Davit arm for portable, telescoping fall arrest post. Optional davit mast assembles easily to post, providing simple and efficient rescue and work support capabilities. An ideal confined space support structure for one or more mechanical devices and adjusts up to 34" offset. Built-in primary and secondary pulleys route lifelines of two mechanical devices for smooth, efficient rescue and work support operations. Simple detent style bracket offers extremely fast and safe mechanical device installation. Detent and knob style adjustment allows user to adjust system quickly and easily to site configuration without tools and collapse for transport and storage. Built-in secondary fall arrest anchor point allows use of back-up or secondary fall protection device such as a self retracting lifeline when required. Includes cable stabilizer strap anchors the top of the davit arm back to the post for additional strength and added peace of mind. Our davit systems are a fraction of the weight when compared to steel and offer quick and easy transport, set-up, dismantle and storage. Various winch and three-way self retracting lifeline configurations and options are available to suit most site requirements for added peace of mind.