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Rocket Launch: United Launch Alliance Delta IV WGS-9

Mar 18, 2017 Mar 18, 2017 - 08:18 PM Cape Canaveral Air Force Station, Space Launch Complex 37 United Launch Alliance Delta IV WGS-9


Witness liftoff of the United Launch Alliance (ULA) Delta IV rocket from Cape Canaveral Air Force Station. The Delta IV rocket will carry WGS-9, the eighth satellite of the Wideband Global SATCOM (WGS) for U.S. Air Force Space Command. WGS-9 will provide communications services to various branches of the U.S. military.


Kennedy Space Center Visitor Complex offers the closest public viewing of launches. Availability of viewing opportunities and locations is dependent upon the scheduled launch time and is subject to U.S. Air Force approval.

Launch viewing opportunities for WGS-9 are available at the main visitor complex with bleacher seating and launch commentary. The main visitor complex viewing area is included with daily admission and is located next to Space Shuttle Atlantis. Restrooms and other amenities are available at all viewing areas.

Parking traffic increases closer to launch time, so plan ahead for parking, entering the complex (including security bag search), and walking to bus boarding. Arrive early to assure your viewing spot!

Learn more about how to prepare for launch viewing as a visitor.

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Launch date, time, and viewing opportunities are subject to change. Launches can be affected by technical and mechanical issues as well as range operations and weather, either in advance or at the last minute. Learn more about our Launch Scrub Policy.


The Delta IV family of launch vehicles meets requirements to launch high-priority U.S. Air Force (USAF), National Reconnaissance Office (NRO), NASA, and commercial payloads to orbit. The Delta IV launch system is available in five configurations: the Delta IV Medium (Delta IV M), three variants of the Delta IV Medium-Plus (Delta IV M+), and the Delta IV Heavy (Delta IV H). Each configuration is comprised of a common booster core (CBC), a cryogenic upper stage and either a 4-m-diameter or 5-m-diameter payload fairing (PLF). The Delta IV RS-68A main engine, designed and manufactured by Aerojet Rocketdyne, is the largest existing hydrogen-burning engine. This engine requires 80 percent fewer parts than the Space Shuttle Main Engine, is lower risk, has reduced development and production costs and has inherently reliable operation. The Delta IV second stages rely on the RL10 propulsion system, also manufactured by Aerojet Rocketdyne, to power their second stages. The Delta IV employs the RL10B-2 with the world’s largest carbon-carbon extendible nozzle. This rocket will fly in the Medium+ (5,4) configuration.

ULA Atlas V

Rocket Launch: United Launch Alliance Delta IV WGS-9