Flight 188 - uppsagd
Flight 188 - uppsagd Flight 188 - uppsagd
Data relating to Flight 188FLUID SYSTEMSH 0 - 6 min 30sTermination of topping up (LOX and LH 2 )LOX and LH 2 topped up to flight valueLaunch pad safety flood valves openedELECTRICAL SYSTEMSH 0 - 6 min 30sArming of pyrotechnic line safety barriersH 0 - 6 min: Isolation of the ESC-A helium sphereH 0 - 4 minFlight pressurization of EPC tanksIsolation of tanks and start of EPC ground/OBinterface umbilical circuit flushingTermination of ESC-A LOX topping upESC-A LOX transition to flight pressureH 0 - 3 min 40: termination of ESC-A LH2 topping upH 0 - 3 min10: ESC-A LH 2 transition to flight pressureH 0 - 2 min: Vulcain bleeder valves openedEngine ground chill-down valve closedH 0 - 1min 5sTermination of ESC-A tank pressurization from theground, and start of ESC-A valve plate sealtightnesscheckoutH 0 - 30sVerification of ground/OB umbilical circuitflushingEPC flue flood valves openedH 0 - 16.5 sPressurization of POGO corrector systemVentilation of fairing POP and VEB POEconnectors and EPC shut downH 0 - 3 min 30 : Calculation of ground H 0 andverification that the second OBC has switched tothe observer modeH 0 - 3 minH 0 loaded in the 2 OBCsH 0 loaded in OBCs checked against ground H 0H 0 - 2 min 30s: Electrical heating of EPC and VEBbatteries, and electrical heating of the Vulcain 2ignition system shut downH 0 - 1 min 50sPre-deflection of the HM7B nozzleH 0 - 1min 5sLauncher electrical power supply switched fromground to OBH 0 - 37sStart-up of ignition sequence automatic controlsystemStart-up of OB measurement recordersArming of pyrotechnic line electric safety barriersH 0 - 22sActivation of launcher lower stage attitude controlsystemsAuthorization for switchover to OBC controlH 0 - 12 s Flood valves opening command30
Data relating to Flight 188IRREVERSIBLE SEQUENCEH 0 - 6sArming and ignition of AMEFs to burn hydrogen run-off during chill-down of the combustionchamber on Vulcain ignitionValve plate and cryogenic arm retraction commandsH 0 - 5.5sGround information communication bus control switched to OBCIGNITION SEQUENCEH 0 - 3sCheckout of computer statusSwitchover of inertial guidance systems to flight modeHelium pressurization activatedLOX and LH 2 pressures monitoredNavigation, guidance and attitude control functions activatedH 0 - 2.5sVerification of HM7B nozzle deflectionH 0 - 1.4sEngine flushing valve closedH 0 - 0.2sVerification of acquisition of the “cryogenic arms retracted” report by the OBC at the latestmomentH 0 → H 0 + 6.65sVulcain engine ignition and verification of its correct operation(H 0 +1s corresponds to opening of the hydrogen chamber valve)H 0 + 6.9sEnd of Vulcain engine checkoutH 0 + 7,05sIgnition of the EAPs31
- Page 1: KOUROUMay 2009ARIANE 5Data relating
- Page 4 and 5: Data relating to Flight 1882. Launc
- Page 6 and 7: Data relating to Flight 188Compared
- Page 8 and 9: Data relating to Flight 188Nose fai
- Page 10 and 11: Data relating to Flight 1883. Missi
- Page 12 and 13: Data relating to Flight 188This is
- Page 14 and 15: Data relating to Flight 18814
- Page 16 and 17: Data relating to Flight 188The foll
- Page 18 and 19: Data relating to Flight 188LAGRANGE
- Page 20 and 21: Data relating to Flight 188Herschel
- Page 22 and 23: Data relating to Flight 188The PLAN
- Page 24 and 25: Data relating to Flight 1885. Launc
- Page 26 and 27: Data relating to Flight 188Kourou:
- Page 28 and 29: Data relating to Flight 1887. Final
- Page 32 and 33: Data relating to Flight 1888. Fligh
- Page 34 and 35: Data relating to Flight 1889. EADS
Data relating to <strong>Flight</strong> <strong>188</strong>IRREVERSIBLE SEQUENCEH 0 - 6sArming and ignition of AMEFs to burn hydrogen run-off during chill-down of the combustionchamber on Vulcain ignitionValve plate and cryogenic arm retraction commandsH 0 - 5.5sGround information communication bus control switched to OBCIGNITION SEQUENCEH 0 - 3sCheckout of computer statusSwitchover of inertial guidance systems to flight modeHelium pressurization activatedLOX and LH 2 pressures monitoredNavigation, guidance and attitude control functions activatedH 0 - 2.5sVerification of HM7B nozzle deflectionH 0 - 1.4sEngine flushing valve closedH 0 - 0.2sVerification of acquisition of the “cryogenic arms retracted” report by the OBC at the latestmomentH 0 → H 0 + 6.65sVulcain engine ignition and verification of its correct operation(H 0 +1s corresponds to opening of the hydrogen chamber valve)H 0 + 6.9sEnd of Vulcain engine checkoutH 0 + 7,05sIgnition of the EAPs31
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