A new spin on the perceptions, procedures, and principles of flight.

Information on low speed airfoil testing for model airplanes.

Designed by John Yost, and developed specifically for swept wing tailless aircraft.

Vacuum bagging techniques for foam wings with composite, or wood veneer skins.

Collection of articles from past NSP catalogs.

Doing a layup with and joining the fuselage in the mold.

Pictures and information on making fuselage molds.

Questions and Answers from DJ Aerotech on soaring topics by Joe Hahn and Don Stackhouse.

Knuckle or arrowshaft hinges for gapless hinge lines.

A theoretical study to evaluate the effect of minimum sink rate, span, and aspect ratio on the performance of a family of conventional radio controlled thermal sailplanes.