Related Posts with Thumbnails

Syma S107G 3 Channel RC Radio Remote Control

The new Syma S107 is a three channel mini indoor co-axial helicopter. This model comes equipped with a high grade metal body frame and a built in Gyroscope which is used to stabilize the helicopter's heading.

White Wings AG Trainer Rubber Band Powered Plane

This rubber band powered replica of an SF.260 trainer plane requires no glue or tools and can be assembled in just about 5 minutes. It measures about 17 inches long and has a 19 inch wingspan.

BLADE mQX RTF Quadcopter

It's sleek. It is high-tech. It is an RC flying experience unlike any other. It is the fascinating Blade mQX; the world's first quad-copter equipped with the advanced AS3X (Artificial Stabilization in three Axis) System.

Basics of R/C Model Aircraft Design

A comprehensive guide to designing radio control model airplanes. Andy Lennon presents a thorough and comprehensive introduction to the intriguing world of model aerodynamics. Whatever your modeling background, this book will be a valuable reference source in your R/C library and will never be outdated.

BLACK Wolf Super Model OX-Wolf R/c Helicopter

Mini Remote Control 3 Channel 2009 Black Ox-Wolf Super Model R/C Helicopter by Team RC- Amazing Flight control and speed! This is the Latest 2008/9 Black Wolf Super model R/C Helicopter. Flies stably and silently indoors and outdoors alike.

Showing posts with label Free Flight. Show all posts
Showing posts with label Free Flight. Show all posts

Saturday, April 10, 2010

Free flight (model aircraft)

The essence of free-flight is that the aircraft have no need for any form of external control, for instance by radio. Aircraft of this type have been flown for over two centuries. They are designed to be inherently stable in flight; if disturbed by a gust of wind or a thermal up-current they will return automatically to stable flight. For this reason most free flight aircraft are not replicas of man-carrying ones, for they are designed for a quite different purpose. Their stability is achieved by a combination of design and trim, - the relationship between centre of gravity, wing and tailplane incidence and rudder setting.
Because they are much lighter with respect to their wing area, free-flight aircraft fly much slower than the engine-powered radio-controlled models that many people first think of when ‘model aircraft’ is mentioned. Most of them glide at little more than walking pace and few weigh more than 500 grams.
Usually the sole object in free-flight is flight duration, and one of the sport’s fascinations and challenges is to design the most efficient aircraft within the various competition limits on such parameters as minimum weight, maximum wing area and motive power. It is solely a stopwatch, rather than any judge’s opinion, that decides the result.

Share

Twitter Delicious Facebook Digg Stumbleupon Favorites More