A combination ladder can be converted from a straight ladder to an a-frame configuration.
A Combination Ladder is a portable ladder capable of being used as a Stepladder, or as a Single or Extension Ladder. It may also be capable of being used as a Trestle Ladder or as a Stairwell Ladder. Its components may be used as Single Ladders.
A combination ladder is a conjunction of the pilot ladder and accommodation ladder. This is a common arrangement found on vessels with high freeboard. The accommodation ladder is rigged in such a way that it leads aft of the vessel and has a slope angle of not more than 55 degrees.
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