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originally posted by: TheOneFreeMan
What surprises me most is the fact that this thing lost 28,000 feet in 3 minutes; that's pretty damn steep. We measure the descent rate of aircraft in Feet Per Minute, and average descent rate for an approach is like, 2,000 FPM or 1,800 FPM, 1,500 even, depending on where you're flying or what you're up to. If we just take 28,000 and split it 3 ways you get a descent rate of about 9,300 FPM.
originally posted by: WarminIndy
I have a portable oxygen machine operated by batteries. Next time I fly, I am going to take it with me.
TextGenerally, the Federal Aviation Administration (FAA) prohibits the use of personal oxygen units during flights because they contain compressed gas or liquid oxygen that is defined as hazardous material. However, the FAA has issued guidelines permitting the onboard use of certain portable oxygen concentrators (POCs). POCs, approved by the FAA, may be carried and used on board United flights worldwide at no charge, in accordance with specific FAA guidelines. Note: When connecting to or from any other airline, including codeshare flights other than those operated by United or United Express®, the customer is responsible for notifying and making independent arrangements directly with the other airline. The current FAA authorization enables, but does not require, airlines to accept POCs. Some airlines may not accept them or may require a fee. Please note that not all United Express carriers permit use of oxygen concentrators and/or only accept specific types. Customers wanting to use a POC on board must provide a minimum 48-hour advance notification to United. The disability desk at the United Customer Contact Center (1-800-228-2744) will ensure the device you are planning to use is on the list of current, approved devices and will help provide guidance on the number of batteries you will need for your flight.
originally posted by: Zaphod58
a reply to: WarminIndy
They have two methods to descend in an emergency descent.
Method one, is to push the power up, and the nose down, then pull the power back and level off once they're lower.
Method two is more popular. They lower power, drop flaps, drop the landing gear and push the nose over. Their airspeed stays low, but their decent rate shoots up.
As for the other post, it was a KC-135 tanker used by the Air Force. The navigator was using the sextant to get a navigational fix when a window above him blew out.