ABCs of the rolling circle: Taking it one step at a time

Article Abstract:

Several tips to perform a four-turn rolling circle of continuous 360-degree turn with specific number of rolls are presented. In order to perform a four-turn rolling circle one must execute four rolls while maintaining a constant heading change, and every roll must be completed at every 90-degree quadrant of the circle.

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The ABCs of Humpty Bumps: From simple to complex

Article Abstract:

A bump is a fun turnaround maneuver of an airplane, or it can be a neat center-stage maneuver for show and it can also be used as a wind-correction maneuver during competitions. Guidelines are provided on how to get started with simple and complex Humpty Bumps.

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Gas or glow: which engine is right for you?

Article Abstract:

The advantages and disadvantages of gasoline and glow engines for powering model aircraft are discussed. Glow engines are generally simpler and more powerful, but they use a lot of fuel so a gas engine might be better for a bigger plane.

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