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Old 02-09-2020, 09:49 AM
 
Location: We_tside PNW (Columbia Gorge) / CO / SA TX / Thailand
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825mph top speeds - Not bad for an old design- did love the many international trips on 747.

https://news.google.com/articles/CAI...S&ceid=US%3Aen
..
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Old 02-10-2020, 07:53 AM
 
Location: Metro Washington DC
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Quote:
Originally Posted by StealthRabbit View Post
825mph top speeds - Not bad for an old design- did love the many international trips on 747.

https://news.google.com/articles/CAI...S&ceid=US%3Aen
..
It beat a new A350 by a minute! 747 is the best!
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Old 02-10-2020, 08:36 AM
 
Location: western NY
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AMAZING what a 90+MPH tailwind can do!! My thought however, is the airframe designed to handle those speeds?
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Old 02-10-2020, 09:02 AM
 
Location: By the sea, by the sea, by the beautiful sea
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Originally Posted by leadfoot4 View Post
AMAZING what a 90+MPH tailwind can do!! My thought however, is the airframe designed to handle those speeds?

Constant tail/headwinds affect the groundspeed, not the aircraft's speed through the air.
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Old 02-10-2020, 05:17 PM
 
Location: We_tside PNW (Columbia Gorge) / CO / SA TX / Thailand
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747 = bigger profile to push = more benefit from tailwind. I like to watch the flight tracker when flying to see when we get above 800 mph. (Occasionally)..
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Old 02-10-2020, 06:14 PM
 
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I wonder if it got a gate right away. Last time I used BA we had to wait 30 minutes and than a bus picked us up....
Inside Heathrow things go real fast though.
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Old 02-10-2020, 06:43 PM
 
Location: Morrison, CO
34,237 posts, read 18,594,984 times
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Quote:
Originally Posted by leadfoot4 View Post
AMAZING what a 90+MPH tailwind can do!! My thought however, is the airframe designed to handle those speeds?

Groundspeed is different from Airspeed.
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Old 02-10-2020, 08:23 PM
 
11,025 posts, read 7,847,323 times
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And how did the flights going in the opposite direction fare? Did they all have enough fuel to complete their trips or did they need to stop to refuel in Gander or some other place?
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Old 02-10-2020, 09:09 PM
 
Location: Niceville, FL
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Quote:
Originally Posted by kokonutty View Post
And how did the flights going in the opposite direction fare? Did they all have enough fuel to complete their trips or did they need to stop to refuel in Gander or some other place?
Have heard 8+ hours on the westbound in some cases. I don't believe refueling stops were involved.
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Old 02-10-2020, 09:45 PM
 
Location: We_tside PNW (Columbia Gorge) / CO / SA TX / Thailand
34,742 posts, read 58,090,525 times
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Quote:
Originally Posted by kokonutty View Post
And how did the flights going in the opposite direction fare? Did they all have enough fuel to complete their trips or did they need to stop to refuel in Gander or some other place?
Yeah... 2+ hrs to a 5.5 hr westbound flights... (that is huge %)

Asia runs we would be 2 hrs late on a 12 -18 hr flight (that was bad too, but not nearly the % bad))

I don't recall stopping for fuel, tho last yr a coworker had to stop in Japan for fuel, then the only way to get OUT of Japan for allowable routing, they had to take a train to a different airport. He was one day delayed to destination! I had left a day later and we arrived at the same time (He much more tired). Work tasks began 1 hr after arrival with flights back to China that night, then a one week mad rush between China destinations. He was beat from the start. I was 'all rested up' from my 18 hr Direct flight)
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