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Is VMO an absolute aerodynamic limit ?

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Is VMO an absolute aerodynamic limit ?

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Old 14th Jun 2009, 10:11
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I believe the old B727 is the fastest of all the Boeing models.

Correct me if i am wrong, but it has 2 max speed modes which you could change, the fastest 380 Kts indicated!
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Old 14th Jun 2009, 10:12
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Would be interesting how many other ones have been quietly barrel rolled somewhere out of sight of prying eyes.....
Yeah but, it does take a bit more than average skill to barrel roll an aircraft properly in the real world. The consequences of getting it wrong in a transport cat jet would be..... messy!

These are some photos of a biz jet that was rolled by a pilot who's imagination outweighed his flying ability ("Duh, it worked on MSflightsim").





Also worth noting, AirmanDave has resurrected a thread that's nearly 2 years old.
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Old 14th Jun 2009, 10:38
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Originally Posted by Mercenary Pilot
Yeah but, it does take a bit more than average skill to barrel roll an aircraft properly in the real world.
Couldn't agree more....
But then, "Tex" Johnson, Rory Falk and Jean Franchi were pilots of "a bit more than average skill", you'll have to admit.

BTW, thanks for the photos!

CJ
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Old 14th Jun 2009, 13:26
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AirmanDave -
I may be really tired right now and forgetting something, but I know this is where the term "Mach Tuck" comes into play.
MACH TUCK...MACH TUCK ??? Mach Tuck is watt I dive don ta oad.
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Old 14th Jun 2009, 13:48
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Re photos: if you are imprudent enough to try something unusual then you need to know the possible consequences resulting from the manoeuvres, and the differences between the types of manoeuvre – in this instance between multiple snap rolls and a barrel roll.
Generally the latter being less stressful and ‘gentle’; whereas the former might involve roll/yaw coupling, but neither necessarily involving VMO.
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Old 14th Jun 2009, 14:02
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But then, "Tex" Johnson, Rory Falk and Jean Franchi were pilots of "a bit more than average skill", you'll have to admit.
I certainly would.



Apparently the cause of the damage to the bizjet was the pilot realising that he had screwed up and tried to pull through the manoeuvre, which is also what most pilots tend to do when learning how to do a barrel roll.
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Old 14th Jun 2009, 14:46
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As far as we know, the Concorde barrel rolls were never caught on film.

More's the pity, since during the filming of "Airport 79 - Concorde" Jean Franchi proposed doing a real barrel roll in front of the camera instead of that stupid loop they used in the end.

Oh, and ... during the event for the 40th anniversary of the 1st Concorde flight, André Turcat again confirmed the barrel roll stories. What annoyed him most about it, he said, was that he hadn't had the opportunity of doing one himself....
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Old 14th Jun 2009, 14:59
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Any excuse for a Concorde video.

Sadly no footage of the stunt itself although Brian Walpole (British Airways) discusses "unwinding" her alongside Jean Franchi (Concorde Test Pilot).
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Old 14th Jun 2009, 17:09
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I liked the descend and landing.

concorde cockpit - Google Videos
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Old 14th Jun 2009, 17:30
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ClippedCub,
Another bit pirated off the original 5-hour 2 DVD set from ITVV...

Well worth having if you're a Concorde fanatic (like undersigned).
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Old 14th Jun 2009, 17:34
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Thanks, didn't know about the DVD, will look it up.
Pilot's motto - "No such thing as too much performance."
Customer - "Performance costs money"
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