We train/discuss for a lot of things where if it happens, you are having a bad day.
Oh yes, that we do. But how much formal training (as in hands on in the sim) is given on aircraft handling on icy/slippery runways? Have you ever tried differential braking whilst holding full rudder deflection on your type?
On the contrary. Expect a huge change if you:
1) "In all cases, brakes and reverse should be applied smoothly. If there is any concern with directional controllability then reduce or cancel reverse as necessary and reduce braking until control is regained. Then smoothly re-apply brakes and reverse if necessary." (Safety First Magazine - issue 12 page 11)
2) "As required, or when taking over from autobrake, applying brakes normally with a steady pressure; • For directional control, using rudder pedals and differential braking, as required (i.e., not using nose-wheel-steering tiller); • If differential braking is necessary, applying pedal braking on the required side and releasing completely the pedal action on the opposite side; and, • After reaching taxi speed, using nose-wheel steering with care." (Getting to Grips with Approach and Landings accidents reduction - Page 19)
Or carry on with full reverse and full brakes whilst you push yourself off the side of the runway.
All good advice and SOP on many types, however in the situation where you are sliding off the runway at <60kts due wind, it is because the side loading on the airframe exceeds the lateral grip you can generate. As this indicates a *very* low friction surface, I would not hold out for a “huge change” under those circumstances, no matter what you do with the brakes. It’s like encountering an icy corner in a car at too fast a speed: brakes on/off, steering left/right, power on/off... you’re going to leave the road and the only choice is the direction you’ll be facing when it happens.
The real answer is to do everything possible not to expose yourself to these conditions in the first place and thinking you have “this one neat trick that icy runways hate!!!” up your sleeve may encourage riskier behaviour. Yes, you might save the day having been encouraged by inaccurate reporting into using an inappropriate runway but it would be foolish to expect that the above instructions are a 100% guaranteed get out from ground-based LOC. If you find yourself deploying any of these techniques, which are perfectly valid, I agree, you are in the last stage of incident/accident mitigation.