dive until at least one complete circle in either direction is finished. The model is unique in the fact that two distinct types of flying may be selected. By moving the wing back from the center of gravity about 1 or 2 inches the model becomes very fast and snappy, and many maneuvers may be performed at fairly high speeds. By moving the wing forward from the center of gravity, the craft soars slowly and easily, a performance which is suitable for duration contest work.
Radio-equipped models are acceptable by the Academy for duration competition with nonradio- controlled craft in any of their sanctioned contests. This is not generally known. The advantages of radio-controlled craft in competition with conventional craft becomes obvious with experience.
The body of the glider is extremely simple to construct, being of the strong box type. The conventional method of building the two sides first, one on top of the other, is used. After completing the two sides, place them upside down on a drawing board and glue in all the cross-pieces of equal length.
Next bring the tail end together and finish up the remaining crosspieces. The nose block is then added and the remaining cross-pieces are glued in place. Be sure to allow a space on the front top for the removable radio hatch. The wing dihedral joint fits into the 'V' trough on top of the fuselage.
Sand the body thoroughly, making sure there are no bits of glue or wood protruding. The body is now ready for sheeting. The whole body except for the radio opening in the top front is covered with a soft grade of 1/16 balsa wood with grain running from nose to tail. Apply plenty of glue and work fast. Hold sheeting in place with pins about every half inch..."
Note this is a low resolution plan.
Update 02/05/2018: added clearer copy of the article, thanks to JeffGreen.
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