https://www.orbiterwiki.org/api.php?action=feedcontributions&user=59.14.174.100&feedformat=atomOrbiterWiki - User contributions [en]2024-03-29T11:54:53ZUser contributionsMediaWiki 1.35.2https://www.orbiterwiki.org/index.php?title=Delta-glider&diff=9708Delta-glider2008-01-07T12:18:55Z<p>59.14.174.100: cnaaceltrocc</p>
<hr />
<div>eltricclasit<br />
{{Infobox Vessel|name=Delta-glider<br />
|pic1_file=DG-Scrshot1.jpg<br />
|pic1_text=Delta-glider in [[atmosphere]]<br />
|full_name=Delta-glider<br />
|role=Glider<br />
|crew=1<br />
|passengers=4<br />
|first_flight_date=date unknown<br />
|service_date=date unknown<br />
|manufacturer=unknown<br />
|length=17.76 m <br />
|height=4.93 m<br />
|width_template=Wingspan<br />
|width=17.86 m<br />
|wing_area=160 m<sup>2</sup><br />
|empty_mass=12,000 kg<br />
|fuel_mass=14,400 kg<br />
|rcs_fuel_mass=600 kg<br />
|max_takeoff_mass=27,000 kg<br />
|inertia_pmi=15.5 / 22.1 / 7.7 m<sup>2</sup><br />
|main_engine_template=Engine<br />
|main_engine=2 x 120 kN<br />
|main_engine_isp=40 kN·s/kg<br />
|retro_engine_template=Engine<br />
|retro_engine=2 x 27 kN<br />
|retro_engine_isp=40 kN·s/kg<br />
|hover_engine_template=Engine<br />
|hover_engine=3 x 90 kN<br />
|hover_engine_isp=40 kN·s/kg<br />
|rcs_engine_template=Engine<br />
|rcs_engine=16 x 1 kN<br />
|rcs_engine_isp=40 kN·s/kg<br />
|max_deltav=31.5 km/s<br />
|max_accel=20 m/s<sup>2</sup><br />
|airfoil_performance_template=AirfoilPerformance<br />
|stall_cl=1.0<br />
|stall_aoa=20&deg;<br />
|docking_port_template=1DockingPort<br />
|docking_port_1=front cone: regular docking collar <br />
}}<br />
<br />
The Delta-glider is the ideal ship for the novice pilot to get spaceborne. Its futuristic design<br />
concept, high thrust and extremely low fuel consumption make it easy to achieve orbit, and it<br />
can even be used for interplanetary travel. The winged design provides aircraft-like handling<br />
in the lower [[atmosphere]], while the vertically mounted hover-thrusters allow vertical takeoffs<br />
and landings independent of atmospheric conditions and runways.<br />
<br />
It comes with the stock Orbiter install.<br />
<br />
The [[scramjet]] variant, Deltaglider-S, splits its main fuel tank into 10,400kg for the main drives and 4,000kg for the scramjets.<br />
Their effective operating range is [[Mach]] 3-8.<br />
<br />
[[Category:Vessels of Orbiter]]</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=Angle_of_attack&diff=9707Angle of attack2008-01-07T12:18:44Z<p>59.14.174.100: basget</p>
<hr />
<div>ouvarortata<br />
'''Angle of attack''' ([[Greek alphabet|Greek]] alpha) is a term used in [[Aerodynamics|aerodynamics]] to describe the [[Angle|angle]] between the [[Wing|wing]]'s [[Chord (aircraft)|chord]] and the direction of the relative [[Wind|wind]], effectively the direction in which the [[Aircraft|aircraft]] is currently moving. The amount of [[Lift (force)|lift]] generated by a wing is directly related to the angle of attack, with greater angles generating more lift (and more [[Drag (physics)|drag]] as it increases the frontal area). This remains true up to the [[Stall|stall]] point, where lift starts to decrease again because of [[Airflow separation|airflow separation]]. Planes flying at high angles of attack can suddenly enter a stall if, for example, a strong wind gust changes the direction of the relative wind, an effect that is seen primarily at low speeds.<br />
<br />
Using a variety of additional aerodynamic surfaces &mdash; known as high-lift devices &mdash; like [[Leading edge extension|leading edge extensions]], [[Fighter aircraft|fighter aircraft]] have increased the potential flyable alpha from about 20° to over 45°, and in some designs, 90° or more. That is, the plane remains flyable when the wing's chord is at right angles to the direction of motion.<br />
<br />
Some aircraft are equipped with a built-in flight computer that automatically prevents the plane from lifting its nose any further when the maximum angle of attack is reached, in spite of pilot input. This is called the angle of attack or alpha limiter. The pilot may disengage the alpha limiter at any time, thus allowing the plane to perform tighter turns (but with considerably higher risk of going into a stall). A famous example of this is [[Pugachev's Cobra]], a maneuver which can only be performed by the [[MiG-29]], the [[Su-27]]/[[Su-33]] and some prototype Western aircraft. It consists of the pilot disengaging the alpha limiter and pulling the aircraft to a 90°&ndash;110° angle of attack, then back down to zero. In a properly performed Pugachev's Cobra, the plane maintains a straight and level flight throughout the maneuver.<br />
<br />
==See also==<br />
*[[Airfoil]]<br />
*[[Angle of incidence]]<br />
*[[Camber]]<br />
*[[Coefficient of lift]]<br />
*[[Drag equation]]<br />
*[[Lift (force)]]<br />
<br />
[[Category:Glossary]]<br />
[[Category:Aerodynamics]]</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=File:TX-Scrshot1.jpg&diff=9706File:TX-Scrshot1.jpg2008-01-07T12:18:32Z<p>59.14.174.100: dronacelcv</p>
<hr />
<div>ricbocbocelt<br />
A picture of Kulch's TX (Tug/Experimental) in low earth orbit, with a DeltaGlider nearby.</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=Category:Vessel_add-ons&diff=9704Category:Vessel add-ons2008-01-07T12:15:21Z<p>59.14.174.100: letovial</p>
<hr />
<div>licarelc<br />
[[Category:Add-ons]]</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=Wingspan&diff=9702Wingspan2008-01-07T12:12:52Z<p>59.14.174.100: varnol</p>
<hr />
<div>bocletos<br />
'''Wingspan''', or simply '''span''', is the distance from [[Wingtip|wingtip]] to wingtip.<br />
The wingspan of an aircraft is always measured in a straight line, independently of wing shape or sweep.<br />
<br />
Since the amount of lift that a wing generates is proportional to the area of the wing, planes with short wings must correspondingly have a longer [[chord]]. An aircraft's ratio of its wingspan to chord, or more formally, the ratio of the wingspan squared to the area, is therefore very important in determining its characteristics, and aerospace engineers call this value the [[aspect ratio]] of a wing.<br />
<br />
[[Category:Glossary]]<br />
[[Category:Aerodynamics]]<br />
{{Stub}}</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=SDK_documentation&diff=9700SDK documentation2008-01-07T12:09:48Z<p>59.14.174.100: liliera</p>
<hr />
<div>getdarorr<br />
This is where all links to SDK documentation will go. For now there's just the functions reference, but this is where various tutorials etc. will go.<br />
<br />
* [[:Category:OrbiterSDK|Orbiter SDK]]<br />
* [[:Category:Orbiter 3D Model|Orbiter 3D Model]]</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=Stall&diff=9699Stall2008-01-07T12:08:40Z<p>59.14.174.100: oudellic</p>
<hr />
<div>dronlisitr<br />
In ''Aerodynamics'' a '''stall''' is a condition in which an excessive [[angle of attack]] causes a separation of airflow on the upper surface of the wing. The stall is manifested by a corresponding increase in drag and a rapid loss of lift.<br />
<br />
More information at Wikipedia: [http://en.wikipedia.org/wiki/Stall]<br />
<br />
[[Category:Glossary]]<br />
[[Category:Aerodynamics]]<br />
<br />
{{Stub}}</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=Category:Tutorials&diff=9695Category:Tutorials2008-01-07T12:05:07Z<p>59.14.174.100: lichieralelt</p>
<hr />
<div>domboboour<br />
{|style="border-spacing:8px;margin:0px -8px;background:none;"<br />
|class="MainPageBG" style="width:20%;border:1px solid #cef2e0;background-color:#f5fffa;vertical-align:top;color:#000"|<br />
{|width="100%" cellpadding="2" cellspacing="5" style="vertical-align:top;background-color:#f5fffa"<br />
! <p style="margin:0;background-color:#cef2e0;font-size:120%;font-weight:bold;border:1px solid #a3bfb1;text-align:left;color:#000;padding:0.2em 0.4em;">Tutorials for pilots</p><br />
|-<br />
|style="color:#000"|To get you started:<br />
* [[Your first flight]]<br />
More advanced tutorials:<br />
* [[:Category:Orbit tutorials|Orbit tutorials]]<br />
* [[:Category:Transfer tutorials|Transfer tutorials]]<br />
* [[:Category:Reentry tutorials|Reentry tutorials]]<br />
|}<!-- Start of middle-column --><br />
|class="MainPageBG" style="width:20%;border:1px solid #cef2e0;background-color:#f5fffa;vertical-align:top;color:#000"|<br />
{|width="100%" cellpadding="2" cellspacing="5" style="vertical-align:top;background-color:#f5fffa"<br />
! <p style="margin:0;background-color:#cef2e0;font-size:120%;font-weight:bold;border:1px solid #a3bfb1;text-align:left;color:#000;padding:0.2em 0.4em;">Tutorials for developers</p><br />
|-<br />
|style="color:#000"|To get you started:<br />
* [[Free Compiler Setup]]<br />
More advanced tutorials:<br />
* [[:Category:Addon tutorials|All addon tutorials]]<br />
|-<br />
|}<!-- Start of right-column --><br />
|class="MainPageBG" style="width:60%;border:1px solid #cedff2;background-color:#f5faff;vertical-align:top"|<br />
{| width="100%" cellpadding="2" cellspacing="5" style="vertical-align:top;background-color:#f5faff"<br />
! <p style="margin:0;background-color:#cedff2;font-size:120%;font-weight:bold;border:1px solid #a3b0bf;text-align:left;color:#000;padding:0.2em 0.4em;">Random tutorial</p><br />
|-<br />
|style="color:#000"|{{OrbiterWiki:Random tutorial}}<br />
|-<br />
|}<br />
|}<br />
All addons available on OrbiterWiki are listed below. In addition, they can be accessed by categories.<br />
<br />
===External links===<br />
* [http://www.orbitersim.com/Forum/default.aspx?g=posts</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=principal_moments_of_inertia&diff=9694principal moments of inertia2008-01-07T12:04:40Z<p>59.14.174.100: codelalle</p>
<hr />
<div>acelcamon<br />
'''Moment of inertia''' ([[SI]] unit [[Kilogram|kilogram]] [[Square metre|metre squared]] kg m<sup>2</sup>) quantifies the [[Inertia#Rotational_inertia|rotational inertia]] of an object, i.e. its inertia with respect to rotational motion, in a manner somewhat analogous to how [[Mass|mass]] quantifies the [[Inertia|inertia]] of an object with respect to translational motion.<br />
{{Stub}}</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=reaction_control_system&diff=9693reaction control system2008-01-07T12:02:59Z<p>59.14.174.100: varrold</p>
<hr />
<div>darlitro<br />
A '''reaction control system''' (abbreviated '''RCS''') is a subsystem of a spacecraft. Its purpose is attitude control and steering. An RCS system is capable of providing small amounts of thrust in any desired direction or combination of directions. An RCS is also capable of providing torque to allow control of rotation (pitch, yaw, and roll). This is in contrast to a spacecraft's main engine, which is only capable of providing thrust in one direction, but is much more powerful.<br />
<br />
see also:Wikipedia [http://en.wikipedia.org/wiki/Reaction_Control_System]<br />
<br />
{{Stub}}</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=Wing_area&diff=9692Wing area2008-01-07T12:02:12Z<p>59.14.174.100: caleto</p>
<hr />
<div>trocacracbo<br />
'''Wing area''' is the effective [[Area|area]] used for calculating [[Lift|lift]]. <br />
<br />
[[Category:Aerodynamics]]<br />
[[Category:Glossary]]<br />
{{Stub}}</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=low_Earth_orbit&diff=9691low Earth orbit2008-01-07T12:01:20Z<p>59.14.174.100: letobasli</p>
<hr />
<div>raccroacleto<br />
A '''low Earth orbit''' ('''LEO''') is a circular [[Orbit|orbit]] around [[Earth]] between the atmosphere and the [[Van Allen radiation belt]]. These boundaries are not firmly defined, but are typically around 350 - 800 km above the [[Earth|Earth's]] surface, with inclination angles less than 60 degrees from the equator. This is generally below [[intermediate circular orbit]] (ICO), Sun-synchronous orbit and far below [[geostationary orbit]]. Orbits lower than this are not stable, and will decay rapidly because of atmospheric drag. Orbits higher than this are subject to early electronic failure because of intense radiation and charge accumulation. Orbits with a higher inclination angle (>~ 70 degrees) are usually called [[polar orbit]]s. <br />
<br />
Objects in low Earth orbit encounter atmospheric gases in the [[thermosphere]] (approximately 80-500 km up) or [[exosphere]] (approximately 500 km and up), depending on orbit height.<br />
<br />
Most [[manned spaceflight]]s have been in '''LEO''', including all [[Space Shuttle]] and various [[space station]] missions; the only exceptions have been suborbital test flights such as the early [[Project Mercury]] missions (which did not reach '''LEO'''), and the [[Project Apollo]] missions to the Moon (which went beyond '''LEO''').<br />
<br />
Most early artificial [[satellite]]s were placed in '''LEO'''. Here they travel at about 27,400 km/h (8 km/s), making one revolution in about 90 minutes. The primary exceptions are [[communication satellites]], now common, that now mostly use geostationary orbit to obviate the requirement for dishes to track the satellite's movement and [[meteorological satellites]]. It requires less energy to place a satellite into '''LEO''' and the satellite needs less powerful transmitters for data transfer, so '''LEO''' is still used for occasional communication applications. Because these orbits are not geostationary, a network of satellites is required to provide continuous coverage. Lower orbits also aid [[Remote Sensing|remote sensing]] because of the added detail that can be gained.<br />
<br />
The '''LEO''' environment is becoming congested, not least with [[Space debris|space debris]]. The [[United States Space Command]] tracks more than 8,000 objects larger than 10cm in '''LEO'''.<br />
<br />
Although [[Gravity|gravity]] in '''LEO''' is not much less than on the surface of the [[Earth]] (it reduces 1% every 30 km), people and objects in any orbit experience [[Weightlessness|weightlessness]]. This is an effect of freefall and has nothing to do with the strength of the gravitational field.<br />
<br />
[[Atmosphere|Atmospheric]] and gravitational losses associated with launch typically add 1,500-2,000 m/s to the [[Delta-V|delta-v]] required to reach normal '''LEO''' orbital [[Velocity|velocity]] of ~7,800 m/s.<br />
<br />
==See also==<br />
*[[Geostationary earth orbit]]<br />
*[[Powered flight losses]]<br />
*[[impulse]]<br />
<br />
[[Category:Glossary]]<br />
[[Category:Spaceflight]]</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=specific_impulse&diff=9690specific impulse2008-01-07T12:00:46Z<p>59.14.174.100: delroa</p>
<hr />
<div>sitczeltr<br />
'''Specific impulse''' is a measure of the efficiency of a reaction-drive engine (e.g. a rocket). It measures the amount of momentum change that is delivered for the expenditure of a set mass of propellant.<br />
<br />
For example, the [[Delta-glider]]'s main engines have a specific impulse of 40 kN·s/kg. For each kg of propellant expended, they will produce 40kN of thrust for one second - or one kN of thrust for 40 seconds.<br />
<br />
The formula N·s/kg can be reduced to m/s; specific impulse could be considered to represent the exhaust velocity of an idealised rocket.<br />
<br />
Note that American usage treats specific impulse somewhat differently; the use of pounds-thrust as well as pounds-mass leads to a figure in (lbthr·s/lb), with the lbthr and lb being naively cancelled to give a number expressed as a time. See for example [http://www.nas.nasa.gov/About/Education/SpaceSettlement/Nowicki/SPBI101.HTM this NASA page] which describes a rocket of having a specific impulse of "240 seconds". To convert this to a proper formulation, remember that this should really be "240 gravity seconds" - the [[Earth]]'s surface gravity is a hidden factor. Multiply 240s by 9.81 m/s/s and you get the true value, 2354.4 m/s. Of course, if you're just comparing different spacedrives rather than doing detailed calculations, this doesn't matter - just make sure all the specific impulse values you use follow the same convention.<br />
<br />
The maximum [[thrust]] of a drive is unrelated to its specific impulse.<br />
<br />
The total [[Delta_V]] of a ship is Isp*ln(1+F/M), where F is the fuel mass, M is the dry mass, and Isp is the specific impulse of the drive.<br />
<br />
See also Wikipedia: [http://en.wikipedia.org/wiki/Specific_Impulse]<br />
<br />
[[Category:Glossary]]</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=Talk:TX&diff=9689Talk:TX2008-01-07T11:58:49Z<p>59.14.174.100: lilicna</p>
<hr />
<div>ervibos</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=TX&diff=9688TX2008-01-07T11:58:13Z<p>59.14.174.100: cliboceldron</p>
<hr />
<div>domdaralg<br />
{{Addon|<br />
1=[http://www.orbithangar.com/advsearch.cfm?search=name&text=tx%20winged&S=Search TX at orbithangar.com]|<br />
2=[[Kulch]]<br />
}}<br />
<br />
{{Infobox Vessel|name=TX<br />
|pic1_file=TX-Scrshot1.jpg<br />
|pic1_text=TX and [[Delta-glider]] in [[low Earth orbit]]<br />
|full_name=Tug eXperimental<br />
|role=Atmospheric tug<br />
|crew=3<br />
|passengers=none<br />
|first_flight_date=date unknown<br />
|service_date=date unknown<br />
|manufacturer=Kulch SRC, but studied by [http://en.wikipedia.com/wiki/NASA NASA]<br />
|length=110.39 m <br />
|height=22.28 m<br />
|width_template=Wingspan<br />
|width=85.15 m<br />
|wing_area= - m<sup>2</sup><br />
|empty_mass=210,000 kg<br />
|fuel_mass=555,000 kg<br />
|rcs_fuel_mass=10,000 kg<br />
|max_takeoff_mass=825,000 kg<br />
|inertia_pmi=- m<sup>2</sup><br />
|main_engine_template=Engine<br />
|main_engine=12 x ? kN<br />
|main_engine_isp=? kN·s/kg<br />
|retro_engine_template=N/A<br />
|hover_engine_template=N/A<br />
|aux_engine_template=N/A<br />
|rcs_engine_template=Engine<br />
|rcs_engine=? N<br />
|rcs_engine_isp=? kN·s/kg<br />
|max_deltav=? m/s<br />
|max_accel=? m/s<sup>2</sup><br />
|airfoil_performance_template=AirfoilPerformance<br />
|stall_cl=?<br />
|stall_aoa=?&deg;<br />
|docking_port_template=1DockingPort<br />
|docking_port_1=top antenna bay: telescopic docking collar<br />
<br />
}}<br />
<br />
'''TX''' (or Tug, Experimental) is the Kulch SRC's experimental winged hypersonic booster. The first of a series of Winged Boosters set to be developed by Kulch, the TX is designed to carry payloads up to 50 tons to [[low Earth orbit]].<br />
<br />
The main jet installation consists of 6 combined engines, able to work both in an atmosphere and in space, and 6 space-only engines. The propellant is liquid oxygen and hydrogen. An air shutter is automatically controlled to maintain maximum efficiency of engines during atmospheric flight; once the engines have switched purely to internal oxidizer, the shutter is closed. Main engines have two modes of operation: take-off and orbital. In take-off mode all 12 engines work (in atmospheric flight, 6 engines). In orbital mode such large thrust is not required, so only 4 engines of the 12 (2 engines in atmospheric flight) work. Orbital mode is also used during landing, since almost all fuel is consumed and the TX is lighter than during takeoff.<br />
<br />
Kulch SRC is not the original creator of the TX, for it is based on a study by NASA in 1971, with some of the TX's features summarized in the book "''The Estimation of Characteristics of Carriers for Space Vehicles''" <br />
<br />
The TX can carry other light vehicles to orbit; it is designed specifically for the [[Delta-glider]] and [[VTOL-X]], but with an appropriate flight profile, it can also be an effective first stage for the [[Deltaglider EX]].<br />
<br />
<br />
<br />
[[Category:Add-ons]]<br />
[[Category:Vessel add-ons]]</div>59.14.174.100https://www.orbiterwiki.org/index.php?title=Category_talk:Add-ons&diff=9019Category talk:Add-ons2007-11-14T20:48:16Z<p>59.14.174.100: None</p>
<hr />
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