QFA 747 Go Around @ BNE?

[boree3]

Anybody any idea what the QFA 747 was doing this arvo at Brisbane? At 3.10 p.m. local at about 3 d.m.e of Rwy 19 i looked up to see a QFA 747 go past with its gear still down and it appeared to stay down until i lost it in the sun. I watch aircraft all the time from the same locality and under normal conditions they always have the dunlops well and truly "up"

[newbe20]

cooling the brakes maybe??

[faheel]

ok I will bite,
Please explain how the brakes ever get hot on a go around?? oh puhlease!!!

[swh]

boree3,

Was not there, but if it was a normal departure you may need to leave the wheels down on a larger aircraft like that if the flight brakes to a set of wheels is u/s. The spinning wheels would have significant rotational inertia and torque generated from the movement of the rotating wheels can place large loads on the aircraft.

:hmm:

[Uncommon Sense]

Hmm, are you sure was a go-around and not just brake cooling after a quick turnaround at a heavy landing weight?

A go around you would be more likely to keep sight of as it would normally do a circuit back to land again subject to traffic - and would retract gear.

[Going Nowhere]

It was probably QF51, BNE-SIN. It left at 2:47pm this afternoon.

[Feather #3]

Equally, in attempting to retract the gear, the lever lock may prevent it because it detects an unsafe situation. The gear stays down until appropriate checklist action either permits retraction or a return.

G'day ;)

[assymetric]

Uncommon Sense

I am not sure about this but common sense says that if his brakes were so hot for take-off after a quick turnaround as you suggest, that he would have to leave them down to cool off then.........wouldn't he most probably been limited by his Vmbe and therefore stay on the ground until his brakes had cooled down.

Like I said not sure but something to think about. :ok:

[Capt Claret]

Seeing as the odds are on hot brakes, and seeing as the possible take off was from 19, and seeing as the INTL terminal is about 4km closer to town than the 19 threshold, maybe the brakes were a little warm. :}

[Blip]

Believe it or not but the same thing happened in Sydney today just before mid-day. B747 looked as though it was going around (must have been about 1500 ft at the upwind end of runway 34L) when I first saw it, and the gear remained down as it turned left and headed NW. I watched it for about a minute or so before I lost view of it.

do do do do... do do do do.. (to the tune of the Twilight Zone theme song):ooh:

[Uncommon Sense]

Doesnt QF 51 fly SY-BN first? May be the same B743 in question.

I seem to remember the TN A300 used to have quite an issue with the QT brake issue.

The PIC will normally tell the TWR they will be leaving the gear down prior to brakes release on departure as they would be looking for normal retraction.

[TopperHarley]

A330 departing RWY15 YBCS a couple of months ago..... Gear remained down as far as I could see the aircraft departing.... Well past false cape on the SID. ?!?!?!?!?

[dingo084]

The TN A300-B4's had the noisiest brake cooling fans I have ever heard

ding

[Capt Fathom]

Probably an inop brake. The gear is left down for 2 mins to allow for the wheel to spin down before retracting the gear.

[newbe20]

Faheel

mate, at three dme rwy19 bn i just thought that it was not a go round but a normal departure but possibly cooling the brakes after a long taxi to the threshold. i do not fly a 747 but thought that a possibilty. me thinks you bite to early.

"oh puhlease!!!" sounds like your straight out of priscilla