Ron, I think this question could apply to all kinds of retractable gear airplanes. I flew Citation Xs and Gulfstream Vs and a good variety in between. Our policy during slushy runway takeoffs was to delay gear retraction somewhat so that the slipstream could strip away the slush and moisture thrown up during the takeoff roll. Sometimes we would also cycle the gear once or twice during climb out. I never experienced a problem with frozen gear, brakes or gear doors. Dick
