![Industrialist Vijaypat Singhania's hot air balloon takes off in Mumbai November 26, 2005. Singhania took off in his hot air balloon capsule in an effort to reach a height of 70,000 feet ( Industrialist Vijaypat Singhania's hot air balloon takes off in Mumbai November 26, 2005. Singhania took off in his hot air balloon capsule in an effort to reach a height of 70,000 feet (](https://c8.alamy.com/comp/2D5GDD6/industrialist-vijaypat-singhanias-hot-air-balloon-takes-off-in-mumbai-november-26-2005-singhania-took-off-in-his-hot-air-balloon-capsule-in-an-effort-to-reach-a-height-of-70000-feet-above-21336-meters-above-sea-level-on-saturday-part-of-an-attempt-to-break-the-existing-world-record-set-for-high-altitude-in-hot-air-balloon-the-current-record-is-held-by-per-lindstrand-who-reached-a-height-of-64997-feet-19811-meters-in-plano-texas-on-june-6-1988-reuterspunit-paranjpe-2D5GDD6.jpg)
Industrialist Vijaypat Singhania's hot air balloon takes off in Mumbai November 26, 2005. Singhania took off in his hot air balloon capsule in an effort to reach a height of 70,000 feet (
Why are flight levels measured in feet rather than meters, when basically only the US uses feet? - Quora
![Realtime Global Data Intelligence Platform on Twitter: "🇺🇸 ✈ #USAF United States Air Force, Lockheed U-2S (80-1092, AE0966), previously flown by the Central Intelligence Agency (CIA). It provides day and night, high-altitude ( Realtime Global Data Intelligence Platform on Twitter: "🇺🇸 ✈ #USAF United States Air Force, Lockheed U-2S (80-1092, AE0966), previously flown by the Central Intelligence Agency (CIA). It provides day and night, high-altitude (](https://pbs.twimg.com/media/EoNiyhVXcAEdL3T.jpg)
Realtime Global Data Intelligence Platform on Twitter: "🇺🇸 ✈ #USAF United States Air Force, Lockheed U-2S (80-1092, AE0966), previously flown by the Central Intelligence Agency (CIA). It provides day and night, high-altitude (
![The Lockheed U-2, nicknamed 'Dragon Lady', is a single-engine, very high-altitude reconnaissance aircraft operated by the United States Air Force (USAF) and previously flown by the Central Intelligence Agency (CIA). It provides The Lockheed U-2, nicknamed 'Dragon Lady', is a single-engine, very high-altitude reconnaissance aircraft operated by the United States Air Force (USAF) and previously flown by the Central Intelligence Agency (CIA). It provides](https://c8.alamy.com/comp/2B01R0F/the-lockheed-u-2-nicknamed-dragon-lady-is-a-single-engine-very-high-altitude-reconnaissance-aircraft-operated-by-the-united-states-air-force-usaf-and-previously-flown-by-the-central-intelligence-agency-cia-it-provides-day-and-night-very-high-altitude-70000-feet-21000-meters-all-weather-intelligence-gathering-the-aircraft-is-also-used-for-electronic-sensor-research-and-development-satellite-calibration-and-satellite-data-validation-2B01R0F.jpg)