critical altitude

Graphs 3 and 4 look as though the critical altitude of the engine is an important factor.

Flight above the critical altitude proved dangerous if not nearly impossible due to inherent instability.

Above the critical altitude, engine power output will start to drop as the aircraft continues to climb.

The altitude at which the wastegate fully closes and the engine still produces full power is the critical altitude.

Never has a show soared to such critical altitude and niche devotion on the art of the cold stare, the unfinished sentence, the trailing plot point.

It also called on the airline to "review the policy and procedures regarding the risk associated with changeover of control at critical altitudes or critical times."

The pilots' failure was the last stage in the process after the plane entered a critical altitude,' he told a news conference announcing the results of the investigation.

Atmospheric expansion as a result of space weather raises the critical altitude by increasing drag; in the 90s, it was a factor in reduced debris density.

Previous version twin superchargers were replaced with a large single-speed compressor attached to an after-cooler (the critical altitude was 2,000 m, 6,561 ft).

When the aircraft climbs above the critical altitude, engine power output decreases as altitude increases, just as it would in a naturally aspirated engine.

The theory is that at certain critical altitudes, roughly from 6 to 12 miles, increasing carbon dioxide has the effect of warming the tropics but cooling the polar regions.

They are the cause of horizontal and vertical shearing, which can be extremely dangerous for all types and categories of aircraft, particularly at low and critical altitudes.

The double staging of the compressed fuel/air mixture provided the boost pressure through a diffuser to the intake manifolds that increased the critical altitude of the power plant.

Above this critical altitude, the perigee is above the atmosphere and the object will be able to complete a full orbit to return to the altitude it started from.

The reduced power at sea level was inevitable for engines with one-speed mechanically driven superchargers when they were regulated to a constant maximum boost pressure below their critical altitude.

That is, until you reached another critical altitude -- 47000 km. At this point, you'd be slung off into space at more than the local escape velocity, and would never return.

The report recommended Lion Air immediately implement several safety measures, such as reviewing "the policy and procedures regarding the risk associated with changeover of control at critical altitudes or critical time."

The similar C and D models featured a lower supercharger gearing for better performance at lower altitudes, improving takeoff power to 1,000 PS, but reducing the critical altitude.

The reason, he said, is apparently that one effect of global warming is to increase the temperature contrast between the tropics and polar regions at critical altitudes, thereby strengthening the westerly winds.

The facility became operational in 1976 and has since been providing aerodynamic simulation in critical altitude regimes associated with strategic offensive missile systems, advanced defensive interceptor systems, and hypersonic vehicle technologies.

The centre will also oversee the development of two of the three finalists for Esa's seventh Earth Explorer mission: Premier, to measure atmospheric composition in a critical altitude range between five and 25km; and Biomass, to make precise measurements of the carbon locked up in the world's forests.

As the critical altitude was passed a pressure-operated aneroid capsule operated the gearbox which changed up to high blower, driving the impellors faster, compressing a greater volume of the air-fuel mixture.The second stage starting was often accompanied by a noticeable jolt, which inexperienced pilots often mistook for some type of engine malfunction.