I have a 89' Catalina 25 Wing keel (2.9 ft draft) on a Road King trailer with V shaped axels, i.e. very little clearance between bottom of keel and road surface, maybe 16 inches. With mask down across pulpits, I measured 11 ft 7 inches. Remove mask may get you 10 inches. Deflate tires, another 2 inches. It will very close, but I don't think you will be able to make 10 ft.