New answers tagged

-1

I think this is the sound of combustion, as for example it is always the first sound that gets higher in frequency when fuel flow is increased (or engine spools up). Furthermore, the sound is more audible when sitting just above the wing, as this part is quite close to the combustion chamber, so combustion can be heard. It also makes sense as combustion to ...


1

As in immediate recognition, for spotters for example, the easiest way to tell the difference is by the sound they make, more specifically on take-off. Turbines have a fairly high singing pitch, due to their rpm, whereas piston engines, making a generally much lower pitched brawling sound, only have such a high pitch added to their sound profile if they are ...


12

As Bianfable has pointed out, the C-130 Hercules does not have a supercharger or a turbocharger. No turbine-powered aircraft have them. Turbine engines do not need these forced-induction chargers since turbine engines compress the intake air themselves. It would be impractical to design a supercharger or turbocharger for them. The easiest way to know if a ...


7

Superchargers and turbochargers can be used on piston engines to increase the manifold pressure above ambient pressure, meaning more air can go into the cylinder during each stroke. This increases the power output of the engine. While superchargers were quite common in high performance aircraft of the past, they are relatively rare today. Most aircraft ...


0

Back in the early days of the deployment of the C-5 cargo plane, overflexure of the wing-to-fuselage attachment during landings was identified as one reason for the serious cracking in that area which the first revision of the C-5 was susceptible to. One cause of the overflexure was that during a hard landing, at the moment of touchdown the mass of the ...


2

"Shock" loads on landing can be transmitted to engine components. The original poster appears to be asking about turbine engines specifically. The significance of a hard landing on the engine spools themselves will be shaft flex and case flex, and the possibility of blade rubbing (and erosion). This is a concern with a hard landing, and ...


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