Difference between revisions of "Black Dart"
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Latest revision as of 12:53, 8 November 2022
The X-41 Black Dart is a futuristic military spaceplane. It is currently under development.
Features[edit]
- Main engine can gimbal from +5° to -90°, allowing hover flight in combination with a thruster in the nose.
- Nozzle extension deploys depending on thrust level (~chamber pressure) and ambient pressure, optimizing ISP.
- Nozzle performance depends on ambient and chamber pressure.
- Ladder deploys automatically when landing gear down and Ventral Bay Doors open.
Main Engine[edit]
Main engine TVC trim angle can only pass past -5°, when Main engine doors are opened. Main engine doors can only close when TVC trim angle is between +5° and -5°.
The nozzle extension position has three modes, RET, AUTO and DPY. RET keeps the nozzle in the retracted position, DPY keeps the nozzle extended.
| Warning! Vertical landing with deployed nozzle extension can result in nozzle damage. |
When in AUTO mode, the nozzle extension logic selects nozzle extension position for optimal ISP at current thrust level and ambient pressure. The automatic mode also retracts the nozzle when flying below 20m altitude.
Specifications (X-41A)[edit]
| Empty mass | 12,000 kg |
|---|---|
| Main propellant mass | 10,000 kg |
| RCS/OMS propellant mass | 6,000 kg |
| MTOW | 32,000 kg |
| Main Engine Thrust (vac) | 680 |
| Main Engine ISP (vac) | 61000 |
Keyboard layout[edit]
| 1 | Enable Low Thrust Mode of the main engine |
|---|---|
| 2 | Enable High Thrust Mode of the main engine |
| 3 | Toggle between OMS and main engine as main thrust group |
| 4 | Deploy/stow REO console |
| 5 | Deploy antenna |
| 6 | Open/close Inner Hatch |
| CTRL + 6 | Open/close Outer Hatch |
| 7 | Open/Close main engine and hover doors. |
| 8 | Cycle through main engine nozzle extension modes (Retract, Automatic, Deploy) |
| CTRL + 9 | Open/close canopy |
| 0 | Open/close fuel and oxidizer umbilical access doors |
| CTRL+0 | Extend/Retract under-wing pylons. |
| E | Begin EVA, using the last astronaut which entered the spacecraft. |
| G | Deploy/retract landing gear |
| K | Open/close dorsal bay doors |
| CTRL + K | Open/close ventral bay doors |
| ALT + 1 | Power on/off MILGPC 1 |
| ALT + 2 | Power on/off MILGPC 2 |
| ALT + 3 | Power on/off MILGPC 3 |
| ALT + 4 | Power on/off MILGPC 4 |
| ALT + 5 | Power on/off Pilot DTU |
| Space | Release/Activate/Deactivate payload. |
| Tab | Begin/Abort communication mode |