When flying a catapult glider, it is useful to know how to increase the sink rate of your glider, so that it will fly for a longer period of time. In this article, Kurt Krempetz of AMA Glider discusses various theories regarding the launching heights and sink rates of catapult gliders.

Washout is usually thought of as twisting, shaping/sanding or adding an up tab to the trailing edge of the tips of a wing, so wing tips are at a negative angle of attack, compared to the root of the wing. Kurt Krempetz of AMA Glider describes the two methods that are typically used in glider designs to add washout to a wing.

Although indoor glider events are simple, they are sometimes hard to master. Weight, strength, and aerodynamics are three issues that are very important when flying an indoor glider. Kurt Krempetz for AMA Glider will discuss these issues in this article.

Learning how to launch handles for catapult gliders is essential when flying a glider. Kurt Krempetz of AMA Glider discusses the AMA rules for launching handles for catapult gliders in both indoor and outdoor events are discussed.

Kurt Krempetz of AMA Glider explains why it is important to trim a glider, so that it will be able to make turns while flying, rather than just flying straight. He also discusses the various forces of a glider, such as the lift force and gravity, and the pitch axis.

Sandpaper is a material that is almost always used when building a glider. The process of using sandpaper to remove material is called sanding. In this article, Kurt Krempetz of AMA Glider explains techniques for sanding a glider.

MAKE Magazine and AMA youth member Lucas Weakley have teamed up to bring you Maker Hangar, a 15-episode tutorial series that will teach you everything you need to know to build and fly this custom RC plane, the Maker Trainer.

Instructions for creating the type of indoor catapult-launch glider needed for Science Olympiad. Also includes a material list and a video!

The Sky Streak is a balsa motorplane that can be easily assembled by just about anyone and can be flown either indoors or outside. Although the stock Sky Streak flies well, there are some special modifications you can make to really enhance flight performance.

Have you ever gotten a hole in one of the wings of your model aircraft? In this article, we will demonstrate a few easy steps to help you patch the hole in your wing successfully.

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