Seeing a 747 with 5 engines reminds me of seeing GE's N747GE testbed aircraft in Mojave, which usually flew with a odd engine configurations. I can't remember i

Seeing a 747 with 5 engines reminds me of seeing GE's N747GE testbed aircraft in Mojave, which usually flew with a odd engine configurations. I can't remember if they used the 5th pylon at all and most pictures show an experimental engine on the inboard pylon. Sometimes a very large engine[1], sometimes a small one[2]. One time they tried to ferry the aircraft from Mojave to Victorville with only three engines (they must have removed the experimental engine for whatever reason). They attempted the take-off but had to abort. It was quite a sight anyways. They went back to the hangar and we saw it fly away with four engines a few days later. GE now has a second 747 to play with.[3] [1] http://www.jetphotos.net/photo/45634 http://www.jetphotos.net/photo/45634 [2] https://en.wikipedia.org/wiki/File:Ge-747-N747GE-020404-01.jpg https://en.wikipedia.org/wiki/File:Ge-747-N747GE-020404-01.j... [3] http://www.sieinc.com/into-thin-air-the-lofty-side-of-jet-engine-testing/ http://www.sieinc.com/into-thin-air-the-lofty-side-of-jet-en...