Originally Posted by
doppeldecker
Meīs just a humble little student pilot, single engine piston, proudly commanding a C152 (most of the time the plane commands me). But who knows...
So I have one of those dreaded newbie questions about a thing I coulnīt yet get figured out:
What is an engine/compressor blade stall in a jet engine? (correct me if I do not use the right terms)
The
wiki explanation isn't bad.
Blade stall is exactly the same, in aerodynamic terms, as a wing stall on your 152; the blades are, after all, little aerofoils, and if pushed to an AoA above their limit, they stall.
Surge is the actual engine level phenomon, though, and occurs when the flow through the compressor is sufficiently disturbed to actually be noticeable.
In aircraft terms, blade stall is analagous to a local separation on your wing, whereas surge is analagous to the full wing stall that you recognise as a pilot.