Sunday, May 28, 2017

SpaceX Targets June 1 Launch of Space Station Cargo Delivery Mission for NASA

New post on Universe Today

SpaceX Targets June 1 Launch of Space Station Cargo Delivery Mission for NASA

by Ken Kremer

SpaceX conducted a successful static fire test of the Falcon 9 rocket on May 28, 2017 at Launch Complex 39A on NASA's Kennedy Space Center, Fl. Liftoff of the uncrewed Dragon resupply mission to the ISS is scheduled for June 1, 2017. Credit: SpaceX

SpaceX is targeting a June 1 blastoff for the firms next cargo delivery mission to the International Space Station (ISS) for NASA following today's (May 28) successful test firing of the Falcon 9 booster's main engines.

Liftoff of the SpaceX Falcon 9 rocket carrying the unmanned Dragon cargo freighter from seaside pad 39A at NASA's Kennedy Space Center in Florida is slated for 5:55 p.m. EDT Thursday, June 1.

"Static fire test of Falcon 9 complete," SpaceX confirmed via Twitter soon after completion of the test.

"Targeting June 1 launch from historic Pad 39A for Dragon's next resupply mission to the @Space_Station"

The Dragon resupply ship dubbed Dragon CRS-11 counts as SpaceX's eleventh contracted commercial resupply services (CRS) mission to the International Space Station for NASA.

It is carrying almost 6,000 pounds of science research, crew supplies and hardware to the orbiting laboratory in support of Expedition 52 and 53 crew members. The unpressurized trunk of the spacecraft also will transport solar panels, tools for Earth-observation and equipment to study neutron stars.

Sunday's brief static fire test involved a successful hot fire ignition test of the two stage rocket and all nine first stage Merlin 1D engines Sunday afternoon while the rocket was firmly held down at the pad.

The hold down engine test is routinely conducted to confirm the readiness of the engines and rocket for flight.

The nine Merlin 1D engines generate 1.7 million pounds of thrust for approximately three seconds.

The test simulates all the conditions of flight except liftoff, and involves loading of the densified liquid oxygen and RP-1 propellants into the first and second stages starting about 70 minutes prior to ignition.
The engine test was run without the Dragon cargo ship bolted on top.

Watch for Ken's onsite CRS-10 mission reports direct from the Kennedy Space Center and Cape Canaveral Air Force Station, Florida.
Stay tuned here for Ken's continuing Earth and Planetary science and human spaceflight news.
Ken Kremer

Ken Kremer | May 28, 2017 at 11:58 pm | URL: http://wp.me/p1CHIY-zjG
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