Are control lines measured from eyelet to eyelet, or from center of pilot to center of airplane. I have always used lines at 50 or 60 feet. It would make a difference in determining lap time and speed. Richard L.
Lap time is lap time.
Speed is determined by lap time and the length of the lines measured from the "center of the circle" to the centerline of the model, assuming the "center of the circle" is fixed.
Different competition events have different line length parameters. However, when a line length is specified, like a maximum line length allowed for each of the speed events, or a plus/minus allowance line length for the racing, carrier, and combat events, or a minimum and maximum line length allowed for the scale and stunt events, the length is generally specified in the rulebook as measured from the center of the handle to the centerline of the model.
However, stunt fliers often refer to their line lengths as measured from eyelet to eyelet as long as the 70 foot maximum allowed from center of the handle to centerline of the model is not exceeded for competition. Some find it convenient to mark/store sets of lines measured eyelet to eyelet in their process of changing line length during the trimming their model for better performance. Fort stunt models, determining/measuring the speed is not as important as getting the model trimmed for desired performance and line length adjustments is an important part of the trimming process.
Keith
Topic: Control line length (Read 1154 times)