Salt water is considered "mildly corrosive" – aka may rust things. Sure, most of the metal in a plane is aluminum (and now carbon composite in the 787 and A350), but not all of it.
Why is salt water of serious concern to aircraft?
If your airplane is exposed to salt air during even one visit, salt crystals will remain inside and cause corrosion. The first stage of corrosion can be seen in a darkening of the metal, for instance, when a polished bare metal airplane sits outside and begins to look dull.
Why do planes avoid oceans?
Since it is preferable to crash land on solid ground, and ideally close to an airport where emergency services are accessible, most airlines prefer to fly over land. Most flights are intended to spend as little time as possible over water, since storms are more common over the ocean than on land.
Why sea water is not a portable water?
80% percent of seawater contains salt, which in turn is terrible for your health if you drink it. This is because when the water passes through your digestion system, there are little nutrients that can be extracted, and the small amount of water there is would be dried out.
Why is sea water not allowed on a plane?
Why don t planes cross the Atlantic ocean?
Early aircraft engines did not have the reliability nor the power to lift the required fuel to make a transatlantic flight. There were difficulties navigating over the featureless expanse of water for thousands of miles, and the weather, especially in the North Atlantic, is unpredictable.
What is the 3oz rule?
You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.
Can you drink ocean water if you boil it?
No. Boiling seawater does not make it safe to drink because it doesn't remove the salt. Freshwater on the other hand – say from a river – can be boiled to make it safe enough to drink.
Can ocean water be made drinkable?
But what if we could make seawater safer to drink? It turns out that we can and the process is called desalination. Desalination is a process that removes dissolved minerals (including but not limited to salt) from seawater, brackish water, or treated wastewater.