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<blockquote data-quote="fakerandi" data-source="post: 18993688" data-attributes="member: 73789"><p>athi machan eth awula thiyenne use karapu power setting eka. hugak pilots lata kiyala thiyenne Reduced Thrust take off(Flex thrust take off which is temperature dependent). karanna kiyala engine eke life time eka extend karanna. ethakota FMS (Flight management system) ekata daapu data waradi nam take off distance required pennanne waradiyata. ehema wunada danne na. <img src="/styles/default/xenforo/smilies/default/confused.gif" class="smilie" loading="lazy" alt=":confused:" title="Confused :confused:" data-shortname=":confused:" /></p><p></p><p>comment on "pprune.org" </p><p></p><p>Takeoff was on RWY09 from intersection T1 (not full length). That leaves a TODA (Takeoff Distance Available) of ~2600m/8500ft, no way that is sufficient for a -300ER near/at MTOW. </p><p></p><p>QR has Boeing Class 3 EFBs (electronic flight bags) fitted in all of their 777s, used for takeoff/landing performance, charts etc. </p><p></p><p>Question is was full length 09 not available? Did they base their numbers off full length and then end up departing from T1??? (Full length 09 is no problem for the -300ER at MTOW).</p><p></p><p>I doubt they accidentally took off from the wrong intersection (ATC would notice) but most likely they had incorrect performance numbers. </p><p></p><p>The Boeing OPT tool (used for takeoff/landing perf calcs.) within the EFB, allows crews to enter the intersection and thus knows the distances available from that point for takeoff performance calculations.</p><p></p><p>However, if they accidentally forgot to enter the intersection T1 during their calculations (big Nono because each crew member is to do a separate calculation and then cross-check, they each have their own EFB) </p><p></p><p>In any case, near/at MTOW there is no way the OPT would output takeoff data for a RWY09 T1 intersection departure. Instead it would show the maximum takeoff weight from that intersection and the crew would have to re-calculate using that weight to receive the relevant speeds etc.</p><p></p><p>This could easily have ended a lot worse. I am curious to know if the crew fire walled the thrust levers when they saw the end of the runway approaching.</p><p></p><p>Note: The first three orange light structures should all be cross shaped and of equal size. They passed over the freeway at barely 100'.</p><p></p><p></p><p><img src="https://farm1.staticflickr.com/754/21492621105_dba130ab8a_o.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="fakerandi, post: 18993688, member: 73789"] athi machan eth awula thiyenne use karapu power setting eka. hugak pilots lata kiyala thiyenne Reduced Thrust take off(Flex thrust take off which is temperature dependent). karanna kiyala engine eke life time eka extend karanna. ethakota FMS (Flight management system) ekata daapu data waradi nam take off distance required pennanne waradiyata. ehema wunada danne na. :confused: comment on "pprune.org" Takeoff was on RWY09 from intersection T1 (not full length). That leaves a TODA (Takeoff Distance Available) of ~2600m/8500ft, no way that is sufficient for a -300ER near/at MTOW. QR has Boeing Class 3 EFBs (electronic flight bags) fitted in all of their 777s, used for takeoff/landing performance, charts etc. Question is was full length 09 not available? Did they base their numbers off full length and then end up departing from T1??? (Full length 09 is no problem for the -300ER at MTOW). I doubt they accidentally took off from the wrong intersection (ATC would notice) but most likely they had incorrect performance numbers. The Boeing OPT tool (used for takeoff/landing perf calcs.) within the EFB, allows crews to enter the intersection and thus knows the distances available from that point for takeoff performance calculations. However, if they accidentally forgot to enter the intersection T1 during their calculations (big Nono because each crew member is to do a separate calculation and then cross-check, they each have their own EFB) In any case, near/at MTOW there is no way the OPT would output takeoff data for a RWY09 T1 intersection departure. Instead it would show the maximum takeoff weight from that intersection and the crew would have to re-calculate using that weight to receive the relevant speeds etc. This could easily have ended a lot worse. I am curious to know if the crew fire walled the thrust levers when they saw the end of the runway approaching. Note: The first three orange light structures should all be cross shaped and of equal size. They passed over the freeway at barely 100'. [IMG]https://farm1.staticflickr.com/754/21492621105_dba130ab8a_o.jpg[/IMG] [/QUOTE]
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