Given the balance of an airliner on the ground, steering sensitivity when braking & the consequences of losing control, 0.4g is still pretty quick.

Actually this first most important factor why airliner's wheel brakes are in such big disadvantage comparing to car's brakes is the sheer ratio of weight to brake area.

Actually this first most important factor why airliner's wheel brakes are in such big disadvantage comparing to car's brakes is the sheer ratio of weight to brake area.

Plus the braking point is situated behind the CofG. Not so much of an issue in the dry, but definately in the wet.

I wonder what an average car makes? Is an RTO worse than a hard braking in my car? Oh and BTW, speaking of RTOs, does RTO (the autobrake setting I mean) in fact apply just the maximum brake pressure it's got, or is there also some sort of predetermined decel rate? I'd suspect the former but I don't know for sure off the top of my mind.

RTO=full brake pressure available which is 3000psi. Its the hardest barking you can do. Some may argue the MAX manual is harder BUT the system will only allow 3000 psi so no matter how hard you push those brakes manually, 3000 is the most you will get. RTO has been known to create such heat that the fuse plugs melt. JackColwill

Thanks guys. Well 4G longitudinally, that's pretty sick. So going 300 kph it would be able to stop in a matter of two or three seconds? I wish my car would accelerate a tenth of what those rockets brake haha...Jack, thanks as well. I certainly heard about melted fuse plugs during RTO, lotta energy involved there.

Plus the braking point is situated behind the CofG. Not so much of an issue in the dry, but definately in the wet.

That's why the front tires on an auto do about 60-70% of the braking. The weight shift compresses the front suspension, more downforce = more traction. MLG on an airliner doesn't have that advantage...