That is condensation from hot engines in cold air.
It reduces climb performance.
It was a high altitude, very fast recconnaisance aircraft
The SR 71 was a very secret high speed, high altitude reconnaisance aircraft. Only 32 were built, at enormous cost.
An altimeter (altitude meter) tells the pilots how high the aircraft is flying. There are 2 types of altimeters commonly used in aircraft: pressure altimeters and radar altimeters.
James L. Bettner has written: 'Propulsion system assessment for very high altitude UAV under ERAST' -- subject(s): Performance tests, Pilotless aircraft, High altitude, Aircraft design, Propulsion system
The higher an aircraft is the less air in the atmosphere. this means less air resistance which means you can go faster with less effort. also less air means less fuel burnt for same power. this saves fuel. for this reason most aircraft will operate at high altitudesThere are also fewer obstructions at high altitude than there are at 1000 feet.
The SR-71 is a high-altitude, high-speed reconnaissance aircraft. It carries high performance cameras used in spying.
Well I think iM not sure that high altitude discharge its when the charged solar particles acumulate and the lighting occurs and the gorgeuus celestial phenomenon resulting from this effect its the aurora
Temperature - low temperature gains altitude quicker Pressure - High pressure gains altitude quicker Density - Low density gains altitude quicker
A jetstream is a very powerful, high altitude wind. It can affect aircraft that fly through it by shaking and buffeting.
It cruised about 60,000 feet, so that's about as high as it would go.
Sulfur particulate and contrails from aircraft can produce high altitude pollution