Coruña, The Next Stage
Monday, January 19, 2009
Friday, January 16, 2009
Bmx Bike For 50 Dollars
landing in the Hudson
[...]'s expertise lies in a splashdown fly slowly enough to not destroy the plane, and fast enough to avoid stalling and collapse on the water [...]
Many times I reported on this blog that all emergencies are planned, tested and contained in procedures to which every pilot is consistent. However, there are certain situations as depressurized or landing can not be tested until the end. Not like an engine failure in the procedure you do engine off and get to the airport. In other words, any pilot knows what a depressurization until the sufferer.
The same applies to the landing. In the pilot school always advised against the landing but had not any possibility to make an emergency landing on the ground. From the tub, the water may look harmless but at 300 km / h is as hard as concrete, with the particularity that it can not support you. The landing procedure is an extension of the procedure for landing with engine failure, ie the short motor, fly the airplane within the parameters of the plan, declare emergency, cut off all electrical items and take protective measures. Lands on the sea is always parallel to the waves, not against, and with the headwind, as if we were to take in a field. Crosswind If you choose a 45 degree angle between the wind and waves, seeking always to make the maneuver as close to the coast. So here is any procedure.
However, when "wet" where everything changes with respect to a decision on the ground. It is obvious that water offers much greater resistance to advancing the land. In an aircraft there are two parties that generate much resistance if a landing, are the landing gear and engines for aircraft which are under the wings. That is why you should ditch the train withdrawn, because the slightest impact against the water, pull it out, taking with it parts of the wings or destabilizing the plane. With the other it is the same, but they are an insurmountable obstacle when ditch. That's why making the water should be as smooth as possible, flying slowly enough to not destroy the plane, and fast enough to avoid stalling and collapse. And this last is a matter of skill and luck, a lot of luck, 90% of the landing is counted dead, not only from impact with the water, but because those who are lucky enough to survive this, they usually die of hypothermia.
Yesterday, a U.S. Airways A320 emergency had to ditch in the Hudson River with 155 people aboard, after a total loss of power after takeoff. The plane only reached 3,000 feet before beginning his glide to the river, splashed down speed 150 knots (280 Km / h). No passenger was killed thanks to great work of the crew, in a very limited time made a perfect landing and the evacuation of all occupants.
The same applies to the landing. In the pilot school always advised against the landing but had not any possibility to make an emergency landing on the ground. From the tub, the water may look harmless but at 300 km / h is as hard as concrete, with the particularity that it can not support you. The landing procedure is an extension of the procedure for landing with engine failure, ie the short motor, fly the airplane within the parameters of the plan, declare emergency, cut off all electrical items and take protective measures. Lands on the sea is always parallel to the waves, not against, and with the headwind, as if we were to take in a field. Crosswind If you choose a 45 degree angle between the wind and waves, seeking always to make the maneuver as close to the coast. So here is any procedure.
However, when "wet" where everything changes with respect to a decision on the ground. It is obvious that water offers much greater resistance to advancing the land. In an aircraft there are two parties that generate much resistance if a landing, are the landing gear and engines for aircraft which are under the wings. That is why you should ditch the train withdrawn, because the slightest impact against the water, pull it out, taking with it parts of the wings or destabilizing the plane. With the other it is the same, but they are an insurmountable obstacle when ditch. That's why making the water should be as smooth as possible, flying slowly enough to not destroy the plane, and fast enough to avoid stalling and collapse. And this last is a matter of skill and luck, a lot of luck, 90% of the landing is counted dead, not only from impact with the water, but because those who are lucky enough to survive this, they usually die of hypothermia.
Yesterday, a U.S. Airways A320 emergency had to ditch in the Hudson River with 155 people aboard, after a total loss of power after takeoff. The plane only reached 3,000 feet before beginning his glide to the river, splashed down speed 150 knots (280 Km / h). No passenger was killed thanks to great work of the crew, in a very limited time made a perfect landing and the evacuation of all occupants.
Subscribe to:
Posts (Atom)