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A PC-21 landing at RAF Fairford, England, 2010. In the Armament Program 2006, the Swiss Parliament approved an initial purchase of the PC-21 for the Swiss Air Force.By April 2008, four PC-21 have been accepted by the Swiss Air Force following the passing of acceptance trials, and flight operations were set to start in July that year. [19]
HRTF filtering effect. A head-related transfer function (HRTF) is a response that characterizes how an ear receives a sound from a point in space. As sound strikes the listener, the size and shape of the head, ears, ear canal, density of the head, size and shape of nasal and oral cavities, all transform the sound and affect how it is perceived, boosting some frequencies and attenuating others.
The three Hybrid III child dummies represent a ten-year-old, 21 kg (46 lb) six-year-old, and a 15 kg (33 lb) three-year-old. The child models are very recent additions to the crash test dummy family; because so little hard data are available on the effects of accidents on children and such data are very difficult to obtain, these models are ...
Behnke refers to early work by Momsen on "partial pressure vacancy" (PPV) [20] where he used partial pressures of O2 and He as high as 2-3 ATA to create a maximal PPV. [21] Behnke then goes on to describe "isobaric inert gas transport" or "inherent unsaturation" as termed by LeMessurier and Hills, [ 22 ] and separately by Hills, [ 23 ] [ 24 ...
Prasanta Chandra Mahalanobis OBE, FNA, [5] FASc, [6] FRS [2] (29 June 1893 – 28 June 1972) was an Indian scientist and statistician. He is best remembered for the Mahalanobis distance, a statistical measure, and for being one of the members of the first Planning Commission of free India.
Height measurement using a stadiometer. Human height or stature is the distance from the bottom of the feet to the top of the head in a human body, standing erect.It is measured using a stadiometer, [1] in centimetres when using the metric system or SI system, [2] [3] or feet and inches when using United States customary units or the imperial system.
The Pilatus PC-9 is a single-engine, low-wing tandem-seat turboprop training aircraft designed and manufactured by Pilatus Aircraft of Switzerland.. Developed as a more powerful evolution of the preceding Pilatus PC-7, the PC-9 features an enlarged cockpit and a ventral airbrake while possessing only a low level of structural commonality with its predecessor.
The Chinese were impressed by the CW-21's performance, and negotiation started on a Chinese purchase. While these negotiations were ongoing, the CW-21 prototype was flown in combat against Japanese bombers attacking Chongqing, with Curtiss test pilot Bob Fausel claiming a Fiat BR.20 bomber shot down on 4 April 1939.