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H.A.F. Pilot In The Centrifuge

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Uploaded by on Mar 29, 2008

###Aπό την εκπομπή στο Ελληνικό πιλοτήριο,1990 ΑΝΤ1###
Human tolerances depend on the magnitude of g-force, the length of time it is applied, the direction it acts, the location of application, and the posture of the body.

The human body is flexible and deformable, particularly the softer tissues. A hard slap on the face may impose hundreds of g-s locally but not produce any real damage: a constant 15 g-s for a minute, however, may be deadly. When vibration is experienced, relatively low peak g levels can be severely damaging if they are at the resonant frequency of organs and connective tissues.

To some degree, g-tolerance can be trainable; and there is also considerable variation in innate ability between individuals. Further some illnesses reduce g-tolerance, particularly cardiovascular problems.
Aircraft in particular exert g-force on the axis aligned with the spine. This causes significant variation in blood pressure along the length of the subjects body, which limits the maximum g-forces that can be tolerated.

One often hears the term being applied to the limits that the human body can withstand without losing consciousness, sometimes referred to as "blacking out", or g-loc (loc stands for loss of consciousness). A typical person can handle about 5 g (50m/s²) before this occurs, but through the combination of special g-suits and efforts to strain muscles—both of which act to force blood back into the brain—modern pilots can typically handle 9 g (90 m/s²) sustained (for a period of time) or more. Resistance to "negative" or upward gees, which drive blood to the head, is much less. This limit is typically in the -2 to -3 g (-20 m/s² to -30 m/s²) range. The vision goes red and is also referred to as a red out. This is probably due to capillaries in the eyes swelling or bursting under the increased blood pressure. Humans can survive about 20 to 40 g instantaneously (for a very short period of time). Any exposure to around 100 g or more, even if momentary, is likely to be lethal, although the record is 179 g
G-LOC has resulted in a number of fatalities in which the aircraft and crew are lost. There is a need for high-G training and this can be accomplished in a man-rated centrifuge training system. Such systems are made by AMST Systemtechnik in Austria (Austria Metall SystemTechnik), the Environmental Tectonics Corporation (ETC) and in the USA.
A centrifuge is a piece of equipment, generally driven by a motor, that puts an object in rotation around a fixed axis, applying force perpendicular to the axis. The centrifuge works using the sedimentation principle, where the centripetal acceleration is used to separate substances of greater and lesser density. There are many different kinds of centrifuges, including those for very specialised purposes.
Human Centrifuges are exceptionally large centrifuges that test the reactions and tolerance of pilots and astronauts to acceleration above those experienced in the Earth's gravity.

The US Air Force at Holloman Air Force Base, NM operates a human centrifuge. The centrifuge at Holloman AFB is operated by the aerospace physiology department for the purpose of training and evaluating prospective fighter pilots for high-g flight in Air Force fighter aircraft. It is important to note that the centrifuge at Holloman AFB is unrealistic in that it is far more difficult for a pilot to tolerate the high-g environment in the centrifuge than in a real fighter aircraft. This well-known fact is based on countless accounts from experienced operational fighter pilots.
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The use of large centrifuges to simulate a feeling of gravity has been proposed for future long-duration space missions. Exposure to this simulated gravity would prevent or reduce the bone decalcification and muscle atrophy that affect individuals exposed to long periods of freefall. An example of this can be seen in the film 2001: A Space Odyssey.

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  • an travouse o Mitsotakis 2g,tha lipothimouse to aeroskafos,oxi aytos

  • nai giati i antig de kobei ta g. piezei to aima oste na kanei mikroteri prospatheia i kardia na to steilei stous istous kai na mi limnazei sta podia. i anti-g pou xarizei g einai ayti pou forane sta F16. Dinei 1 g, diladi an trabas 9 einai sa na trabas 8 xoris aytin.

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  • Αφιερωμένο στην κουράδα τον πάγκαλο,που τους απκαλεί αντιπαραγωγικούς.

  • tha goustara na dokimaso ton eafto mou sta akra me tosa G.... na dw mexri pou mporo na ftaso! kai as min gino pote pilotos logo ipsous!

  • Test how to age 20 years in 5 seconds.

  • Yperanthropoi...

  • it's the G-Centrifuge in Netherlands

  • prwton pou to kserete oti foraei thn αντι-g?egw den vlepw sto video na deixnei thn koilia tou!Epishs,ayto pou forane gyrw apo to laimo oi xeiristes einai swsivio kai oxi anti-g!Η αντι-g foyskwnei sthn koilia kai sta mpoutia mono!Se piezei pros ta mesa gia na mhn exeiws υπερβολικη απώλεια αίματος!Εχω φτάσει στα 8.9 G σε F16 αλλα εμεινα εκέι για 1,4 δευτερόλεπτα.

  • it is

  • Looks like this is the G-Centrifuge in the Netherlands.

  • Θα βλέπει ο Θεοδώρος τώρα τον εαυτό του στο βίντεο και θα λέει ποιος ξέρει τι!!!

    Χα χα χα χα !!!!

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