What is the difference between aerodynamic stall and an engine stall?

Question

What is the difference between aerodynamic stall and an engine stall?

Answer 1

1) Aerodynamic Stall is a phase of flying when the wings do not generate enough lift to sustain the aircraft in controllable flight. The aircraft  will then fall down and lose altitude. These stalls can be either normal stall or accelerated (high 'G') stall. The former when normal flying speed is lost, the latter being induced at higher speeds under high G conditions. In both types of stall, the laminar airflow over the wings breaks down and separates from the boundary layer. The remedy is to build up flying speed in the former and ease off on the Gs for the latter.

2) Typically an engine stall relates to jet turbines when the smooth airflow in the turbine is disrupted and the process instead of producing the thrust, redirects the air or air/fuel mixture towards the air inlet. Such stalls are caused either by insufficient airflow or the fuel mixture being overly rich and not enough oxygen being present to ignite the fuel. Engine stalls disrupt the airflow over the turbine blades. Remedy is to throttle back, gain enough speed (to accelerate the airflow) and gently open up the throttle.

Answer 2

Car and truck engines are said to "stall."  Pilots don't say that an airplane engine "stalls."  Airplane engines "quit," "conk out," "pack up," "go west," "leave the party," and any of 125 other cute expressions.  The official terms is "engine failure," which can be "partial" or "total."

In aviation, it is correct to speak of "stalling," and, as you seem to understand, a "stall" in an airplane means that the wing stalls, not the engine.

A wing stalls (what you labeled an "aerodynamic stall," which is quite correct) when the angle of attack becomes so steep that the layer of air passing over the upper surface of the wing cannot remain in contact with the wing.  The result is an abrupt loss of lift.

A significant part of any pilot's training is the process of learning to recognize the onset of a stall and take the appropriate action.

There are 473 other ways of explaining what a stall is, how it happens, why it happens, what to do about it, how pilots are trained in stall recovery, and so on.  I hope some other people will post more about it.  I just gave a very simple and quick discussion, because it's all the time I have.

You can find out a lot more by doing an internet search on "basic aerodynamics."

Answer 3

Aerodynamic stall is when airflow no longer flows smoothly over the wings of an aircraft, and as a result, drag significantly increases while lift decreases.

This results in the aircraft being uncontrollable and falling to the ground.

Engine stall is when the engine runs unusually weak or stops running altogether.

Answer 4

The first is the aircarft (wings) the other is the engine (compressor stall)