- #1
Count Iblis
- 1,863
- 8
Roughly estimate the maximum deceleration of the aircraft parts.
Danger said:Alright, I admit that I had forgotten the title of the thread when I first responded, and you didn't mention the type of aircraft in the post, so I took the broad-spectrum approach.
You do realize, however, that not all 747's use the same engines... right? You also did not specify whether the gear was up or down, what flap angle, leading-edge flap angle, aileron deflection, elevator deflection, and spoiler deployment were in place, nor the weight of the bird at impact. How many passengers of how much weight and weight distribution? How much cargo to the nearest tonne or so? Fuel tanks full, empty, or somewhere in between? Is your 900 kph airspeed or groundspeed? How high are the waves and how fast are they moving? Why specify the Atlantic Ocean as opposed to any other body of water when you didn't even mention what model/year of 747 it is?
Tell me again that it wasn't badly worded.
Count Iblis said:It is not a homework problem and it is not badly worded at all. Also, The problem is pretty much well defined, because we can all look up the properties of a 747 and we know what water is.
This sort of problem is like what you kind find in the book "Problems in Physics" by the famous physicist P.L. Kapitza. E.g. try solving this problem which is taken literally from his book:
"A stone falls into the water and water drops are splashed. Why do the water drops fly upwards? Does the maximal height reached by the drops depend (primarily) on the size of the stone or on its speed? What is the maximal height?"
Count Iblis said:It is not a homework problem and it is not badly worded at all. Also, The problem is pretty much well defined, because we can all look up the properties of a 747 and we know what water is.
This sort of problem is like what you kind find in the book "Problems in Physics" by the famous physicist P.L. Kapitza. E.g. try solving this problem which is taken literally from his book:
"A stone falls into the water and water drops are splashed. Why do the water drops fly upwards? Does the maximal height reached by the drops depend (primarily) on the size of the stone or on its speed? What is the maximal height?"
There could be several factors that could have caused the nose dive, such as mechanical failure, pilot error, or external factors like weather conditions or bird strikes. A thorough investigation would need to be conducted to determine the exact cause.
It is highly unlikely that a 747 could survive such a high-speed impact into the ocean. The force of the impact would most likely cause the plane to break apart and sink to the bottom of the ocean.
The descent rate of a 747 is approximately 9,000 feet per minute, so it would take around 6-7 minutes for the plane to reach the ocean floor, assuming it does not break apart during the descent.
Yes, there are various safety measures in place to prevent a 747 from nose diving, such as regular maintenance and inspections of the plane, pilot training and procedures for emergency situations, and air traffic control monitoring. However, accidents can still occur due to unforeseen circumstances.
Survival rates for a nose dive into the ocean in a 747 would be very low, as the impact and force of the crash would most likely be fatal. However, there have been rare cases where some passengers have survived such an event due to various factors such as seat location, impact position, and luck.