Autobrakes

[flyboy 28]

Not sure if this goes here or Flight School, but I just had a question about autobrakes. I was flying the 747 around in FS and I noticed them.. What are they and what do they do?

     

Thanks,
James

[Craig.]

its the automatic wheel brakes.
RTO is for a rejected take off and is set before TO.
The other numbers are for landing and each number is a differant level of braking depending on runway length and conditions.

[Theis]

And i guess RTO is the most powerful, right?

[SkyNoz]

And i guess RTO is the most powerful, right?

Rejected, Takeoff etc.

The auto-brake is used for landing but can be used for a emergency takeoff to stop. On takeoff you would set for RTO.

Then for landing you can set on any level you want 1 being the lowest braking amount, all the way to "MAX AUTO"! These setting are set before landing. This alows you to not need to press . or whatever you have set for braking, they automatically come on when you touchdown!

[expat]

Rejected, Takeoff etc.

The auto-brake is used for landing but can be used for a emergency takeoff to stop. On takeoff you would set for RTO.

Then for landing you can set on any level you want 1 being the lowest braking amount, all the way to "MAX AUTO"! These setting are set before landing. This alows you to not need to press . or whatever you have set for braking, they automatically come on when you touchdown!

Bearing in mind this is the "real aviation" forum, could anyone show me where the "." button in any aircraft that operates the breaks?

Matt

[SkyNoz]

Bearing in mind this is the "real aviation" forum, could anyone show me where the "." button in any aircraft that operates the breaks?

Matt

.. Rudder pedals operate the brakes (push on both and you stop), along with auto brakes for before takeoff and before landing procedures.

[Nexus]

.. Rudder pedals operate the brakes (push on both and you stop), along with auto brakes for before takeoff and before landing procedures.

I think SkyNoz isn't aware of the issue that "the-ex-pat" is infact a real 737 mechanic and probably knows more about autobraking than anyone else on this forum  ;D

Manual braking is always stronger than autobraking and it will override the autobrake during the landing roll.
RTO will kick in when you retard the throttles during the TO roll and you are above 90  knots

Autobrakes are wheelbrakes that are monitored by a system that maintains a specific brake pressure.
It senses deceleration rate and applies brake pressure according to selected rate on the panel. (1,2.3, MAX etc)

The system should be used for all landings if it's available. As the main gear touches down, the              autobrakes are activated causing the nose of the aircraft to pitch down. The front wheels can be eased onto the runway by small elevator input. Someting FS2004 does not depict well at all. Manual braking is usually used after 80kts.

Boeing 737 autobrakes:  
Autobrake 1 = 4ft/sec decel rate  
2= 5ft/second decel rate  
3= 7.2 ft/second decel rate  
Max= 14ft/ sec above 80kts  
12ft/sec below 80kts  
RTO= decel rate not controlled.

[C]

Bearing in mind this is the "real aviation" forum, could anyone show me where the "." button in any aircraft that operates the breaks?

Matt

I've always thought a "p" for pause would be most useful in real cockpits... Needed it on more than one occasion... "Shift Z" would be useful too...

[Ecko]

I've always thought a "p" for pause would be most useful in real cockpits... Needed it on more than one occasion... "Shift Z" would be useful too...

Yeah, it sucks not knowing what kinda framerates you're flying at..

[C]

Yeah, it sucks not knowing what kinda framerates you're flying at..

Its nicer for actually knowing your G and Speed and Altitude without having to look at 3 different gauges!

[Ecko]

Its nicer for actually knowing your G and Speed and Altitude without having to look at 3 different gauges!

Well some of us don't have that problem of knowing how many G's we're pulling!!


It would be very nice to able to press "B" to set the altimeter, though.

[expat]

Boeing 737 autobrakes:  
Autobrake 1 = 4ft/sec decel rate  
2= 5ft/second decel rate  
3= 7.2 ft/second decel rate  
Max= 14ft/ sec above 80kts  
12ft/sec below 80kts  
RTO= decel rate not controlled.

You beat me to it. 02:00 in the am and time for a cup of coffee. I had just opened Bill Bulfers Cockpit Companion to that very page......and closed it again.

Matt

[Nexus]

You beat me to it. 02:00 in the am and time for a cup of coffee. I had just opened Bill Bulfers Cockpit Companion to that very page......and closed it again.

Matt

Actually I had a pretty nice headstart since I just  copied an older post of mine regarding autobrakes usage.  ;D

I feel like the Roadrunner. Beep Beep Vroooom!

[expat]

Actually I had a pretty nice headstart since I just  copied an older post of mine regarding autobrakes usage.  ;D

I feel like the Roadrunner. Beep Beep Vroooom!

Have you got ACME's number please. I need a product catalog

Sincerley
Mr W Coyote