Sunday, April 21, 2019

SpaceX Crew Dragon Suffers Anomaly During Engine Test Sending Smoke Billowing

Super Draco static engine test firing. Credit: SpaceX
Ken Kremer -- SpaceUpClose.com & RocketSTEM – 20 April 2019

KENNEDY SPACE CENTER, FL  – A SpaceX Crew Dragon test vehicle suffered a significant anomaly failure during static fire engine testing this afternoon, Saturday, April 20, at Landing Zone 1 that sent orange colored smoke rising and billowing into the skies that was visible for many miles around the Cape Canaveral region. 

The incident was first reported by Florida Today late this afternoon and confirmed to Space UpClose by both the 45th Space Wing of the US Air Force and SpaceX a short time later. 

F
ortunately, there were no injuries according to the Air Force during today’s incident which took place during a static test firing sequence involving the vehicles Super Draco abort engines at Landing Zone 1 at Cape Canaveral Air Force Station in Florida. 

"On April 20, 2019, an anomaly occurred at Cape Canaveral Air Force Station during the Dragon 2 static test fire," 45th Wing Spokesperson Jim Williams told Space UpClose.

"The anomaly was contained and there were no injuries."


Whether or not an explosion occurred is not known at this time based on the official statements released. 
This tweet from Florida Today shows a photo of the billowing smoke taken from the beach with sunbathers - taken by staff photographer Craig Bailey

https://twitter.com/EmreKelly/status/1119721013166657536

SpaceX anomaly April 20, 2019. Credit: Craig Bailey
The commercial Crew Dragon is being developed under a contract awarded to SpaceX by NASA back in 2014. 
Up Close view of SpaceX Crew Dragon spacecraft bolted atop Falcon 9 rocket with Crew Access Arm astronaut walkway in position after being raised vertical at NASA’s historic Launch Complex 39A in Florida on March 1, 2019 ahead of scheduled maiden liftoff March 2 at 2:49 a.m. EST on critical unpiloted test flight on Demo-1 mission. This will lead to return human spaceflight capabilities to the United States on Demo-2 mission with 2 NASA astronauts later this year.  Credit: Ken Kremer/kenkremer.com/spaceupclose.com

The Super Draco abort engines are intended to save the astronauts lives in case of a catastrophic rocket emergency by quickly pulling the crew Dragon vehicle away in a split second. 

The SpaceX Crew Dragon was intended to launch American astronauts to the International Space Station (ISS) from US soil later this year- for the first time since NASA’s space shuttles were retired in 2011. 

Those plans by NASA and SpaceX may now be delayed, but the exact impact is unclear at this time pending the results of an investigation.

“Earlier today, SpaceX conducted a series of engine tests on a Crew Dragon test vehicle on our test stand at Landing Zone 1 in Cape Canaveral, Florida,” a SpaceX spokesperson told Space UpClose. 

"The initial tests completed successfully but the final test resulted in an anomaly on the test stand." 

“Ensuring that our systems meet rigorous safety standards and detecting anomalies like this prior to flight are the main reasons why we test. Our teams are investigating and working closely with our NASA partners.”

Nevertheless this is a significant setback that will almost certainly delay upcoming test flights of the Crew Dragon to the ISS as NASA and SpaceX investigate to determine the cause of the anomaly and instituted changes based on the results of the investigation.  

Later this evening NASA issued the following  statement from NASA Administrator Jim Bridenstine on the Sat., April 20 SpaceX Static Fire Test: 


"The NASA and SpaceX teams are assessing the anomaly that occurred today during a part of the Dragon Super Draco Static Fire Test at SpaceX Landing Zone 1 in Florida. This is why we test. We will learn, make the necessary adjustments and safely move forward with our Commercial Crew Program." 

"NASA has been notified about the results of the @SpaceX Static Fire Test and the anomaly that occurred during the final test. We will work closely to ensure we safely move forward with our Commercial Crew Program.”


The Super Dracos are fueled by hypergolic propellants hydrazine and nitrogen tetroxide propellants  which ignite when mixed together.


Altogether there are 8 Super Dracos ringing the Crew Dragon that produce up to 16,000 pounds of thrust and are designed to restart multiple times as needed in an emergency.


The exact identity of the Crew Dragon test vehicle is not known. It could possibly be the Demo-1 Crew Dragon that recently carried out a flawless unpiloted test flight to the ISS and back in March.


Or it could be another test vehicle or boilerplate capsule.

The Demo-1 vehicle was splashed down safely in the Atlantic Ocean at the end of the mission and was retrieved and returned to Port Canaveral. 
Scorched SpaceX Crew Dragon capsule on deck of GO Searcher recovery ship arrives into Port Canaveral, FL late evening March 9, 2019 some 35 hours after splashdown at 8:45 a.m. EST March 8, in the Atlantic Ocean approximately 230 miles northeast of Cape Canaveral, Florida and hoisting on deck. Credit: Ken Kremer/kenkremer.com/spaceupclose.com
Demo-1 was intended to be re-used for a critical in flight abort test, or high altitude abort test, scheduled for no earlier than June.

If Demo-1 was the test vehicle that failed today and was destroyed the consequences and delays could be rather severe. 

That abort test must be carried out successfully before the Demo-2 mission launches with 2 NASA’s astronauts aboard- namely veteran space shuttle astronauts Bob Behnken and Doug Hurley

The Demo-2 was slated for no earlier than late July but had been expected to slip to the fall even before todays anomaly.

SpaceX previously conducted a successful Pad Abort Test of a prototype Crew Dragon with the Super Dracos in May 2015.

Further details as they become known. 


Water reflection launch view as SpaceX Falcon 9 soars off Launch Complex 39A at NASA’s Kennedy Space Center in Florida at 2:49 a.m. EST, March 2, 2019 carrying the company’s first commercially-built and operated Crew Dragon spacecraft to orbit for docking with the International Space Station (ISS) - as seen from VAB roof.  Credit: Ken Kremer/kenkremer.com/spaceupclose.com

Boeing is also under contract to NASA to develop a commercial crew space taxi to ferry astronauts to the ISS.

Known as Starliner it is also slated to launch on unpiloted and piloted test missions later this year.  
Watch for Ken’s continuing onsite coverage of NASA, SpaceX, ULA, Boeing, Lockheed Martin, Northrop Grumman and more space and mission reports direct from the Kennedy Space Center, Cape Canaveral Air Force Station, Florida and Wallops Flight Facility, Virginia.
Stay tuned here for Ken's continuing Earth and Planetary science and human spaceflight news: www.kenkremer.com –www.spaceupclose.com – twitter @ken_kremer – email: ken at kenkremer.com
Dr. Kremer is a research scientist and journalist based in the KSC area, active in outreach and interviewed regularly on TV and radio about space topics.
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Ken’s photos are for sale and he is available for lectures and outreach events


1 comment:

  1. Hello,
    I have found your blog recently and think your articles about spaceflight are very interesting! Keep it up. :)
    Greetings, Tamara (Tales from Centauri)

    ReplyDelete