Very Cool B757 Low pass

[Lost in Saigon]

http://www.alexisparkinn.com/photogalle ... arture.wmv

[rotateandfly]

what i find even more cool than his low pass is his pull-up at the end. That looks like a pretty good climb-rate to me, what was his pitch, like 60 degrees nose up or even more?

[Hedley]

Shoulda 4-point rolled it on the 45 upline

[CAL]

listen to that thing whine...wow thats awesome...

[Hedley]

If you're an old guy, don't bother reading this.

If you're a new guy ... keep in mind that to satisfy engine-out requirements, a modern two-engine transport-category aircraft will have much more excess thrust, when all engines are turning, as compared to a four-engine aircraft.

For this run, I'm sure they were light on pax, baggage and fuel, which would increase the thrust-to-weight ratio even more.

[Extradriver]

Ya I would have rolled it on the 45 too!!

[Mitch Cronin]

He's gotta keep positive g doesn't he?... it's an airliner for kryste sake! The roll you're looking for would've had a bad ending I think. If he'd rolled it Bob Hoover style, with positive g all around (it sure looked to me like he had the energy for that?) I bet it would have looked like crap from the ground.... big ugly barrel roll...

I give the guy top marks for that. Best lookin' airliner flyby I've seen yet.

[Mitch Cronin]

... on the other hand... if he'd been able to do that big ugly corkscrew, positive g, barrel roll center stage, with the climb out afterward...

[fingersmac]

that looks like one of the two 757s that the Royal New Zealand Airforce have.

[Hedley]

um .... I can't believe that nobody here is familiar with Tex Johnston's 367-80 roll at the Seattle Hydroplane races.

It was the 707 (and KC-135) prototype. Tex (Boeing's chief test pilot) rolled it. Twice. At 1500 feet.

Google it. There are lots of still photos and videos of it on the net.

P.S. It ain't a barrel roll. It ain't a snap roll. It ain't a slow roll. It ain't a torque roll.

It's an aileron (or ballistic) roll which is not ugly in the least, and properly flown, has a little bit of positive G while inverted.

Transport Canada of course would have a cow if someone like Tex rolled a Boeing, but is anyone here old enough to remember the fiasco when a Transport Canada test pilot tried to fly the 747 straight and level? He did MILLIONS of dollars worth of damage. He had a funny name Wordsworth or Wormsworth or something like that. An RMC grad.

[COCO THE MONKEY]

Try this link for the 707 roll

http://www.orizzle.com/htm/v/094.htm

[Mitch Cronin]

Interesting... I thought an aileron roll was one where you kept the fuselage right on centerline and rolled around it...

Now that you mention "Tex Johnston" I remember someone telling me about that some time ago.. I'll look it up.
Thanks.

[172pilot]

how fast do you think the fly-by was?

i'm guessing 300 knots?

[Hedley]

I thought an aileron roll was one where you kept the fuselage right on centerline and rolled around it

No. For maximum confusion, a roll around the longitudinal axis is referred to as a "slow roll" despite the fact that it is routinely executed as fast as possible.

Even that isn't quite a correct definition of a "slow roll", according to the hallowed "red book" .... it technically a roll aligned with the aircraft's direction of travel. The slower the rate of roll, and the slower the airspeed of the roll, the more fuselage may have to "rock" as the nose is kept up with forward stick while inverted, and top rudder while in knife edge.

And then there's "dutch roll" which is hardly ever used correctly.

[pika]

Easily 300 knots. Likely teasing the barber pole.

A gross 757 with a max thrust take off is impressive enough. An empty 757 may be as close to flying a fighter as most of us will ever get.

[duncn4]

I thought an aileron roll was one where you kept the fuselage right on centerline and rolled around it

No. For maximum confusion, a roll around the longitudinal axis is referred to as a "slow roll" despite the fact that it is routinely executed as fast as possible.

Even that isn't quite a correct definition of a "slow roll", according to the hallowed "red book" .... it technically a roll aligned with the aircraft's direction of travel. The slower the rate of roll, and the slower the airspeed of the roll, the more fuselage may have to "rock" as the nose is kept up with forward stick while inverted, and top rudder while in knife edge.

And then there's "dutch roll" which is hardly ever used correctly.

Well said. The aileron roll is named so because only the ailerons are used throughout the roll. Without compensation from the elevator and rudder, the nose of the aeroplane will drop due to loss of vertical component of lift throughout the roll (unless on vertical up/downline), thus the reason for a slight pitch-up before executing the roll.

In the "slow-roll" (in the high-performance aerobatic aeroplanes of today, quite the misnomer) the elevator and rudder are used to keep the fuselage on the "centerline" of travel.

Right, Hedley?

[fougapilot]

300kias may be his barber pole! Many FAR 25 airplanes (read transport category jets) have a reduced barber pole below 10 000ft for birdstrike protection.

For example, the challenger series can fly at 360kias at 10 001ft, but must slowdown to 301kias at 10 000ft.

D

[Mig29]

Awsome vid...what an aircraft! man...

[Cat Driver]

" thus the reason for a slight pitch-up before executing the roll. "


Exactly, however it may produce better results if you use more than a slight pitch-up prior to aileron application in many light aerobatic aeroplanes.

Cat