A lift device comprises a mounting arm that includes a mounting member that is configured to be mounted to a structure. The lift device includes a vertical member having a lower end and an upper end spaced from the lower end along a first axis that is aligned with the vertical direction. A lifting boom includes a first end coupled to the upper end of the vertical member and the second end is configured to be secured to the object. The lift device includes a first actuation system disposed along the vertical member and configured to cause the lifting boom to rotate about the first axis. The lift device also includes a second actuation system configured to cause the lifting boom to rotate about a second axis that is perpendicular to the first axis.

A portable crane formed of composite members. A composite mast is coupled to a composite boom. A boom end housing removably couples at a top of the mast and includes an enclosure. A first end of the boom couples within the boom end housing. A boom pivot couples to the boom end housing and couples the boom to the mast. An angle adjuster releasably secures the boom at a desired angle relative to the mast. In implementations an end cap is included at a second end of the boom, coupled to a sheave with a pin, the end cap covering a terminal end of a second end of the boom and extending along both sides of a slot in an upper surface of the second end and along a portion of a first side of the second end and along a portion of a second side of the second end.