Select committe Carriers

[Modern Elmo]

I accept the F-35 only has one main propulsion gas turbine but are you saying it does not have a second gas turbine engine?

The VSTOL F-35, like the other versions of same, has only one gas turbine engine. The aircraft has one engine.

The lift fan is driven by a driveshaft from the engine. The driveshaft is engaged or disengaged by a clutch. No, there's no clutch foot pedal required.

Here's a photo of the engine, driveshaft and lift fan. The lift fan and driveshaft are at the right side of the photo.

http://upload.wikimedia.org/wikipedi...ne_of_F-35.jpg