Science
Hot Fire Abort safely keeps Delta IV Heavy, NROL-44 on the ground – SpaceFlight Insider
A hot fire abort was called at T-3 seconds, after ignition of engines aboard the Delta IV Heavy but prior to the vehicle being released for flight. The vehicle was quickly safed and made secure, as launch teams verified the status of all resources and the sta…
Smoke dissipates from SLC 37B following the hot-fire abort during the August 29, 2020 launch attempt of the NROL-44 mission. Photo: Matt Haskell, SpaceFlight Insider
A hot fire abort was called at T-3 seconds, after ignition of engines aboard the Delta IV Heavy but prior to the vehicle being released for flight. The vehicle was quickly safed and made secure, as launch teams verified the status of all resources and the state of affairs at the launch pad itself.
The abort occurred at 3:28 a.m. E…
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