Would some one please explain to me why U.S. Air flight that landed in the Hudson river didn't sink right away? It just seems impossible that it would stay a float long enough for every one to get out.
Why don't all boats sink? Why don't huge battleships, aircraft carriers, tankers laden with oil sink? Answer: Archimedes' principle
Water is very heavy, and the water displaced by the aircraft is heavier that the aircraft itself. In other words, there was air still air inside the aircraft that lifted it like a bubble. Water was leaking in, but not fast enough to prevent the passengers from escaping.
Also, remember that all doors and hatches are air tight...they have to be for cabin pressure at high altitudes. If no one opened any doors EXCEPT those hich had to be opened to get people out, then the plane was airtight...like a ship or boat.o
Tell us....what kind of training do they give pilots for crash landing into water? Did he do it according to what training they give? What are the basic instructions that he would have had to follow in order to do what he did? I am very curious as this event seems so unbelievable to me!
No specific training is given for such a situation such as a water landing but the principle is the same as a gear up landing on "tierra firma". Try to fly the airplane as slow as possible above stall speed just prior to contact with the landing surface. The incredible part about this to me is that with a double engine failure they would have lost both engine driven generators and been operating for those few minutes on back up battery power only. This situation would have lost all hydraulics and reverted to manual reversion which is trained and taught on a regular basis.
4 comments:
Why don't all boats sink?
Why don't huge battleships, aircraft carriers, tankers laden with oil sink?
Answer: Archimedes' principle
Water is very heavy, and the water displaced by the aircraft is heavier that the aircraft itself. In other words, there was air still air inside the aircraft that lifted it like a bubble. Water was leaking in, but not fast enough to prevent the passengers from escaping.
Also, remember that all doors and hatches are air tight...they have to be for cabin pressure at high altitudes. If no one opened any doors EXCEPT those hich had to be opened to get people out, then the plane was airtight...like a ship or boat.o
So Brian,
Tell us....what kind of training do they give pilots for crash landing into water? Did he do it according to what training they give? What are the basic instructions that he would have had to follow in order to do what he did? I am very curious as this event seems so unbelievable to me!
No specific training is given for such a situation such as a water landing but the principle is the same as a gear up landing on "tierra firma". Try to fly the airplane as slow as possible above stall speed just prior to contact with the landing surface. The incredible part about this to me is that with a double engine failure they would have lost both engine driven generators and been operating for those few minutes on back up battery power only. This situation would have lost all hydraulics and reverted to manual reversion which is trained and taught on a regular basis.
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