Hello, I just discovert that only pressing F2 for a short whyle will not give full reverse thrust, but only that from the engines at idle. To test I did two ils ladings with the same settings (ias140, flap30, spoiler auto,auto brake1, same rnw at eham, no weather) but made one lading with full reverse thrust and a nother with only idle. I found that there was totaly no diverence in my stopping distance. (stopping reverse thrust at 70 knts and then letting auto brakes stop de airplane.) I wonder what other sim pilots found considering the above?Thanks for your replay / test flight's. Maikel Rozemeijer.

That's because the auto brakes will decal at a fixed rate for what is selected (1,2,3,max).Adding reverse thrust will just lighten the load from the brakes, the stopping distance will be the same.Dan.

That's because the auto brakes will decal at a fixed rate for what is selected (1,2,3,max). Adding reverse thrust will just lighten the load from the brakes, the stopping distance will be the same. Dan.

Exactly, while keeping in mind that if the braking action is poor (wet or frozen runway), the ABS will have a tough time maintaining grip. In those conditions, using reverse thrust and spoilers (aerodynamic braking) alongside the autobrakes will most likely reduce braking distance.

I did read other post before posting mine, but did not think them through all that will I can read now. Thanks for your replay's. So probaly the stopping distance will be shorter when I set abs on 3... that will be my next flight then. :) Again a +1 for pmdg. Maikel Rozemeijer. Edit: Just did a new test with abs at 3, I now did stop a little earlyer... about two stripes on the middle line from the runway. Can also play with the idea from lodestar, thanks for sharing it here.

Try to not use brakes, only reverse trust above 80 knots. Then, brake manually, stop reverse trust at 70knots(still brake). Try thisway with reverses at idle, and try again with full reverse trust. This will be the real test. I would try, but I don't have time right nowI mean, try to not use autobrake

Try to not use brakes, only reverse trust above 80 knots. Then, brake manually, stop reverse trust at 70knots(still brake). Try thisway with reverses at idle, and try again with full reverse trust. This will be the real test. I would try, but I don't have time right now I mean, try to not use autobrake

I think not even Edwards AFB has a runway long enough to do that, especially since reverse thrust effectiveness decreases with airspeed.

I just did two identical landings as I did before but now only used spoilers and at the first 100% abs and the second only idle abs. At the first I just needed a little more runway then when with my first landings with abs1. At the second I needed the whole 10812 ft of runway and a little more too stop. (without any abs) So probaly all is ok and I just needed too use my brain from the start. ;-) _There is_ a diverence between abs at idle or at 100% in the ngx sim. Great. :-) Maikel Rozemeijer

I think not even Edwards AFB has a runway long enough to do that, especially since reverse thrust effectiveness decreases with airspeed.

Even 747s sometimes land with no autobrakes in good conditions and with runways over 10k feet using just reverse thrust. This is useful if aircraft are required to roll out to the end of the runway, and it saves brake pad wear. A 737 should be able to do that no problem on runways over 10,000 ft. long.

I think not even Edwards AFB has a runway long enough to do that, especially since reverse thrust effectiveness decreases with airspeed.

Situation & aircraft dependent at AA. Normally the Captain has the option to use/not use autobrakes. Most fleet type procedures _recommend_ use of autobrakes, but under normal situations the Captain has the last word. OTOH, some situations AA requires use of autobrakes and in some of those, AA mandates a specific minimum setting. MD90 had none so that made things simple. I read in some forum that some airlines mandate the use of autobrakes for all landings(i'm not shure for this).But I'm pretty sure about this:For example, there is some of MD80 series that don't have autobrakes, and landing technique is the following: after landing you apply full reverse trust(no brakes)until 80knots, then apply brakes, at 60knots cut off reverse trust.

I was just joking, people. With 40.000ft of runway you'd stop from friction between tires and ground alone :(

FWIW, most RW airlines prefer the pilots to deploy the reversers in idle unless above idle is required. All stopping distance criteria for aircraft certification is based on using brakes alone, with zero use of reverse thrust. It actually costs more to the airlines to real with the reverse cycles than it does to replace brake pads.