Why do jet engines have a cone?

Purpose. The main purpose of an inlet cone is to slow the flow of air from supersonic flight speed to a subsonic speed before it enters the engine. Air passing through the conical shock wave (and subsequent reflections) slows to a low supersonic speed.

What is the purpose of tail cone?

i. The cone-shaped section of the exhaust system of a gas turbine engine used to produce the correct change of area of the duct through which the exhaust gases leave the engine.

Why are jet engines blue?

The blue color is given by the characteristic EM radiation of C-H bond breaking, C- and H- radicals forming and recombining with O- radicals to form CO2 and H2O. This is independent of temperature and is the reason why a new gas oven’s flames are blue.

Why the color of gas turbine spinner is black?

Some oil discoloration is normal in engine use of gas turbine oils. Black oil is not an oil problem; it arises due to specific engine conditions. Black oil. The phenomenon referred to as “black oil” is not due to oil discoloration but to the suspension of very small amorphous particles in the oil.

What is hanging off the tail of the 737 Max?

By trailing a static port far behind the airplane, the static port remains clear of most of the air pressure disturbance caused by air flowing around the airplane. Often the static cone and its tube are on a reel that the crew can extend after takeoff to trail the cone farther behind in “clean” air after takeoff.

Why do Russian jet engines burn blue?

Vice versa, the blue colour happened because the injected fuel is steady and lesser than the volume of air within the engine, giving out a balance mixture and in turn, will burn all of the fuel completely before exiting the nozzle: Thus the blue plume.

Why do Russian afterburners burn blue?

In fact, as opposed to the orange plume you can observe on Western afterburners, Russian ones appear to be blue in color meaning that all the injected fuel is burnt before exiting the nozzle (the result of the engine design and the way fuel is dumped into the center of the cylinder): there is a more complete combustion …