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Tag: Atlas V

Boeing X-37B Launches in Second Mission for U.S. Space Force

The Boeing [NYSE: BA]-built X-37B autonomous spaceplane today launched on top of a uniquely configured United Launch Alliance Atlas V rocket.

Boeing is the prime contractor for the X-37B spaceplane and facilitates the integration of all experiments into the vehicle ensuring they receive the correct power, thermal and data services required. Boeing also works to identify future reusable platform experiment opportunities on each mission.

The X-37B’s sixth mission is the first to use a service module with additional payload capability to support a variety of experiments for multiple government partners. The mission will deploy FalconSAT-8, a small satellite developed by the U.S. Air Force Academy and sponsored by the Air Force Research Laboratory, to conduct experiments on orbit. Further, two NASA experiments will study the impact of radiation and other space effects on certain materials and seeds used to grow food. Another experiment by the Naval Research Laboratory will transform solar power into radio frequency microwave energy which could then be transmitted to the ground. In addition, the mission will test reusable space vehicle technologies.

The X-37B first launched in April 2010. Originally designed for missions of 270 days duration, the X-37B has set endurance records during each of its five previous flights. Most recently, X-37B spent 780 days on orbit before returning to Earth in October 2019.

“The X-37B has shifted the paradigm and redefined efficiency in space development, said Jim Chilton, Boeing Space and Launch senior vice president. “The rapid technology advancements enabled by the program will benefit the entire space community and influence the next generation of spacecraft design.”

The X-37B program is a partnership between the Department of the Air Force Rapid Capabilities Office and the United States Space Force. Boeing program management, engineering, test and mission support functions for the Orbital Test Vehicle (OTV) program are conducted at Boeing sites in Southern California and Florida.

Aerojet Rocketdyne RL10 Engine Marks 500th Flight with AEHF-6 Launch

CAPE CANAVERAL, Fla., March 26, 2020 (GLOBE NEWSWIRE) — The successful March 26 launch of the U.S. Space Force’s sixth and final Advanced Extremely High Frequency (AEHF) military communications satellite aboard a United Launch Alliance (ULA) Atlas V rocket marked the 500th flight of Aerojet Rocketdyne’s RL10 upper-stage engine.

The RL10, which powers the ULA Atlas V Centaur upper stage, is one of several Aerojet Rocketdyne propulsion products supporting the mission. Aerojet Rocketdyne propulsion can be found on both the rocket and the AEHF-6 satellite. Built by Lockheed Martin, the AEHF satellites provide secure, jam-proof communications, including nuclear command and control, to U.S. and allied forces.

“This launch marks an important milestone for Aerojet Rocketdyne and for the country,” said Eileen Drake, Aerojet Rocketdyne’s CEO and president. “The RL10 has supported a majority of the nation’s most important national security and scientific missions, including all of the AEHF satellites which provide communication links that are critical to our warfighters.”

The Atlas V in the 551 configuration is the most powerful vehicle in the Atlas V family, featuring five Aerojet Rocketdyne AJ-60A solid rocket strap-on motors, each generating 348,500 pounds of thrust. Designed specifically to provide extra lifting power to the Atlas V, the AJ-60A is the world’s largest monolithic solid rocket motor ever flown.

The AEHF-6 satellite, meanwhile, is outfitted with three different types of Aerojet Rocketdyne thrusters for attitude control, orbital station keeping and maneuvering. These include 12 MR-103G and six MR-106E monopropellant thrusters; and four, 5-kilowatt-class XR-5 Hall-effect electric thrusters and associated power processing systems.

The Atlas V also uses Aerojet Rocketdyne reaction control thrusters on the Centaur upper stage, as well as pressure vessels provided by ARDÉ, an Aerojet Rocketdyne subsidiary. The rocket launched from Cape Canaveral Air Force Station, Florida, and the AEHF-6 satellite is on its way to its operating location in geostationary orbit.

In addition to the Atlas V, the RL10 also powers the upper stage of ULA’s Delta IV Heavy rocket. The RL10 has helped place hundreds of military, civil and commercial satellites into Earth orbit and has sent spacecraft to explore every planet in our solar system. The RL10’s proven reliability over more than five decades of service has made it the upper-stage engine of choice for three new rockets under development, including ULA’s Vulcan Centaur, Northrop Grumman’s OmegA, and NASA’s Space Launch System.

About Aerojet Rocketdyne: Aerojet Rocketdyne, a subsidiary of Aerojet Rocketdyne Holdings, Inc. (AJRD), is a world-recognized aerospace and defense leader that provides propulsion systems and energetics to the space, missile defense and strategic systems, and tactical systems areas, in support of domestic and international customers.