Thrust recovery nozzle
 

In my A320 FCOM, in description of the walk around I found reference to "thrust recovery nozzle", which is located on LH side of the engine. The FCOM says this pertains only to PW engines (sic!)

I assume it's an error of some sort, perhaps copy+paste from A330 FCOM, or some such, as I have yet to see a PW engine on the '320...

However, I am still curious what this nozzle is and how it works... Anyone?

There's ram air (pressurized air) used to cool parts of the engine. If this air is vented through the rear of the engine, then some small amount of thrust can be obtained ("recovered") probably at some temp expense. This is similar to cabin pressure outflow recovery.

I believe on the IAE V2500 there's a thrust recovery outlet that's normally closed behind an access panel door on the left side of the engine. IAE = 49.5% PW :)

THX Peekay! :ok: