Gyrocopters fly over Dubai during the World Air Games 2015, United Arab Emirates December 9, 2015. REUTERS/Karim Sahib/Pool 

Visitors inspect gyroplanes from AutoGyro at the Abu Dhabi Air Expo February 25, 2014. REUTERS/Stringer (UNITED ARAB EMIRATES - Tags: BUSINESS TRANSPORT SOCIETY) 

A gyrocopter flies over the western German city of Duisburg to get a view of the 60 km (38 miles) long A40/B1 motorway between the western German cities of Dortmund and Duisburg, which has been turned into the "Still-Leben A40/B1" (Still-Life A40/B1) as part of an event for the European Capital of Culture RUHR 2010, July 18, 2010. One of Germany's main motorways came to a total standstill for six hours on Sunday to become the world's longest banquet table, with some 20,000 tables spread over two lanes of the highway. The opposite lanes were reserved for riding with anything that has wheels but no engine. REUTERS/Wolfgang Rattay (GERMANY - Tags: ODDLY ENTERTAINMENT) 

German police test fly a gyrocopter 'MT-03' near Schoenhagen airfield, south of Berlin August 20, 2007. The gyrocopter, which will be used by police for traffic control and searches, is less expensive than a conventional helicopter. REUTERS/Hannibal Hanschke (GERMANY) 

German police test fly a gyrocopter 'MT-03' at Schoenhagen airfield, south of Berlin August 20, 2007. The gyrocopter, which will be used by police for traffic control and searches, is less expensive than a conventional helicopter. REUTERS/Hannibal Hanschke (GERMANY) 

A journalist (front) is flown alongside a German police gyrocopter 'MT-03' during a test flight near Schoenhagen airfield, south of Berlin August 20, 2007. The gyrocopter, which will be used by police for traffic control and searches, is less expensive than a conventional helicopter. REUTERS/Hannibal Hanschke (GERMANY)