inżynieria: Cabin pressurization

Evidence: 100 • authority: 72

Cabin pressurization is a process in which conditioned air is pumped into the cabin of an aircraft or spacecraft in order to create a safe and comfortable environment for humans flying at high altitudes. For aircraft, this air is usually bled off from the gas turbine engines at the compressor stage, and for spacecraft, it is carried in high-pressure, often cryogenic, tanks. The air is cooled, humidified, and mixed with recirculated air by one or more environmental control systems before it is distributed to the cabin. The first experimental pressurization systems saw use during the 1920s and 1930s. In the 1940s, the first commercial aircraft with a pressurized cabin entered service. The pra…

Evidence: 39 • authority: 72

A supersonic transport (SST) or a supersonic airliner is a civilian supersonic aircraft designed to transport passengers at speeds greater than the speed of sound in terms of air speed. To date, the only SSTs to see regular service have been Concorde and the Tupolev Tu-144, although the Boom Technology Overture SST may succeed in starting service around 2029, which would make it the third operational SST. The last passenger flight of the Tu-144 was in June 1978 and it was last flown in 1999 by NASA. Concorde's last commercial flight was in October 2003, with a November 26, 2003, ferry flight being its last flight. Following the termination of flying by Concorde, there have been no SSTs in c…

Evidence: 26 • authority: 80

Neurologic Decompression Sickness Following Cabin Pressure Fluctuations at High Altitude

Evidence: 24 • authority: 72

The McDonnell Douglas DC-10 is an American trijet wide-body aircraft manufactured by McDonnell Douglas. The DC-10 was intended to succeed the DC-8 for long-range flights. It first flew on August 29, 1970; it was introduced on August 5, 1971, by American Airlines. The trijet has two turbofans on underwing pylons and a third one at the base of the vertical stabilizer. The twin-aisle layout has a typical seating for 270 in two classes. The initial DC-10-10 had a 3,500-nautical-mile [nmi] (6,500 km; 4,000 mi) range for transcontinental flights. The DC-10-15 had more powerful engines for hot and high airports. The DC-10-30 and –40 models (with a third main landing gear leg to support higher weig…

Evidence: 20 • authority: 88

Rubber Silicone, High Strength, Cabin Pressure Seal Material, Diaphragm Type. <div class="section abstract"> <div class="htmlview paragraph">This specification covers 45 durometer hardness, high strength silicone rubber.</div></div>

Evidence: 20 • authority: 80

People with High Blood Pressure Climbing to Altitude

Evidence: 20 • authority: 80

Off-the-shelf altitude and cabin pressure alerter

Evidence: 20 • authority: 72

The de Havilland DH.106 Comet is a four-engine narrow body aircraft developed and manufactured by de Havilland in the United Kingdom. The world's first commercial jet airliner, the Comet 1 prototype first flew in 1949. It features an aerodynamically clean design with four de Havilland Ghost turbojet engines located in the wing roots, a pressurised cabin, and large windows. For the era, it offered a relatively quiet, comfortable passenger cabin and was commercially promising at its debut in 1952. Within a year of the airliner's entry into service, three Comets were lost in highly publicised accidents after suffering catastrophic mishaps mid-flight. Two of these were found to be caused by str…

Evidence: 20 • authority: 88

Rubber Silicone, High Strength, Cabin Pressure Seal Material, Diaphragm Type. <div class="section abstract"> <div class="htmlview paragraph">This specification covers 45 durometer hardness, high strength silicone rubber.</div></div>