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GE Aviation Clue 1. Parts designed at the Lynn MA plant have part numbers of the form xxxxTxxPxx, where x is a digit. 4922T12P01 fits that pattern. The gr.in is another clue. That refers to a weigh …

Even for a single plane and a single engine, there will be literally hundreds of different possible displacements depending on the condition. … The engine manufacturer will split these into several categories. First would be static versus dynamic loads. …

Option 1: Thrust is a force, and Force = mass * acceleration, and acceleration is change in velocity. So you need to measure the mass flow, the velocity upstream and the velocity downstream. It is p …

The engine was to be developed by GE, with the core of a CFM56, the fan replaced with a lower bypass fan, inlet and exhaust replaced, and that's it. The core was to be off the shelf CFM56 core. …

That is to say, no hazardous engine effects (i.e. no uncontained failures), although a loss of thrust might be experienced. … OEM tested during engine certification. …

Here's a screenshot of the engine simulator running. … The engine has to work harder to generate the same thrust. There are a number of other outputs. …

This shows an engine being assembled. The outer part of the fan frame (with fan case attached) is on the right, and the fan hub frame (with the rest of the engine core attached) is on the left. … On a two spool engine, that probably refers to the booster case, which is usually immediately forward of the fan frame. …

This is a very broad question, but if we limit ourselves to just high bypass turbofans, such as the CFM56 or LEAP-1A used on the A320, and limit "maintenance" to mean major maintenance that requires the engine … Depending on the engine, it would be removed from the wing for a complete teardown, inspection, and rebuild perhaps every 5,000 - 10,000 flights (typical lifetime of the engine could be between 30,000 …

Look into Propulsive efficiency (and maybe also this one). Turboprops have a speed of peak efficiency, which is around mach 0.6 or so. If you try to go faster, it gets significantly less efficient. …

This page shows a schematic of the mounts for the original A320. There are 4 bolts and 2 shear pins at the front mount, and another 4 bolts and 2 shear pins at the aft mount. In general terms, the A3 …

Typical turbofan engine energy path is like this chemical energy (fuel) -> thermal energy (burning fuel) -> mechanical energy (low pressure turbine shaft rotating = fan blades rotating) -> mechanical … This has more conversion steps than a typical jet engine. It will be less efficient. …

Now there is noise generated by an engine at 1/rev, but it has nothing to do with the fan blades. This noise is generated by the unbalance of the rotor. …

Typical high bypass engine like a GE90 might narrow down the exit area by a few percent. Small enough that you probably don't even notice it when looking at it. But the air can feel it. …