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Space Shuttle: Difference between revisions
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→RCS DAP schemes
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<b>Note:</b> In orbit, 'attitude hold' refers to inertial attitude, not to attitude relative to Earth or the horizon. The orbiting Shuttle in an attitude hold mode thus has an apparent slow attitude drift with respect to the horizon. If a fixed attitude relative to Earth is desired, this needs to be actively managed. | <b>Note:</b> In orbit, 'attitude hold' refers to inertial attitude, not to attitude relative to Earth or the horizon. The orbiting Shuttle in an attitude hold mode thus has an apparent slow attitude drift with respect to the horizon. If a fixed attitude relative to Earth is desired, this needs to be actively managed. | ||
For precision control, the keyboard is a more suitable input device than a joystick or a mouse since exact nulling of rates is somewhat easier with keystrokes. | |||
; Key mapping for RCS rotation DAP | |||
{| class="prettytable" | |||
|- | |||
|{{Key press|4}} | |||
|roll left | |||
|- | |||
|{{Key press|6}} | |||
|roll right | |||
|- | |||
|{{Key press|2}} | |||
|pitch up | |||
|- | |||
|{{Key press|8}} | |||
|pitch down | |||
|- | |||
|{{Key press|[}} | |||
|yaw left | |||
|- | |||
|{{Key press|]}} | |||
|yaw right | |||
|- | |||
|{{Key press|5}} | |||
|cut thrust | |||
|} | |||
; Key mapping for RCS translation DAP | |||
{| class="prettytable" | |||
|- | |||
|{{Key press|4}} | |||
|left | |||
|- | |||
|{{Key press|6}} | |||
|right | |||
|- | |||
|{{Key press|2}} | |||
|down | |||
|- | |||
|{{Key press|8}} | |||
|up | |||
|- | |||
|{{Key press|[}} | |||
|backward | |||
|- | |||
|{{Key press|]}} | |||
|forward | |||
|- | |||
|{{Key press|5}} | |||
|cut thrust | |||
|} | |||
=== Spacewalk === | |||
The Shuttle version as of May 2015 contains a 'proof of concept' spacewalk view designated 'EVA'. This is intended to simulate the view of an astronaut using a MMU. In the EVA view, use {{Key press|Shift|E}} to initiate spacewalk. The stick then controls the MMU thrusters and {{Key press|m}} is used to switch between the translational and rotational modes of the MMU. | |||
Before spacewalk is initiated, the yaw, pitch and roll rates of the Shuttle need to be nulled (since control inputs during spacewalk refer to the MMU, the Shuttle also can't be controlled from this view). | |||
Once outside, the MMU can be used to float around the Shuttle, or to inspect co-orbiting objects. However, note that it is impossible to leave the EVA view unless the astronaut maneuvers back to the airlock. Currently it is not possible to see spacewalk from outside, nor can the view direction be adjusted - in a future implementation, spacewalk will be improved using the FG walker functionality. | |||
== Glossary of acronyms == | == Glossary of acronyms == | ||