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Several projects have been planned and undertaken to launch paper planes from the stratosphere or higher. The Guinness World Record for the highest altitude paper plane launch is 35,043 metres (114,970 ft). [1]
The high performance gliders have fuselages ... Bomber-like paper plane called the ... highest altitude paper plane launch, reaching an altitude of 35,043 metres ...
The highest altitude obtained by a paper plane was previously held by the Paper Aircraft Released Into Space (PARIS) project, which was released at an altitude of 27.307 kilometres (89,590 ft), from a helium balloon that was launched approximately 80 kilometres (50 mi) west of Madrid, Spain on October 28, 2010, and recorded by The Register's ...
A team of auxiliary U.S. Air Force volunteers launched the paper aircraft from a weather balloon 96,563 feet (more than 18 miles) in the air. It Paper airplane sets world record while flying 82-miles
On 28 October 2010, an aircraft was successfully launched at 90,000 ft (27,000 m)—17 miles up—setting a then world record for "highest altitude paper plane launch" recognised by Guinness World Records at a location about 120 miles (190 km) west of Madrid, Spain.
Haley also cited other technical considerations for that altitude, as it was approximately the altitude limit for an airbreathing jet engine based on current technology. In the same 1959 paper, Haley also referred to 295,000 feet (55.9 mi; 90 km) as the "von Kármán Line", which was the lowest altitude at which free-radical atomic oxygen occurred.
Pressure altitude is the elevation above a standard datum air-pressure plane (typically, 1013.25 millibars or 29.92" Hg). Pressure altitude is used to indicate "flight level" which is the standard for altitude reporting in the U.S. in Class A airspace (above roughly 18,000 feet).
The highest lift-to-drag ratio is 70:1, though 50:1 is common. After take-off, further altitude can be gained through the skillful exploitation of rising air. Flights of thousands of kilometers at average speeds over 200 km/h have been achieved. One small-scale example of a glider is the paper airplane.