Photo 4,260 of 4,263 by Steve Brimley
Photo 4,260 of 4,263 by Steve Brimley
  • Michael Brazier-Aviation-Images
    Untitled (Cargolux)
    Boeing 747-4B5(BCF)
    Boeing 747-400 (AL-1)
    Boeing 747-400 (AL-1)
    Boeing
    24200
    748
    LX-ACV
    Kemble
    England
    United Kingdom
    June 25, 2012
  • 123

Photo Details

Photo ID
#2129739
Views
15,436
Airline
Manufacturer
Line No.
Region
Accepted
July 07, 2012
Caption
Cargolux Flight CV777 from Atlanta Hartsfield-Jackson to Luxembourg Findel is seen here at 38,975’ over north Wiltshire heading 095 degrees and 547 knots (629 mph) a very high speed for a 747. I was sorry to have just missed its transit across the face of the moon. The picture was taken from my mother’s garden in Kemble. (60D; 400mm)
Width
1024px
Height
683px

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July 14, 2012

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Comments (3)

Anonymous
4 years ago
Wow that 0.95 Mach...incredible catch!!....i remember reading that cruise is generally at 0.85 Mach, but the 747 can structurally endure stresses generated on the body up to 1.25 Mach, however, the drag created by shock waves makes it uneconomical to fly at the speed , additionally the shock waves created by the beast would be rather disturbing to people on the ground
Anonymous
4 years ago
Well don't forget Mach is subject to temperature. If it was a fair bit warmer than ISA, that high speed will be equivalent to a lower Mach No. I say 'speed' because the speed written in the description could also be ground speed, in which case if you've got a nice strong jetstream, 547kts is very reasonable... Maybe a little more info from the photographer?
Anonymous
4 years ago
Neither of the above commentators would get a job as a proof reader !!!