The engine also suffered from frequent flameouts and compressor stalls.

The uprated J57-P-21 engine boosted performance but continued to suffer from compressor stalls.

Much of the testing, including the first of many compressor stalls and multiple ejections, took place over Long Island Sound.

"If those rumbles m the landing pattern yesterday were incipient compressor stalls, we'll get some real ones if we get her slowed down enough.

The appropriate response to compressor stalls varies according the engine type and situation, but usually consists of immediately and steadily decreasing thrust on the affected engine.

Compressor stalls are aerodynamic stalls in which the aerofoils in the compressor are loaded above their lifting capability.

"Due to the likelihood that the five-G limit will be routinely exceeded by fleet aircrews in training situations, the design needs further modification to prevent compressor stalls.

Due to a fan designed to smooth airflow before it enters the compressor, the F404 has high resistance to compressor stalls, even at high angles of attack.

Early on in the Hunter's service the Avon engines proved to have poor surge margins, and worryingly suffered compressor stalls when the cannon were fired, sometimes resulting in flameouts.

The engines also had proved to be extremely prone to compressor stalls, which could easily result in loss of control, severe yaw oscillations, and could lead to an unrecoverable flat spin.

The inlet could only handle subsonic air, a supercritical state drastically reduced thrust output but could also lead to surges or compressor stalls, which may cause flameouts or engine damage.

Initial aerial firing tests with the Vulcan cannon on the second aircraft were successful, but on 17 December, there was an explosion during a firing burst and the J65 engine suffered severe compressor stalls.

The wing king was in his "comfort the grieving survivors" mode, too, so maybe he wasn't trying to be so evasive--he wasn't accustomed to talking to widows about compressor stalls, center-of-gravity violations, or inflight emergencies.

A V-22 experienced compressor stalls in its right engine in the middle of its first transatlantic flight to the United Kingdom for the Royal International Air Tattoo and Farnborough Airshow on 11 July 2006.

GE also sought with the F404 a design that would avoid compressor stalls and other engine failures, and would respond quickly to control inputs; a common complaint of pilots converting from propeller planes to jets were that early turbojets were not responsive to changes in thrust input.

The Lockheed SR-71 Blackbird, a supersonic reconnaissance aircraft developed in the United States, employed Pratt & Whitney J58 turbojet engines that were known for their tendency to "hard unstart", that is, to produce spectacular compressor stalls, often violent enough to throw the pilot's head against the canopy of the aircraft.