Very fast take off roll ...

... last night on the VS46, an A346 - from wheel breaks off to into the air 16 seconds which was super fast! The engines were very noticeably spooled up big time before the breaks were released, and it was windy and snowy.

I always time them, somewhat superstitiously!

And it did a roll?

[Darren Wheeler]

What was the loading like?

They do that at LCY so they can get high enough to avoid crashing into the HSBC and Barclays buildings!

quote:Originally posted by Darren Wheeler
What was the loading like?


277 pax, no idea about cargo, but was very quick up into a strong wind!

That sounds like fun. I derive some kind of warped kick [:I] when there's something other than the usual smoothly up / smoothly down routine. Go arounds can be quite exciting in that respect - though they do tend to unnerve those who haven't experienced them before.

I have experienced the opposite of the fast take off in an A-346; the short landing. When we flew back from EWR last year the aircraft seemed to touch down and stop on a sixpence with no feeling of reverse thrust / application of air or wheel brakes once on the ground. Just as though all the momentum evaporated.

quote:Originally posted by pjh
Go arounds can be quite exciting in that respect - though they do tend to unnerve those who haven't experienced them before.


I very much agree [y] but only when the go around is a result of congestion on the runway and not missing undercarriage!

Before they extended the runway at ANU, it was right on the limit in terms of length, for a 744.

Fully loaded with cargo and pax, they have to rev those engines up well before release of the brakes, and even then you would have very little of the runway to play with at the end, seemed a tad dangerous to me lol.

I hate go-arounds because my interior clock starts counting down to when I can have my first cigarette as we go on approach!!! sad aren't I.

quote:Originally posted by slinky09
quote:Originally posted by pjh
Go arounds can be quite exciting in that respect - though they do tend to unnerve those who haven't experienced them before.


I very much agree [y] but only when the go around is a result of congestion on the runway and not missing undercarriage!


Fair point.[:)] Had 2 out of around 200 flights. One a sudden severe rain squall, one a rabbit on the runway.

quote:Originally posted by seany
Before they extended the runway at ANU, it was right on the limit in terms of length, for a 744.

Fully loaded with cargo and pax, they have to rev those engines up well before release of the brakes, and even then you would have very little of the runway to play with at the end, seemed a tad dangerous to me lol.

The margins are that there will always be enough power in reserve so that a safe take-off can be achieved with one engine failure. That is one of the reasons why twins have such large engines relative to quads; they don't need the power normally, but they have the required reserve if needed.

Another factor is that the pilots will calculate the power setting required for the conditions and will only use sufficient throttle get airborne safely. Using lots of power greatly increases the engine wear (not to mention fuel).

Dave

[Scrooge]

quote:Originally posted by aspence7
They do that at LCY so they can get high enough to avoid crashing into the HSBC and Barclays buildings!


Ummm nope.

quote:Originally posted by seany
Before they extended the runway at ANU, it was right on the limit in terms of length, for a 744.

Fully loaded with cargo and pax, they have to rev those engines up well before release of the brakes, and even then you would have very little of the runway to play with at the end, seemed a tad dangerous to me lol.


When calculating the take off settings for the engines the crew needs to figure in a rejected take off the moment before V1, also figured into this is if an engine loses power so in reality neither case is true.....With that said, I still love the feeling of a lightly loaded 744 at take off trust.

If you really want to feel some power find a route that has a 752 and catch a ride [y]

13R-31L is closed at JFK right now for maintenance - I would imagine a combination of a strong head wind and a shorter runway dictated your the sharp take off roll. [:)]

There are also defects that are defered in accordance with the MEL that require TOGA power setting.

With reference to reserve power, max take-off power is exactly that. Although as my learned friend mentions most take off's would be de-rated/flex therefore using less fuel.

quote:Originally posted by Denzil

With reference to reserve power, max take-off power is exactly that. Although as my learned friend mentions most take off's would be de-rated/flex therefore using less fuel.

And it keeps the Monkeys out of the Donkeys... [;)]

Boy Racer pilot reving his engin at the traffic lights?

We had a near vertical take off in an A340-600 some years ago from LAX with 40 pax and I assume no cargo.

There had been a flight cancelled the day before and VS actually operated 3 flights to LAX the following day. This was the return of the extra flight and it left around 3:00pm as I recall and only a few of us found out and got there early enough to get on.

It was New Years eve and with only 40 pax and a full compliment of staff it was quite a party, one of my best flights ever.

I had the same thing on vs 46 a couple of weeks back. I wondered if it had anything to do with clearing liquid out of the engines after de-icing?

quote:
quote:Originally posted by Scrooge
[quote]Originally posted by aspence7
They do that at LCY so they can get high enough to avoid crashing into the HSBC and Barclays buildings!


Ummm nope.

Well obviously!

quote:Originally posted by manymiles
We had a near vertical take off in an A340-600 some years ago from LAX with 40 pax and I assume no cargo.

There had been a flight cancelled the day before and VS actually operated 3 flights to LAX the following day. This was the return of the extra flight and it left around 3:00pm as I recall and only a few of us found out and got there early enough to get on.

It was New Years eve and with only 40 pax and a full compliment of staff it was quite a party, one of my best flights ever.


Did you write a TR for that trip ? If so I am sure it would be an interesting read !