equivalent altitude

equivalent altitude

An altitude that would supply the same amount of oxygen to the respiratory system as that provided in the pressurized cabin, through an oxygen mask, or the like. See also cabin attitude.
References in periodicals archive ?
The first aviators used the trainer during a test event July 25, and the device successfully produced an environment equivalent altitude to 25,000 feet, providing the conditions necessary to get all 10 students onboard hypoxic.
And if that wasn't enough, the cabin is pressured to a lower equivalent altitude, which, according toQatar Airways, means you can breathe in more oxygen than in any other aircraft.
The comparison of DIC-ANN and PID control method is performed in the following description: first, each controller is using the twin model, second, for PID, the controlling force and torsion converted to obtain PWM values, third, the numerical simulation was executed simultaneously, and fourth, both controllers were excited with equivalent altitude profile as their reference and the responses plotted in joint graphs.
The cabin is pressured to a lower equivalent altitude, which, according to Qatar Airways, means you can breathe in more oxygen than in any other aircraft, resulting in less travel fatigue and dizziness and fewer headaches.
Expressing the effects of reduced air density as an equivalent altitude is just an arcane aviation-centric way of discussing the physics so pilots can relate to it better.
I have climbed the equivalent altitude of Mount Everest five times without much rest.
Summarized the knowledge about the influence of intermittent hypoxia and here especially the optimal "profile" of equivalent altitude, duration of exposure, the number of exposures and the pause between them on acclimatization AMS, and other factors is not yet clear.
The Ideal Cabin Environment (ICE) project concluded that although there was "evidence of combined effects of environmental parameters on subject health and comfort", there was "no consistent evidence of improvement to health and comfort from a decrease in the cabin equivalent altitude".
These enclosures create a normobaric environment with an equivalent altitude up to 30,000 feet, while completely removing the risks associated with a hypobaric environment such as sinus injuries and decompression sickness.
New aircraft utilize high-tech, carbon-fiber composite material in place of metals that allow cabin pressure to be set at an equivalent altitude as low as 2000 feet versus 8000 feet today.
Most commercial airline antennas operate pressurized with cabin air at typically 5000 feet equivalent altitude. Figure 10 shows the increased high power with low altitude.