IAC Naples: Delta IV Heavy had centre body heating issue at Vandenberg

by | Oct 8, 2012 | commercial launch services, Spaceport | 0 comments

It has been revealed in a presentation at the International Astronautical Congress by Michael Berglund of the United Launch Allance that unexpectedly high temperature readings were recorded on the centrebody soon after ignition the NRO L-49 flight of the Delta IV Heavy vehicle.  The flight took place on 20 February 2011 from the Vandenberg launch site in California, USA.  The flight was the first time that the rocket had flown from the Western Test Range.   All previous Delta IV Heavy flights had occured from Cape Canaveral in Florida.   

The temperature readings exceeded modelling predictions.  Part of the extra heating was thought due to the splitter flame duct configuration (which split the flow into north and south ducts) at the Vandenberg launch pad rather than the single flame duct configuration at Cape Canaveral.  After research, it was decided to use a staggered engine start for the three RS-68 engines, rather than having them fire all at once.  If this works at Vandenberg, then the technique will also be applied at Cape Canaveral where high centre body heading is also apparent. 

About Seradata

Seradata produces the renowned Seradata database. Trusted by over 100 of the world’s leading Space organisations, Seradata is a fully queryable database used for market analysis, failure/risk assessment, spectrum analysis and space situational awareness (SSA).

For more information go to https://www.seradata.com/product/

Related Articles

Categories

Archives

Tags

nasaspacexecoreviewsissesaArianespacevideochinaFalcon 9v1.2FT Block 525virgin galacticULAfalcon 9evaRoscosmosspacewalkDGAaviation weekBlue OriginInternational Space StationaresIGTsoyuzRocket LabBeidouawardsStarlinkspaceAirbus DSboeingSatellite broadcastingrussiamoonOneWebISROCargo Return VehiclemarsblogresearchspaceshiptwojaxaorionmarsimpactdelayhyperbolaEutelsatdemocratrocketlunarhypertextobamagoogle lunar prizelaunchVegathales alenia spaceSESconstellationtourismbarack obamafiguresnorthspaceflightIntelsatnode 2fundedRaymond Lygo2009Lockheed MartinExpress MD-2Elon MuskAtlas Vromess2dassault aviationaviationLucy2008wk2sstlukradiosuborbitaltestmissiledocking portexplorationAriane 5 ECAVirgin OrbitinternetSLSLong March 2D/2ElectronNorthrop GrummanChina Manned Space Engineeringsts-122Ariane 5missile defensenewspapercotsgalileospace tourismflight2010Long March 4CspaceportExpress AMU 1buildspace stationaltairsoyuz 2-1aProton Minternational astronautical congressshuttlespace shuttleAriane 6scaled compositesIntelsat 23European Space AgencyLauncherOneCosmoshanleybudgetrulesnew yorkatvVietnamshenzhoucongressMojaveboldennew shepardLong March 2CInmarsatOrbital ATKcnesiaclunar landerGuiana Space CenterApollolawsUS Air ForceSpace Systems/LoralUK Space AgencyLong March 4BKuaizhou 1AkscILSprotondarpaTalulah RileyElectron KSFalcon 9v1.2 Block 5Vega CNorth KoreaeuSkylonAstriumpicturebaseusaastronautdragonlanderfiveeventTelesatSSLAprilSNC50thinterviewLong MarchSea LaunchfalconWednesdaycustomerlinkatlantissuccessor

Stay Informed with Seradata

Stay informed on the latest news, insights, and more from Seradata by signing up for our newsletter.