(Survey) After touch down on runway, air brake or wheel brake?

[VRFlightGuyInPJPants]

I use air brake (F/A-18C)

[spike2071]

Both. Have to make that first taxiway.

[fikmeinshizer]

aerobraking in the falcon and eagle

speedbrakes and wheelbrakes for everything else

[SSerponi76]

Airbrake prior to touchdown
Aerobrake(*)= + Airbrake after touchdown
Wheel brake + Airbrake after nosewheel touch the ground.

(*) Aerobrake = keep the nose up after touchdown for a while: this allows use wings and fuselage as a bigger airbrake.

BTW: you don't have to flare with hornet so you can ignore Aerobrake.

[Sandhill]

I expect that IRL wheel brakes are used as necessary...negligible wear and tear to the air brakes, not so much with the rotors and pads and tires etc

[startrekmike]

I use both. Using the wheel brakes in a "1 second on, 1 second off" fashion while also having the airbrake deployed makes the most sense and is generally what would be done in real life. Not sure why one would opt for one or the other when both are there to be used.

[Maki Nishikino]

I generally have the airbrake out (though not fully) on final. On touch down I full extend it then use aerodynamic braking and then wheel brakes.

[Jel]

Airbrakes, Flaps and Control surfaces are used prior to the wheelbrakes to reduce the rapid wear of material on the brakes. That´s what i try to do in any type of aircraft, if possible.

[Troll Norris]

If possible, always preffer different than wheel braking to prevent wheel brake overheating, wearing e.t.c... For example the aerobraking or braking chute. Use wheel brakes only when you really need to.

[trooperrob]

I think IRL many aircraft have airbrakes out before landing, it may retract before older engines can spool up, so gives a much quicker response if you need to abort the landing.

[VRFlightGuyInPJPants]

As for air brake before landing, some videos claim it should not be used. But after landed, I would say no wheel brake as much as possible. Carrier landing would be another topic another time.

[startrekmike]

I am not sure where everyone is getting information about pilots not using the wheel brakes due to wear. I mean, I suppose I could see a issue if a real life F-16 or F-15 (for example) pilot were to ONLY use the wheel brakes and not use some aerobraking and speed brake but in real life, procedure does indeed dictate the use of wheel brakes as part of the overall landing/post-landing taxi process.

To put it in more practical terms. A F-16 pilot will use the speed brake during landing (as part of procedure) to ensure that they can keep the engine spooled up while still controlling their speed. At touch down, they will keep the nose up to allow the plane to aerodynamically brake as much as possible and when the nose comes down and weight is on the nosewheel, they hold back on the stick (as much as one can do so with a force sensing stick) to keep weight on the main gear (to help the wheel brakes do their job). At this point, the pilot is applying brakes in a "one second on, one second off" fashion to avoid excessive brake wear and failure while still ensuring good braking power.

[Delta Dagger]

Both. Use aerobraking and airbrakes as needed until you reach the appropriate speed to use wheelbrakes.

This, IRL, will also vary based on runway conditions. Don't have to worry about that in DCS all that much, unfortunately.

[Troll Norris]

Nguyên văn bởi startrekmike:

I am not sure where everyone is getting information about pilots not using the wheel brakes due to wear.

The modern airliners have automatic braking preset. Those uses the wheelbrake but they can preset the applied wheel brake force based on runway lenght to achieve less wheel brake wear and less overheating and less wheel wear.

In DCS e.g. for SU-25T I don't use wheel brakes when not needed because brake chute is strong enough. For WWII warbirds almost never. Runways are long enough.

[Sandhill]

The OP referenced F/A-18, and perhaps was just curious about to that. I was just thinking more generally, I'd think that the wear and tear question varies by aircraft and airfield. A-10s landing on 10000 foot runways could be a lot easier on wheel brakes than F-16s on a 5000 foot runway.
Maybe the A10 pilot can make his/her crew chief happy, or maybe it just gets done up on a schedule regardless.

[startrekmike]

Nguyên văn bởi Sandhill:

The OP referenced F/A-18, and perhaps was just curious about to that. I was just thinking more generally, I'd think that the wear and tear question varies by aircraft and airfield. A-10s landing on 10000 foot runways could be a lot easier on wheel brakes than F-16s on a 5000 foot runway.
Maybe the A10 pilot can make his/her crew chief happy, or maybe it just gets done up on a schedule regardless.

Having been a C-130 crew chief, brakes are just part of normal maintenance. If they are at a certain point, you swap them out without even really thinking about it. Pilots are expected to land properly and are not expected to agonize over brake life.