======Ascent checklists======

Checklists for OMS assist launches.

<note Important> **Checklists will look best at a screen resolution of 1280*1024 and above** \\ if you are using lower resolution you might see misaligned text **please** Do not try and "fix it" for the majority of users do use these screen resolution</note>

=====Pre-Launch=====
^  COMM  ^  MET  ^  Panel Section  ^  Panel  ^  procedure  ^  Panel Area & Notes  ^
^  1  |  T-01:50:00  |            |  |  | Astronauts Enter The Shuttle  |
^  2  |  T-01:40:00  |  Overhead Left Panel  |  O5  | * set Left Audio XMIT/ICOM mode to VOX/VOX \\ * Set Left Audio A/G (1 & 2) To T/R \\ * Set Left Audio A/A To T/R  \\ * Set Left Audio ICOM (A & B) To T/R  \\ * Set Left Audio (AUD) Power Switch To AUD/TONE  | Activates Commander Communications  |
^  3  |  T-01:35:00  |  Overhead Right Panel  |  O9  | * set Right Audio XMIT/ICOM mode to VOX/VOX  \\ * Set Right Audio A/G (1 & 2) To T/R  \\ * Set Right Audio A/A To T/R  \\ * Set Right Audio ICOM (A & B) To T/R  \\ * Set Right Audio (AUD) Power Switch To AUD/TONE  | Activates Pilot Communications  |
^  5  |  T-01:20:00  |  Front Left Panel  |  F6  | * Check ABORT Light (DIM/BRIGHT/DIM) For 8 Seconds | Abort Advisory Check  |
^  6  |  T-01:10:00  |    |    |  | Flight Control Confirms With Commander that \\ the Side Hatch Is Closed & Locked  |
^  7  |  T-01:05:00  |  Left Panel \\ \\ \\ Front Left panel  |  L2\\ \\ \\ F2  | * Set CABIN VENT ISOL To CLOSE \\ * Set CABIN VENT To CLOSE \\ \\ * Press MASTER ALARM | Cabin Leak Check \\ \\ \\ Cancel Master Alarm Sound  |
^  8  |  T-00:51:00  |    |    |  | Pilot Confirms IMU Alignment  |
^  9  |  T-00:50:00  |  Right Panel  |  R2  \\ \\ \\ O14  \\  O16  \\ C3  | * Check BOILER PWR (1/2/3) Are ON \\ * Check BOILER CNTLR/HTR (1/2/3) On A \\ * Set BOILER N2 Supply (1/2/3) To ON \\  * Set L OMS ENG VLV To ON \\ * Set R OMS ENG VLV To ON \\ * Set OMS ENG LEFT & RIGHT To ARM/PRESS | Confirm Boiler Power On  \\ \\  \\ Turn On OMS Engines  |
^  10  |  T-00:45:00  |  Left Panel  |  L2  | * Set CABIN VENT/VENT To OPEN | Open Cabin Vent  |
^  11  |  T-00:42:00  |  Center Panel  |  C3 \\ \\ C2  | * Set BFC CRT DISPLAY To ON \\ * Confirm BFC CRT SELECT Is At (3+1) \\ * Enter ITEM 25 EXEC **(Use Left Keypad)** | Enable Backup Flight System (BFS) And \\ Execute Computer Data Transfer To BFS \\ Copy Primary Avionics SW To BFS  |
^  12  |  T-00:36:40  |  Left Panel  \\ \\  Overhead Low Panel  |  L2 \\ \\ O1  | * Set CABIN VENT To CLOSE \\ * Set CABIN VENT ISOL To OPEN \\ * Check CABIN dP/dT Gauge For Possible Depressurization | Cabin Leak Check - Continued  |
^  13  |  T-00:33:20  |  Left Panel  |  L2  | * Set CABIN VENT ISOL To Close \\ * Check CABIN VENT Is CLOSED | Cabin Pressurization Check Complete  |
^  14  |  T-00:30:00  |  Center Panel  |  C2  | * Enter OPS 101 PRO **(Use Right Keypad)**  \\ * Enter SPEC 99 PRO **(Use Right Keypad)**  \\ * Press RESUME **(Use Right Keypad)**  | Load OPS 1 - Planned 10 Minute Hold \\ Load First Stage SW Into Primary Avionics System  |
^  15  |  T-00:29:00  |  Center Panel  |  C2  | * Enter OPS 101 PRO **(Use Left Keypad)** | Load OPS 1 Into The BFS  |
^  16  |  T-00:26:00  |  Right Panel  |  R2  | * Set He ISOLATION A (LEFT/CRT/RIGHT) To Open \\ * Set He ISOLATION B (LEFT/CRT/RIGHT) To Open \\ * Set PNEUMATICS He ISOL To Open \\ * Set 6 ENGINE POWER Switches (LEFT/CTR/RIGHT) To ON  | Begin The Main Propulsion System (MPS) \\ \\ Helium (He) Pressurization  |
^  17  |  T-00:15:00  |  Front Left Panel \\ Center Panel  |  F6 \\ C3  | * Check ABORT Light ON/OFF For 8 Seconds \\ * Set CAUTION/WARNING MEMORY To CLEAR  | Final Test Of The ABORT System \\ Clear C/W Memory  |
^  18  |  T-00:09:00  |  Right Panel \\ Center Panel  |  R1 \\ C3  | * Set ESS BUS SOURCE (MN B/C, MN C/A, MN A/B) To ON \\ * Set Timer Thumbwheels To 0900 \\ * Set TIMER Switch To SET \\ * Check EVENT TIMER MODE Is DOWN \\ * Set EVENT TIMER CONTROL To START | Enable Fuel Cells,\\ Enable Countdown From Nine (9) Minutes,\\ Start The Countdown  |
^  19  |  T-00:08:00  |  Right Panel  |  R2  | * Check APU FUEL TK VLV (1/2/3) Are CLOSED \\ * Check APU AUTO SHUT DOWN (1/2/3) Are Enable \\ * Check HYD MAIN PUMP PRESS (1/2/3) Are LOW \\ * Check APU SPEED SELECT (1/2/3) Are NORM \\ * Set HYD CIRC PUMP (1/2/3) Set To GPC \\ * Set APU CNTLR PWR (1/2/3) To ON  | The Crew Access Arm Is Retracting APU \\ Prestart Check Is Underway |
^  20  |  T-00:05:10  |  Right Panel \\ \\ \\ Front Center Panel \\ Right Panel \\ Front Center Panel \\ Front Left Panel \\ Right Panel  |  R2 \\ \\ \\ F7 \\ R2 \\ F7\\  F2 \\  R2  | * Set APU FUEL TK VLV (1/2/3) To Open \\ * Check APU/HYD READY TO START (1/2/3) Repeaters-(White) \\ * Set APU OPERATE (1/2/3) To START/RUN \\ * Check HYDRAULIC (APU) Pressure 900psi **(MFD)** \\ * Set HYD MAIN PUMP PRESS (1/2/3) To NORM \\ * Check HYDRAULIC (APU) Pressure 3000psi **(MFD)** \\ * Press MASTER ALARM (If Required) \\ * Set HYD CIRC PUMP (1/2/3) Set To OFF  | APU Start \\ \\ \\ \\ \\ \\ The Master Alarm May Sound Until APU Pressure \\ Reaches 3000 PSI. (Silence Alarm)  |
^  21  |  T-00:04:30  \\ \\  T-00:04:10  |  Left Panel  |  L2  | * Set FLASH EVAP FEEDLINE HTR A & B SUPPLY To OFF  | The Shuttle Is On Internal Power. Turn Off Flash \\ Evaporator Feed Line & Heater Supply \\ APU Check  |
^  22  |  T-00:03:45  \\ \\  T-00:03:05  |    |    |  | Start Hydraulic Check, Aero Surfaces Are Moved, \\ A Gimbal Check Is Performed \\ Hydraulic Check Complete  |
^  23  |  T-00:02:55  |    |    |  | External Tank Liquid Oxygen (LOX) Vents \\ Are Closing & The External Tank Begins To Pressurize. \\ External Tank Cap Is Retracted.  |
^  24  |  T-00:02:00  |  Right Panel \\ \\ Center Panel   |  R2 \\ R1 \\ C3  | * Set APU AUTO SHUT DOWN (1/2/3) To INHIBIT \\ * Set AC BUS SNSR (1/2/3) To MONITOR \\ * Set CAUTION/WARNING MEMORY To CLEAR | APU Power - Inhibit  |
^  25  |  T-00:01:40  \\  T-00:01:20  |    |    |  | Liquid Hydrogen External Tanks Close. \\ Go For Launch  |
^  26  ^  T-00:00:00  ^    ^    ^  ^  **Shuttle Liftoff**  ^

=====Ascent=====
^  COMM  ^  MET  ^  Panel Section  ^  Panel  ^    procedure    ^  Panel Area & Notes  ^
^  27  |  T+00:00:44  \\  T+00:01:10  |            |  |  | Main Engines Throttle Down To 65% \\ Main Engines Throttle Up To 104%  |
^  28  |  T+00:02:05  |  Front Center Panel  |  F7  | * Check Pressure Pc<50 (MFD / CRT 1) | SRB Separation  |
^  --  | SRB Seperation  |  Center  |  C2  | * SPEC 51 PRO **(Right keypad)** will display TTG DUMP Timer. | OMS assist burn starts. will burn till TTG DUMP reaches 0 |
^   602   |  T+00:03:00  |  Overhead Low Panel  |  O1  | * Check FREON - EVAP OUT TEMP Gauge Shows Below 60 Degrees  | Check Flash Evaporator Is Operational  |
^  29  |  T+00:04:20  |            |  |  | Negative Return  |
^  30  |  T+00:06:56  |            |  |  | Single Engine Press To MECO  |
^  31  |  Mission Dep.  |            |  |  | Engines Throttle Down In Preparation  \\  For Main Engine Cutoff (**MECO**)  |
^  --  ^  Mission Dep.  ^  ^  ^  ^  **MECO**  ^

=====Links=====
^  [[basics|Back to basic skills]]  ^^
^Next checklist:  |[[post-launch-checklist|Post-Launch Checklists]]  |
^  [[missions|Go-To Missions Index]]  ^^

<note>  All the checklists were Originally Created by Michael Swannick, and are available for download in PDF format on the [[http://space-shuttle-mission.com/downloads|SSM site]]. \\ Adapted for Wiki format by Marvx and spaceboy7441  </note>