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Climb Speeds Vary For 747; Why?  
User currently offlineAirmale From Botswana, joined Sep 2004, 377 posts, RR: 1
Posted (11 years 9 months 2 weeks 4 days 18 hours ago) and read 1229 times:

Last evening I saw a PIA 742 doing a high speed climb en route to Jeddah, its a daily service and I have seen it uncountable times in many of which the climb has been so slow and loud, like the aircraft is straining to stay airborne, rather scary. So why was this plane going really fast?


.....up there with the best!
4 replies: All unread, jump to last
 
User currently offlineMr.BA From Singapore, joined Sep 2000, 3423 posts, RR: 21
Reply 1, posted (11 years 9 months 2 weeks 4 days 18 hours ago) and read 1219 times:

Hi Airmale,

When you say you saw a PIA B742 doing a high speed climb to Jeddah, do you mean just after take-off?



Boeing747 万岁!
User currently offlineAirmale From Botswana, joined Sep 2004, 377 posts, RR: 1
Reply 2, posted (11 years 9 months 2 weeks 4 days 17 hours ago) and read 1209 times:

Yes, it was less than five minutes into climbing.


.....up there with the best!
User currently offlineMr.BA From Singapore, joined Sep 2000, 3423 posts, RR: 21
Reply 3, posted (11 years 9 months 2 weeks 4 days 17 hours ago) and read 1197 times:

I can't think of any significant difference in speed JUST after take-off. A heavier B747 will climb faster in terms of speed and at a lower rate of climb than a lighter B747.


Boeing747 万岁!
User currently offlineLeezyjet From United Kingdom, joined Oct 2001, 4042 posts, RR: 53
Reply 4, posted (11 years 9 months 2 weeks 4 days 12 hours ago) and read 1141 times:

Take off/climb speeds vary on all a/c for a number of reasons such as :-

take off weight of the aircraft, temperature, pressure, altitude of airport above sea level, weather, runway contamination, obstacles such as mountains/cranes etc, any restrictions on the a/c due to tech problems...the list goes on.

 Smile



"She Rolls, 45 knots, 90, 135, nose comes up to 20 degrees, she's airborne - She flies, Concorde Flies"
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