Jack,
 
I clicked the link and read the article. The analysis looks sound. The A350 has 
a higher cruise speed and a tailwind. One difference that was not mentioned is 
the cruise altitude. A heavily loaded 777-300 will fly at a much lower altitude 
than an A-350. The wind planning for the a 777-300 at FL310-330 at level off 
will be entirely different than an A350 which might be up at FL370 initially.
 
In the case of engine failure the difference in drift down performance might be 
even more significant. Notice that the route taken by the JAL flight is mostly 
over water. The Finnair flight is over some seriously high terrain. I don't 
know the engine out performance of the 777-300 but I'll bet it isn't as good as 
the A350.
 
Eric

> On 06/17/2025 1:51 PM EDT Jack Keady via Mifnet <[email protected]> 
> wrote:
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> keady - say something about this pls.
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> Flightradar24.com 
> https://www.facebook.com/flightradar24?__cft__[0]=AZUN6-SSPgLx7VmSDLS_ZA5MnbUjowu437ZquiGlS58iKQnH_6bHWBHnxVP7643NrOic2yTByF6fjF_oxy7hnuXS64FBb4q_qVGWVGgtHrssAe8mN3onQNgA4qu7H6l635HlZ1NEhQeNLGtrusCdPY2AeRYOnxgvkNL9uj8MfxwtJJY9KKu9xnKXuVtIuCkpdFD9TkY0toqf9L2tX9DVuFX1Hh0W_6_FgqX32_OmPdzGS2jQL8dRKWAY05k2dfHKtsI&__tn__=-UC%2CP-R
>  ·
> Follow
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> Srstopeodnl29gfl071i89f8i9tm33a167c065immhmh0af4l06fu84haa85 
> https://www.facebook.com/?__cft__[0]=AZUN6-SSPgLx7VmSDLS_ZA5MnbUjowu437ZquiGlS58iKQnH_6bHWBHnxVP7643NrOic2yTByF6fjF_oxy7hnuXS64FBb4q_qVGWVGgtHrssAe8mN3onQNgA4qu7H6l635HlZ1NEhQeNLGtrusCdPY2AeRYOnxgvkNL9uj8MfxwtJJY9KKu9xnKXuVtIuCkpdFD9TkY0toqf9L2tX9DVuFX1Hh0W_6_FgqX32_OmPdzGS2jQL8dRKWAY05k2dfHKtsI&__tn__=%2CO%2CP-R#?hck
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> Yesterday, Japan Airlines and Finnair flights from Helsinki to Tokyo took 
> very different routes. Even though it flew further, Finnair beat JAL to 
> Haneda. We look at some of the flight planning considerations. 
> https://flightradar24.com/.../jal-finnair-helsinki-tokyo.../ 
> https://flightradar24.com/blog/flight-tracking-news/jal-finnair-helsinki-tokyo-race/?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExUFB3MzR4M29pYVFpTXNlTgEe53CfcIpwQDBV9MpwoMwJ9RpuDk8qXD3vhfowzmFgH1D4Br839Fi41-tOBCc_aem_EN94oZX37igSyF1ibrKdbw
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> [May be an image of map, arctic and text that says 'Tokyo flightradar24 
> FinnairAY61 Finnair AY61 11,994 km 12:34 Great GreatCircle Circle distance: 
> 7,843 7, km JAL JALJL48 JL48 11,537 11,537km km 13:30 Helsinki']
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> All reactions:
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