 This lift is often marked by long, stationary lenticular (lens-shaped) clouds lying perpendicular to the wind.A mountain wave was used to set the record for highest altitude by a glider when Steve Fossett and Einar Enevoldson, wearing pressure suits, soared to an altitude of on August 29, 2006 over El Calafate, Argentina in their modified DG-505.The current world distance record of 3,008 km (1,869 statute miles) by Klaus Ohlmann (set on 21 January 2003) was also flown using mountain waves in South America.