This Dallas Fort Worth air traffic controller well deserved her NATCA award two years ago. Had she not responded quickly, the pilot would have passed out on board his Piaggio P180 Avanti (registration N501PM, callsign shortened into N1PM) and could even have passed away. Another pilot was alerted by slurring in the pilot’s speech. Video:
According to the CBS news video report below, F-22 pilots would have stopped flying 5th-generation F-22 Raptor for they would have reported HH (Health Hazards) incidents onboard the most advanced fighter aircraft in the U.S. Air Force, and the most expensive ever.
« The F-22 has been plagued by a mysterious flaw that causes its pilots to become disoriented while at the controls, from a lack of oxygen. »
Thanks to this interview, we now know that a pilot would have touched a tree while flying an F-22 as he may have been suffering from hypoxia (oxygen deficiency in body tissue). Some other pilots reported dizziness, vertigo, and coughing spell.
« The Air Force launched an investigation that focused on the plane’s On-Board Oxygen Generating System, or OBOGS which takes air from outside the jet, passes through the engine, and through a chemical process to produce a concentrated oxygen that the pilot breathes – Watch the video:
Felix Baumgartner, an Austrian skydiver, performed a challenging test jump on Thursday March 15, 2012.
Felix Baumgartner has the right stuff. He is a well known BASE jumper. B.A.S.E. means Buildings; Aerials; Spans (jumps from bridges); and Earth (jumps from cliffs). He performed numerous stunts such as jumping from the Petronas Towers in Kuala Lumpur, the statue of Christ the Redeemer in Rio de Janeiro, World Financial Center T101 in Taipei, and the Millau viaduct.
Yesterday’s jump test is just a stage in his attempt to break a new free-fall record. He jumped above Roswell, New Mexico at an altitude of 71,581 feet ie 21.8 kilometers; 13.6 miles; or Flight Level 716. He should then carry out another jump test before leaping again from a capsule lifted by a helium balloon at around 120,000 ft ie 23 miles or 37 km this year, and could become the first man to break the sound barrier while free falling.
This is not a simple leap in the sky. People may not understand how dangerous skydiving at such heights is. The air density is so low that it cannot brake movements as drag becomes poorer up there.
Therefore, a position mistake can make the human body tumble violently or spin very fast. High rotation speeds involve high-G forces due to the centrifugal force, and may lead to G-LOC (G-force induced Loss Of Consciousness), and even to the rupture of blood vessels.
Moreover, if a spacesuit were to leak (due to a dormant seal failure or a cracked/crazed faceplate, for instance), the blood could be boiling (ebullism at 37°C above 63,000 ft or 19 km) because of the very low air pressure, and the body could be swelling, and actually freezing to death as the external temperature can reach down to -70°C, and even lower, not to mention the risk of pulmonary barotrauma.
The current record is held by Joseph Kittinger (a former USAF pilot who is curently advising Felix Baumgartner on his project) who jumped from 102,800 feet in 1960. He temporarily lost the use of his hand which got twice as big as a glove seal was leaking during the final part of the ascent. With this test jump, Felix Baumgartner already belongs to the highest three skydivers along with Joe Kittinger, and Russian Eugene Andreev who performed the longest parachute jump from 83,523 feet (25.5 km).
The following video shows that this feat is not only a matter of pushing limits as researchers are working on this Red Bull Stratos project to prepare flight safety of the future spacecraft:
The Swedish-made Saab 35 Draken was a second generation jet fighter. 644 of them were built. This fighter aircraft used to fly during the Cold War as early as 1955, and entered in service in 1960.
Maybe her particular double-delta shape was worth calling it « Draken » which means « kite ». She was more an air defense aircraft than a dogfighter aircraft.
She retired from the RDAF, the Royal Danish Air Force in 1993; from the SwAF, the Swedish Air Force in 1999; from the FIAF, the Finnish Air Force in 2000; and from the AAF, the Austrian Air Force in 2005.
Hereafter an interesting video featuring a Saab 29 Tunnan (Flying Barrel); a Saab 32 Lansen (Lance); and a Draken momentarily as an interceptor; with her rate of climb nearing 35,000ft/min, she could reach FL650 – more than 20 kilometres above the earth – to hit her target:
Cours ANGLAIS Aéro OACI FCL .055 PLS Otan
COURS D’ANGLAIS DE L’AVIATION – Niveaux OACI, Préparation aux PLS de la Certification Otan – Examens Oraux Blancs: PLS 4444, PLS 3333, PLS 2222fclanglais.fr
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