747-400 questions

on T/O set the IAS to 250
arm the autothrottles and the engine speed will come up automtically


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"Mxsmanic" wrote in message
...
BT writes:

That's how it is in real airplanes.

Good; I like realism. But is there any technique to finding the right
throttle setting? The 747 seems particularly prone to this (as compared
to a
737).

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capt writes:

on T/O set the IAS to 250
arm the autothrottles and the engine speed will come up automtically

I usually don't have any problem with take-off. I look at the speeds that the
FMC gives me for take off, set the speed selector to that speed or just above,
then set the throttles by hand to about 70% N1 and press the TOGA button. The
autothrottle then sets full thrust and, since I'm usually light, a slight
backward pull on the yoke at Vr starts the nose up. I immediately back off a
bit to avoid a tail strike and try to hold it at about 7 degrees, and as soon
as I have positive climb it's gear up. At 500-1000 feet, I engage LNAV and
VNAV. By then I've also retracted the flaps.

Usually that works well, although on a few occasions the aircraft has really
pitched up steeply and I'm not sure why.

Anyway, it's taxiing that's difficult. It seems that around 36% N1 can get me
rolling at a reasonable speed, but there's still a tendency to end up going 40
kts on the taxiway. And if I throttle back, I end up coming to a gentle stop
instead. It's problematic no matter how the aircraft is loaded.

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You should taxi the aircraft yourself.
which is what I do.
I do not use TOGA on T/O

Now on win 98 on 2002 I can't get the throttles to reverse thrust but on
this PC I can.

TOGA I tried to use that once, but dunno what it is.

What does it do.



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"Mxsmanic" wrote in message
...
capt writes:

on T/O set the IAS to 250
arm the autothrottles and the engine speed will come up automtically

I usually don't have any problem with take-off. I look at the speeds that
the
FMC gives me for take off, set the speed selector to that speed or just
above,
then set the throttles by hand to about 70% N1 and press the TOGA button.
The
autothrottle then sets full thrust and, since I'm usually light, a slight
backward pull on the yoke at Vr starts the nose up. I immediately back
off a
bit to avoid a tail strike and try to hold it at about 7 degrees, and as
soon
as I have positive climb it's gear up. At 500-1000 feet, I engage LNAV
and
VNAV. By then I've also retracted the flaps.

Usually that works well, although on a few occasions the aircraft has
really
pitched up steeply and I'm not sure why.

Anyway, it's taxiing that's difficult. It seems that around 36% N1 can
get me
rolling at a reasonable speed, but there's still a tendency to end up
going 40
kts on the taxiway. And if I throttle back, I end up coming to a gentle
stop
instead. It's problematic no matter how the aircraft is loaded.

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capt writes:

You should taxi the aircraft yourself.
which is what I do.

I do.

I do not use TOGA on T/O

I use it more often than not on the 737-800 and 747-400, mainly just to be
practiced with it. I already know how to push the throttles forward by hand.

Now on win 98 on 2002 I can't get the throttles to reverse thrust but on
this PC I can.

How are you engaging reverse thrust? I just press and hold F2, which sets
reverse thrust after it sets throttles to idle.

TOGA I tried to use that once, but dunno what it is.

TOGA initiates take-off thrust if you are taking off, and initiates a
go-around procedure if you need to go around on an abandoned landing approach.

In the real aircraft, it's on the throttle handles. In PMDG aircraft, one of
the screws on the MCP panel doubles as a hot spot that you can click on to
engage TOGA.

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"Mxsmanic" wrote in message
...
How are you engaging reverse thrust? I just press and hold F2, which sets
reverse thrust after it sets throttles to idle.

when I press F2 the reverse thrusters won't engage. I'ts a gitch in the
operatin' system I'm sure, cause I tried it in 2 of them, with results the
same

TOGA initiates take-off thrust if you are taking off,

I've seen it in the 737-400 on the throttle panel, so do you have to put the
autopilot with altitude set on to use it

and initiates a go-around procedure if you need to go around on an
abandoned landing approach.

after tower tells you to go around.
I'll have to try it.

capt writes:

when I press F2 the reverse thrusters won't engage. I'ts a gitch in the
operatin' system I'm sure, cause I tried it in 2 of them, with results the
same

Hmm. I think F2 is the standard for reducing thrust (and reversing thrust).

I've seen it in the 737-400 on the throttle panel, so do you have to put the
autopilot with altitude set on to use it

In the default 737-400, I'm not sure how it works, but you should be able to
turn on the autothrottle as you sit on the runway and set a speed or something
and then engage it, and it should bring you up to take-off thrust.

On the 737-800 from PMDG, which is much more faithful to real life, you
configure your desired take-off speed (a bit above Vr, or whatever you prefer)
on the speed selector, make sure the FD and autothrottle are enabled, then
press the TOGA switch to start. For convenience, as I've said, PMDG puts a
hot spot on the MCP that you can click to do this (in reality, it's on the
throttle levers, but they are awkward to get to when you're taking off on the
sim).

after tower tells you to go around.

Or when you decide to go around on your own. TOGA then puts the aircraft in a
go-around configuration that varies somewhat by model, and it continues until
you override it. The idea is to spare you some of the details of the
go-around procedure, in order to enhance safety.

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Mxsmanic wrote in
:

capt writes:

when I press F2 the reverse thrusters won't engage. I'ts a gitch in
the operatin' system I'm sure, cause I tried it in 2 of them, with
results the same

Hmm. I think F2 is the standard for reducing thrust (and reversing
thrust).

I've seen it in the 737-400 on the throttle panel, so do you have to
put the autopilot with altitude set on to use it

In the default 737-400, I'm not sure how it works, but you should be
able to turn on the autothrottle as you sit on the runway and set a
speed or something and then engage it, and it should bring you up to
take-off thrust.

On the 737-800 from PMDG, which is much more faithful to real life,

How the **** would you know, wannabe boi?


bertie

capt wrote:
"Mxsmanic" wrote in message
...
How are you engaging reverse thrust? I just press and hold F2, which sets
reverse thrust after it sets throttles to idle.

when I press F2 the reverse thrusters won't engage. I'ts a gitch in the
operatin' system I'm sure, cause I tried it in 2 of them, with results the
same


Dumb question but is there a function lock key on your keyboard?

Bryan