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2. Propfan - Wikipedia

   en.wikipedia.org/wiki/Propfan

   One of the earliest engines that resembled the propfan concept was the 4,710 pounds-force (21.0 kilonewtons) Metrovick F.5, which featured twin contra-rotating fans—14 blades in the fore (front) fan and 12 blades in the aft (back) fan—at the rear of the engine and was first run in 1946.

3. Hush kit - Wikipedia

   en.wikipedia.org/wiki/Hush_kit

   Rolls-Royce Conway Mk508 (1959) with hush kit attached. The most common form of hush kit is a multi-lobe exhaust mixer.This device is fitted to the rear of the engine and mixes the jet core's exhaust gases with the surrounding air and a small amount of available bypass air.

4. I tried this genius gadget to hear airplane movies with my ...

   www.aol.com/lifestyle/airfly-pro-review-airpods...

   It's a first-world problem, but a problem all the same: You plunk down in your airplane seat, all set to watch some in-flight entertainment, when you realize there's no way to use your AirPods ...

5. Variable pitch fan - Wikipedia

   en.wikipedia.org/wiki/Variable_pitch_fan

   There are two solutions to this problem: 1) Open up the cold nozzle area at low flight speeds, which moves the fan working line away from the surge. This has little effect on the position or slope of the surge line. OR 2) Make the effective surge line of the fan shallower by progressively reducing the pitch of the fan as the engine is throttled.

6. Geared turbofan - Wikipedia

   en.wikipedia.org/wiki/Geared_turbofan

   In a geared turbofan, a planetary reduction gearbox between the fan and the LP shaft allows the latter to run at a higher rotational speed thus enabling fewer stages to be used in both the LP turbine and the LP compressor, increasing efficiency and reducing weight. However, some energy will be lost as heat in the gear mechanism and weight saved ...

7. How common are plane engine fires and bird collisions? An ...

   www.aol.com/news/common-plane-engine-fires-bird...

   An American Airlines flight made an emergency landing at its departure airport in Columbus, Ohio, Sunday morning after a bird allegedly struck the engine. “Mayday. Mayday. Mayday, American 1958 ...

8. 'Airplane!' creators reflect on the classic comedy that would ...

   www.aol.com/news/airplane-creators-reflect...

   “Airplane!” is one of the most beloved and influential comedies to ever hit the silver screen. Surely you want to know more about it. The new book “Surely You Can’t Be Serious: The True ...

9. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!