tag:blogger.com,1999:blog-2724211384278435799.post9097857953964227841..comments2023-08-03T04:13:24.028-07:00Comments on 747-8 Report: Air Force OneTurtleLuvhttp://www.blogger.com/profile/18186130057500645159noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2724211384278435799.post-91699958117220613622013-09-16T12:18:38.590-07:002013-09-16T12:18:38.590-07:00Doesn't a four-engine plane offer better redun...Doesn't a four-engine plane offer better redundancy than a two-engine plane? If the premise is to be able to take off with one engine out, a two-holer has to have "double-sized" engines and a lot of rudder to counteract completely asymmetric thrust, whereas a quadjet only needs about 33% more thrust margin (probably a little more, since the outboard engines are further off-center than the inboard). Does that influence the relative thrust at cruise, and therefore put a quadjet into a less-optimal fuel burn at cruise? If not, I'm just not grasping why the overhaul/replacement cost for four smaller engines is that much of an operating cost delta versus two much larger engines. Anyone able to shed any light?Pete Templinhttps://www.blogger.com/profile/03500131286526630952noreply@blogger.comtag:blogger.com,1999:blog-2724211384278435799.post-77704758534077167192013-09-15T14:56:39.576-07:002013-09-15T14:56:39.576-07:00The 777-9X is anything but the end of the 747-8!
I...The 777-9X is anything but the end of the 747-8!<br />I've read everything those pro-Airbus 747 haters dished out, and they've been doing it for awhile, and it's gotten really old! <br />I see the 777-9X, -8X and 787-10 as an A350 killer though! <br />Don't worry, the Queen ain't going nowhere!UA748ihttps://www.blogger.com/profile/08859461831439113750noreply@blogger.com