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Dragonfly (Orbiter Sim) | bgcolor="lightsteelblue" colspan="3" align="center" style="border-bottom:3px solid"|Dragonfly | | olspan="3" align="center"| | | gcolor="lightsteelblue" colspan="3"|Description | | ole | colspan="2"|Space tug | | rew | colspan="2"|1 or 2 | | irst Flight | colspan="2"| date unknown | | ntered Service | colspan="2"| date unknown | | anufacturer | colspan="2"|unknown | | gcolor="lightsteelblue" colspan="3"|Dimensions | | idth="30%"|Length | align="right" width="30%"|14.52 m | align="right" | 47 ft 7 in | | idth | align="right" |7.20 m | align="right" | 23 ft 7 in | | eight | align="right" |5.60 m | align="right" | 18 ft 4 in | | gcolor="lightsteelblue" colspan="3"|Weights | | mpty | align="right" |7,000 kg | align="right" |15,432 lb | | 00% fueled | align="right" |11,000 kg | align="right" | 24,251 lb | | gcolor="lightsteelblue" colspan="3"|Propolusion | | a href="/encyclopedia/Reaction-control-system-" title="Reaction control system ">RCS | align="right"|16 x 1,000 N | | | lign="right"|@ Isp of | align="right"| 4,000 m/s | | | gcolor="lightsteelblue" colspan="3"|Performance | | ax delta-v | align="right"|1,800 m/s | | | ax accel | align="right"|18 m/s^2 | (empty) | | gcolor="lightsteelblue" colspan="3"|Docking ports | | irst | regular docking collar | front | Dragonfly is a futuristic space tug featured in Orbiter space flight simulator (a closed source, freeware simulator by Martin Schweiger). The craft and its systems have been designed to use existing state-of-the-art aerospace technologies - in fact there have been some designs similar to that floating over the last three decades. Designed for moving payload in orbit it is a perfect choice for on-orbit jobs like assembling space stations or transferring cargo between space stations or cargo carriers. However such jobs prove to be extremely demanding for novice Orbiteers. Dragonfly is included in the standard distribution of Orbiter. Features and capabilities Dragonfly has been designed with a meticulous attention to details and realism, making it both complex, challenging and rewarding for those who actually master operations of this bird. It can be however used only for limited on-orbit construction and cargo transfer jobs as its relistic propolusion system gives it an unimpressive theoretical delta-V of about 1.8 km/s - one of the lowest of the standard-issue Orbiter spacecraft (see also Orbiter spacecraft comparison). Cockpit and panels Delta-glider fetures one of the best-developed cockpits available in Orbiter add-ons which consists of three panels: - Left panel - with readouts for current speed, switches and indicators to operate the docking hatch and airlocks,
- Main panel - propellant status indicator, readouts for current tank fill status, mass flow rates for the main fuel pumps, access to the manual engine controls (main, hover, auxiliary), two multifunctional displays (MFD) and HUD,
- Right panel - .
Engines and fuel systems The engine layout consists of 16 RCS thrusters using cryogenic mixture of LOx / LH2 of relatively low but fully realistic specific impulse (compare Table ) Dragonfly does not have any other 'main' engine system in normal sense. There are is only one propellant systems for RCS engines. Other systems Dragonfly features elaborate and complex systems simulation engine. Docking, EVA and cargo Dragonfly has a docking port and airlock in front of the control/habitat module. There are additional functions available relating to cargo blocks that can be docked to the craft. Latest release The current version (031217) features: It is part of the standard distribution of Orbiter See also External links
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