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Aerojet Rocketdyne engines support delivery to the ISS



Maneuvering engines supplied by Aerojet Rocketdyne accompanied Orbital ATK's spaceship Cygnus for the ninth successful mooring to the International Space Station May 24, 1965.

The Cygnus hit a Regionaler three days after launching aboard an Orbital ATK Antares missile from the Mid-Atlantic Spaceport on Wallops Island, Virginia. Aerojet Rocketdyne has a Redmond Operations Facility

Each Cygnus is equipped with 32 Aerojet Rocketdyne MR-106M hydrazine engines, 20 on the service module and 12 on the loader module. These engines, each producing seven pounds of thrust, provide a storage control as the vehicle moves itself in orbit to dock with the station.

"Cygnus is another example of the versatility of our MR-1

06 engines, whose variants use launchers, orbiting satellites and interplanetary probes," said Eileen Drake, CEO and President of Aerojet Rocketdyne in a press release. "With more than 3,000 of our steered MR-106 engines, this engine has become an industrial workhorse for reaction control drives."

The Cygnus also uses a single helium pressure tank supplied by Aerojet Rocketdynes ARDÉ subsidiary. The helium tank is used to pressurize the fuel tanks that feed propellants into the Aerojet Rocketdyne engines.

The Cygnus spacecraft typically stays at the space station for a few weeks, during which time supplies are dumped and the resulting volume is refilled with station denied. The spacecraft is then released from the station and directed back into the atmosphere, burning with re-entry along with its contents.

Aerojet Rocketdyne, a subsidiary of Aerojet Rocketdyne Holdings, Inc. (NYSE: AJRD), is an innovative company that delivers solutions that add value to its aerospace and defense clients. The Company is a world-renowned aerospace and defense leader providing space propulsion systems and power, missile defense and strategic systems, tactical systems and defense equipment to support national and international markets. For more information about Aerojet Rocketdyne, visit their websites at www.Rocket.com and www.AerojetRocketdyne.com.

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