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Many individuals contribute to the safe and successful launch of DSA Spacecraft. The official job titles and descriptions of each participant are listed below. If there is a shortage of manpower, one person can assume several roles.
| Station | |
|---|---|
| Abbr | Title |
LPS | Launch processing system coordinator |
SURGEON | Flight surgeon |
SRO | Superintendant of range operations |
LRD | Landing and recovery director |
SAFETY | Safety console coordinator |
CTC | Capsule test conductor |
TBC | Tank/booster test conductor |
CGLS | Ground launch sequencer engineer |
LD | Launch director |
MINERVA | Spacecraft pilot |
LPS)SURGEON)SRO)LRD)SAFETY)off/safeholdon during all stages of flightoff only…CTC)safeTBC)CGLS)LD)MINERVA)
One to two days before launch, astronauts should report to the SpaceHab for astronaut training. LPS is responsible for conducting the training. The Quarantine Area houses a complete mock-up of the Minerva space capsule. Astronauts will learn:
The DSA requires that all astronauts be in top physical condition prior to departure. SURGEON will administer a complete physical and ensure that the astronaut is current on all their immunizations.
At the conclusion of training, the astronaut will name their spacecraft. This is how controllers will address the spacecraft during the flight.
The next step to a successful launch is a range survey. Although the DSA's missile range is built in a remote, unpopulated area, wildlife may still pose a threat. Errant boaters need to be kept out of the blast hazard areas. It is the responsibility of SRO to ensure that nothing threatens, or is threatened by, the launch.
At the beginning of active operations, SRO will travel to the pad by boat and conduct a range survey. Any abnormalities should be reported and corrected. SRO will remain at or near the pad until boarding is complete, monitoring the area for hazards.
Although the SRO is responsible for the range as a whole, the LRD is responsible for the selection and maintenance of a safe landing site. Landing sites must be in a large body of water which is at least three meters deep throughout. Landing sites must be free of debris and tall obstructions in any direction. Care should be taken that there are no shallow areas.
When descending under parachute, the Minerva space capsule has the following flight characteristics
| Sink rate | 8.7 m/s |
|---|---|
| Glide ratio (horz:vert) | 1:2.1 |
| Preferred parachute deployment altitude | 400 m |
Given these characteristics, landing sites should be within about 160 meters of the pad—but are frequently much closer. Assuming that the spacecraft ascends straight up, calculate the deployment altitude and direction of travel after deployment which will bring the capsule back to the landing site. Leave plenty of margin. This information should be communicated to the mission planners and MINERVA.
Before fueling begins, SAFETY will ensure that the controls in the Launch Control Center (LCC) are correctly set in the safe position. SAFETY must check that:
off / SAFE.REDRED
The master power switch must remain off for the duration of fueling. SAFETY should also toggle all flight controller hold switches to the hold position. When the switches are in the hold position, the status torches above each workstation will illuminate red.
Fueling the launch vehicle is a high-risk activity. Read carefully.
CTC and TBC are responsible for fueling the launch vehicle. Because this is a high-risk activity, they will check each others' work. Once SAFETY and SRO have given the go-ahead, fueling may commence.
TBC will craft a total of twelve (12) units of TNT.CTC and TBC will verify that the beacon at the launch pad is RED, then proceed to the launch pad.CTC will ascend the launch pad and enter the capsule. CTC will verifySAFE position. Lamps on the capsule's control station will be extinguished; ANDBTC is clear to begin loading. BTC will access the launch vehicle's fueling door. The fueling door is located on Swing Arm #2, which is the second of the four swing arms up the tower. The fueling door may be opened with a lever.BTC will climb to the top of each ladder in turn. Beware of live wires.BTC must load one (1) unit of TNT into each dispenserBTC has completed fueling the dispensers, CTC will check that each of the twelve dispensers has exactly one unit of TNT loaded into it. No other items should be placed into dispensers!CTC and BTC will leave the interior of the launch vehicle. BTC will close the fuel door, and CTC will check that it has been closed.
CTC and BTC should return to the Launch Control Center when fueling is complete.
During polling, each launch controller should give a “go” or “no-go” for launch. Upon giving the “go,” the corresponding hold switch should be moved to the down-and-off position. The red light above the switch will extinguish. If the controller is not physically present in the control room—i.e., they are occupied elsewhere—then an adjacent controller will operate the lever.
The LD shall poll the following stations, in order:
MINERVACGLSSROLRDSAFETYTBCCTCLPSLD
If all flight controllers are “go” and no red lights are visible above the controller desks, then LD should request that CGLS commence the countdown. CGLS will then:
CGLS should read the countdown aloud. When reading the countdown, read the times and milestones from the following table. Both should be read as lights are extinguished. For example, read entry for “Ground launch sequence start” immediately after the first lamp is extinguished.
| Lamps Lit | T± (MM:SS) | Milestone |
|---|---|---|
| 15 | T- 01:50 | Countdown initiated |
| 14 | T- 01:43 | Ground launch sequence start |
| 13 | T- 01:36 | |
| 12 | T- 01:29 | |
| 11 | T- 01:22 | |
| 10 | T- 01:15 | Main engine gimbal test |
| 9 | T- 01:08 | |
| 8 | T- 01:01 | |
| 7 | T- 00:54 | Internal power transfer |
| 6 | T- 00:47 | |
| 5 | T- 00:40 | |
| 4 | T- 00:33 | Auto-sequence start |
| 3 | T- 00:26 | |
| 2 | T- 00:19 | Main engine start |
| 1 | T- 00:12 | |
| 0 | T- 00:05 | Launch commit |
| – | T+ 00:00 | TNT Ignition |
| – | T+ 00:04 | Lift-off |
| – | T+ 01:04 | Main engine cut-off |
At any time prior to main engine start, at T- 00:19 seconds, any controller may request that the countdown be held by
CGLS should acknowledge that the countdown has been held.
After main engine start, all holds will be considered a mission ABORT. To re-start from an abort condition, the master power must be cycled off, then back on again, and the full countdown must be started from the top (i.e., T- 01:50).
After launch commit, no abort is possible, and the flight must continue.
In the event of a hold or abort, MINERVA should rotate the Pilot's Arm Switch to the down-and-off position. This action will inhibit and prevent TNT ignition, but it will not hold the countdown. In the event that MINERVA requests a countdown hold, CGLS is responsible for holding the countdown.