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NNTP-Posting-Date: Sat, 04 Mar 2017 14:37:40 -0600
From: Daniel GREGOIRE <daniel.gregoire76@sfr.fr>
Newsgroups: alt.binaries.pictures.aviation
Subject: Re: Here's Why Engines Are Making Planes Slower Now Than 50 Years Ago
References: <o9aici0rrc@drn.newsguy.com> <OJ6dneOx3O5hIiTFnZ2dnUU7-W_NnZ2d@earthlink.com> <2017030320484697157-savageduck1@REMOVESPAMmecom> <2017030321215021153-savageduck1@REMOVESPAMmecom>
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In article <2017030321215021153-savageduck1@REMOVESPAMmecom>,
Savageduck <savageduck1@{REMOVESPAM}me.com> wrote:
> On 2017-03-04 04:48:46 +0000, Savageduck <savageduck1@{REMOVESPAM}me.com>
> said:
>
> > On 2017-03-03 19:11:59 +0000, "Byker" <byker@do~rag.net> said:
> >
> >> "Miloch" wrote in message news:o9aici0rrc@drn.newsguy.com...
> >>>
> >>> http://jalopnik.com/heres-why-engines-are-making-planes-slower-now-than-50
> >>> -1792874022
>
> --->
>
>
> >>>
> >>> https://www.youtube.com/watch?v=n1QEj09Pe6k
> >>
> >> Imagine flying on a Lufthansa 737 nonstop from Frankfurt to Pune, India.
> >>
> >> 4,151 mi. (6,681 km.) in 8 hours, 25 minutes: http://tinyurl.com/zndx2m9
> >
> > Hell! I just flew AMS to SFO 10,946 mi. (17,615 km) in a KLM 787-9 and
> > that took 10 hrs 12 minutes. Now that I have flown in a 787-9 I would
> > recommend it for any trip. It was probably the most comfortable
> > commercial flight I have taken to date.
>
> Actually that flight was closer to 10 hrs 40 min.
>
> BTW: The other leg of that trip was AMS to CPT (Cape Town) 6,026 miles
> (9698 km) and return in a KLM 777 that was an 11 hr 55 min flight each
> way. I don't know what accounts for the flight time discrepancy between
> the 777 on the shorter AMS-CPT route and the 787-9 on the longer
> AMS-SFO route. Perhaps wind conditions, or aircraft performance, or a
> combination of both.
A little on the performances but a lot on the winds that are favorable
or not. I remember a flight a few years back where the air speed was
more than 600 mph but ground speed was only 540 due to contrary wind.
Usually there a difference between east-west and west-east flight time
but not on north-south or south-north
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