FALCON USER’S GUIDE 5 INTERFACES MECHANICAL INTERFACES 5.1.1 PAYLOAD ADAPTERS AND SEPARATION SYSTEMS The standard mechanical interface between SpaceX-provided Falcon launch vehicle hardware and customer-provided hardware is a 1575-mm (62.01 in.) diameter bolted interface, at the forward end of the launch vehicle payload attach fitting. This interface is designed to conform to the EELV 1575-mm (62.01 in.) diameter medium payload class mechanical interface defined in the EELV Standard Interface Specification Rev. C June 2017. For customers with 937-mm or 1194-mm (36.89 in. or 47.01 in.) clampband interface requirements, SpaceX will either provide and integrate a payload adapter and clampband separation system or will integrate an adapter and separation system chosen and provided by the customer, as a standard service. For customers with alternative interface requirements, SpaceX can procure almost any industry-standard adapter system as a nonstandard service. SpaceX has experience integrating numerous commercially available and internally developed adapters and separation systems. Falcon 9 and Falcon Heavy are compatible with adapter and separation system products offered by RUAG, CASA, Planetary Systems Corporation and other industry-leading providers. 5.1.2 PAYLOAD FAIRING The SpaceX fairing is 5.2 m (17.2 ft) in outer diameter and 13.2 m (43.5 ft) high overall. Fairing structures and dynamics result in a payload dynamic envelope with a maximum diameter of 4.6 m (15.1 ft) and a maximum height of 11 m (36.1 ft). The base of the payload dynamic envelope is defined by the standard 1575-mm interface plane at the forward end of the standard payload attach fitting (Section 5.1.1); any payload adapters required (e.g., to achieve a 937-mm or 1194- mm (36.89 in. or 47.01 in.) interface) will utilize a portion of the payload dynamic envelope. The bolded dimensions in Figure 5-1 denote the standard payload dynamic interface. The non-bolded dimensions denote potential additional volume as a nonstandard service. © Space Exploration Technologies Corp. All rights reserved. 36