An airplane engine will not work under water. Jet, piston, it doesn’t matter. The entire design is based around use in air and it has no way of producing power without air. However, if you look at the engines that are usually called “jets” nowadays you’ll find they are most often “turbofans”.
Can jets work underwater?
Yes you could! IF it had engines built for underwater use, a plane could technically fly underwater. Since air is a fluid, just like water, a plane could produce lift underwater as well, by using Bernoulli’s principle. This would work for propellers as well.
Why do jet engines not work on water?
The high temperature in the engine’s combustion chamber quickly evaporates this level of water into steam that has little influence on the engine’s power output.
What happens when water gets into a jet engine?
If the weather gets really bad, and the rain is very heavy, it is possible that the engine can flame out (too much water stops the fuel from igniting), but when the pilots (or in some cases, the engine’s computer) feel that is possible, they can turn on igniters that continually light the fuel, so even if it does flame …
At what altitude do jet engines stop working?
Fanjet engines stop working at about 50,000 ft. Turbojet engines such as the Olympus in Concorde can reach 60,000ft. The SR71 flew to over 70,000ft but that was a hybrid ram jet and was operating at ‘coffin corner’ where even a small change in operation could cause flame out.
Are water jets better than propellers?
Above 30 knots, waterjets offered a better option to open water propellers. Below 20 knots, propellers were the clear winner. The range of 20 – 30 knots remained uncertain. Propellers have a few tricks to remain competitive in this range, and waterjet efficiency hinges on selecting the right model.
Do wings work underwater?
According to the physics of aerodynamics, air is not “special,” and underwater wings are just like normal aircraft wings. … So, if a theory of flight relies on the significant compressibilty of air, then that theory is wrong, since wings work just fine when flying under water.
Can rain put out a jet engine?
Although rain is capable of hindering the function of a jet engine, it is rarely a noticeable effect. The majority of storms do not create enough rain or snow to disturb the engines, and the ice crystals that clouds are made of are far too small to affect function.
How much rain can a jet engine take?
Czysc says that once rainfall exceeds about two inches per hour, it can douse the engines and halt their firing. “A turbo jet engine swallows about 200 pounds of air per second,” says Czysc. “If more than 10 percent of that is water then it can extinguish the combustion chamber.”
Can planes fly in torrential rain?
Flying in Heavy Rain
Rain doesn’t usually affect a flight much. … Heavy rain could affect visibility, but planes generally fly on instruments anyway, so this will not be an issue in itself.
Does water injection increase horsepower?
Naturally aspirated/high compression engines: Water/Methanol injection allows the use of pump fuel in all but the most extreme situations which effects tremendous cost savings as well as horsepower increases due to air density increase and higher timing advance potential.
How do jets fly in rain?
The wings and engines of today’s aircraft work together to produce “lift,” which moves the plane upward off the ground by changing the direction and pressure of the air. In general, rain does not impede this process—in the majority of cases, the answer to whether planes can fly in the rain in a resounding “yes.”
What happens if you stand in front of a jet engine?
If you’re standing somewhere near an active jet engine, you’re not going to survive. … These titanium blades suck a gigantic volume of air into the engine to be mixed with fuel within the engine’s nacelle, then combust into the hot gas that would create thrust.
Are jet engines efficient?
Jet engines are already pretty efficient, but Ihme and team believe they have found a way to more precisely control the ratio of air to fuel inside the combustion chamber — the critical variable that governs emissions, efficiency and safety.
How do jets get oxygen?
The Basics of Cabin Oxygen
The answer to this question is actually relatively simple: Airplanes get fresh oxygen to use in the cabin from the air outside the fuselage. Regardless of the airplane’s size or flight elevation, there’s plenty of fresh oxygen available in the surrounding air.