Unison ignition system lights off Atlas V engine

NBAA Convention News » 2002
June 30, 2008, 11:38 AM

According to Unison Industries, its new dual direct spark ignition system (DDSI) successfully lit the Pratt & Whitney RL 10A-4-2 engine on the Lockheed Martin Atlas V Expendable Launch Vehicle’s Centaur upper stage. Launching from Cape Canaveral on August 21, the Centaur’s first RL 10A-4-2 main engine started after the separation of the first stage after just four-and-a-half minutes. Then, 24 min after liftoff, the DDSI re-ignited the engine for a four-min, 14-sec burn that propelled the Hot Bird 6 satellite to a supersynchronous orbit around the earth.

Share this...

Please Register

In order to leave comments you will now need to be a registered user. This change in policy is to protect our site from an increased number of spam comments. Additionally, in the near future you will be able to better manage your AIN subscriptions via this registration system. If you already have an account, click here to log in. Otherwise, click here to register.