Gadgets

New world speed record for radio-controlled glider is now 882 km per hour (video)


California enthusiast Spencer Lisenby January 192021 set a new world speed record for radio controlled gliders (RC) using wind gusts up to 104 km / h (65 mph) and dynamic flight techniques. The new record was 882 km / h (548 mph) and was recorded on the slopes of Parker Mountain, California. The previous speed record for RC gliders was set in 2018 at 877 km / h (545 mph).

The dynamic flight technique providesobtaining additional energy when crossing the border of air masses moving at different speeds. This technique is used by birds, such as albatrosses, and since the 60s of the last century and by operators of radio-controlled gliders. It is most effective to use dynamic flight around obstacles such as hillsides where the wind is at its fastest. As a result, when properly controlled, RC gliders reach high speeds and can hover for as long as they want.


Hitting the leeward side of the hill, the gliderbegins to lose speed, getting into the turbulence zone, where the wind also slows down. Using a closed loop flight scheme and passing through layers between air masses, the glider picks up speed. Additional energy comes from the use of the difference in air flow rates and ensures the glider is lifted to a great height.

Using this technique, albatrosses flyspending a small amount of energy when using the difference in wind speeds to travel long distances. However, they fly in a semicircle in different directions and do not use cyclic schemes to gain speed, as RC operators do, accelerating their vehicles to gigantic speeds.