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JARVIS HEAVY LAUNCH VEHICLE By Forum Orbiter Italia Version 2.62 – October 2012 USER MANUAL Disclaimer and credits This add-on is provided “as is”, without any kind of warranty; it is compatible with Orbiter 2006-P1 (build 060929) and with Orbiter 2010-P1 (build 100830). Many thanks to Dr. Martin Schweiger, for the Orbiter Space Simulator. For the others developers: You are free to use parts of our work, eg sound and texture, but you must credit us as the original source of your work. FOI Credits - Andrew: add-on conception; rocket textures, meshes and configuration; documentation editing. - Fausto: new launch pad textures, meshes and configuration. - Pete Conrad: engine meshes and textures; Shuttle SRB meshes and textures; “dummy” payload meshes and textures. - FedeX: beta testing. - Dany: “Forum Orbiter Italia” logo. - Ripley: D3D9/D3D11 documentation. Forum Orbiter Italia: http://orbiteritalia.forumotion.com/ Introduction In the mid-eighties, the "Jarvis" project was the last serious attempt to revive the glorious Saturn V rocket, and at the same time, one of the first ideas of an alternative use for the Space Shuttle hardware, many years before the current "Ares", "Direct" and “SLS” projects. The Jarvis rocket combines the powerful Apollo-era F-1 and J-2 engines with Space Shuttle electronics and 8.4 m stages (the same size of the Shuttle External Tank). Later versions, with Space Shuttle Main Engines (SSME) and/or Solid Rocket Boosters (SRB), were proposed, but never realized. Forum Orbiter Italia has developed a complete and versatile family of heavy launchers around these original ideas and projects. The versions included in this package are: Jarvis S (“Single engine” version): the smallest and cheapest version of the rocket. The first stage is a scaled-down version of the standard JS-1 stage utilized in all the other versions of the Jarvis, with a diameter of 6.49 meters and only one F-1 engine instead of two. The second stage is the new HES-3 with three cryogenic “Vinci” engines. This version has a payload capacity of 20,700 Kg to LEO. Jarvis L ("Light" version): the second smallest version of the rocket, with a standard JS-1 stage and 8.38 meter fairings. This version has a capacity of 27,900 Kg to LEO. Jarvis C ("Commercial" version): basically, a Jarvis L optimized for GTO commercial launches, with a small cryogenic third stage and a dual-payload carrying system. This version has a capacity of 34,100 Kg to LEO and 13,400 Kg to GTO. Jarvis B ("Basic" version): the original (improved) two-stage configuration of the Jarvis rocket, with a J-2S powered second stage and a payload capacity of 44,400 Kg to LEO. Jarvis E ("Enhanced" version): a Jarvis B with a third stage powered by four RL-10 engines, for a payload capacity of 55,400 Kg to LEO. Jarvis H ("Heavy" version): the most powerful version of the rocket (in terms of liftoff thrust). It is a Jarvis E with longer fairing and two Shuttle Solid Rocket Boosters, for a large payload capacity of 80,700 Kg to LEO. Jarvis M ("Moon" version): the largest version of the rocket, specifically designed for manned circumlunar flights, with the following features: a new, more efficient cryogenic core stage powered by five RS-25E engines; HES-5 third stage with five cryogenic “Vinci” engines; two Jarvis S first stages as liquid boosters. The payload capacity is in the same class of the Saturn V rocket: 128,800 Kg to LEO and 48,700 Kg to TLI. The updated Jarvis family of launch vehicles. Colors represents the common parts. Installation and requirements Unzip the content of the new add-on in your Orbiter directory. As always, it's better to delete the previous Jarvis package prior to install the new version. The following add-ons are required: Vinka’s Multistage2 Vinka’s Spacecraft3 (with Orbiter 2006-P1 patch, included in the package). Orbiter 2010-P1 requires the “stage.dll” patch (included in the package). http://users.swing.be/vinka/ For the Capo Passero scenarios, is also required the ASVI base - Capo Passero, v1.0 or higher, by Orbiter Forum Italia. http://www.orbithangar.com/searchid.php?ID=5172 For the "Verrazzano Moon Mission" scenario, is required the Antares Manned Spacecraft, v2.1 or higher, by Orbiter Forum Italia. http://www.orbithangar.com/searchid.php?ID=4682 Payload management The 6.5, 8.4 and 10 meter fairings atop the Jarvis launch vehicle can easily accommodate a large variety of payloads. The "Heavy" and “Moon” versions (Jarvis-H and Jarvis-M) has enough payload capacity to match the performances of the Soviet N-1 and the Saturn V rocket, and can hypothetically put into orbit a new Skylab-class space station in a single launch. Launching of very large spacecraft/payloads to the moon or distant planets is also possible. Configuration of the payloads must be managed by the Jarvis_x.ini file located in the Config/Jarvis directory. Open the .ini file and locate the following text: [PAYLOAD_1] off=(0.,0.00,60) speed=(0.0,0.0,0.0) rot_speed=(0.,0.,0.0) MeshName="jarvis\cargo" Module="spacecraft\spacecraft3" name="cargo_jarvis" Diameter=2.9 Height=5.6 Mass=55400 Jarvis rockets come with a dummy cargo: a non-operational module filled with ballast. When setting your custom payload, be careful not to exceed the maximum payload capacity of the rocket and the dimensional limits of the fairings. You can use an adapter for your payloads: some adapters are available directly in the config file. Open the .ini file and locate the following text: ;[SEPARATION_23] Height=3 Diameter=6 Emptymass=300 Meshname="jarvis\adapterLBEH" OFF=(0,0,54.595) ROT_SPEED=0 Then, just remove the semicolon on "Separation" string for utilize the adapter. Jarvis S and Jarvis M have the possibility of choice between two size of payload fairing. Open the .ini file and locate the following text: ;[FAIRING] N=2 MeshName="jarvis\Jfairing2" Diameter=8.4 Height=25 angle=0 off=(2.0883,0.0,77.666) SPEED=(4.6,0.0,1.8) ROT_SPEED=(0.0,-12,0.0) emptymass=4040 Then, just remove the semicolon on "Fairing" string for utilize the specific fairing. Special payloads In this version of the addon, the logistic spacecraft / space tug “Giovanni da Verrazzano” and a special DoD payload, the KH-11 spy satellite, are included in the package: the scenarios are in the Jarvis/Verrazzano and Jarvis/DoD folders. Read the Verrazzano and KH-11 documentations for further details. “Nosecone Art” In the “Extras” folder are included the .bmp files of the payload fairings: the one used in the “standard” versions of the rocket (S, L, B, and E) and the one used in the “heavy” versions (H, M). Also, an empty fairing (without logo) is included. You can modify these images, then convert it in dds format (various converters are available out there) and, finally, copy the new file in the Textures/Jarvis folder for customize the rocket for your needs. Make a backup of the original files. Thanks to Phantom Cruiser, who give us the idea. Launch procedures Pre-launch settings After the payload configuration, the next step is, possibly, setting the azimuth for the automatic launch. This parameter must be edited directly in the guidance_Jarvis_x.txt located in the Config/Jarvis directory. Open the .txt file and locate the line of the “roll” program: roll(init_pitch_time,init_pitch_angle,heading_target,pitch_target,pitch_mode). For example: 7=roll(5,90,90,84,1) The launcher is pitched in the direction indicated by “pitch_mode” (1=pitch up, -1=pitch_down) until it reaches the “init_pitch_angle”(in °), then the pitch guidance loop is closed and the pitch is controlled in order to reach the pitch target. When the “init_pitch_time” has elapsed, the roll and yaw guidance are terminated to reach the proper heading target. This is a complex manoeuvre and inputting bad parameters can lead to a catastrophic roll. For manual launch, this step can be skipped. For more details about the configuration of the guidance file, see the Vinka’s multistage documentation. The date of the launch must be managed by editing the scenario file. Open the file and locate the correct string: Date MJD 62415.7029763416 The string indicates the Modified Julian Day. If you want modify this parameter, you must insert a new date. A converter from MM-DD-YYYY to MJD can be useful; for example, you can utilize the “Date.exe” converter, located in the Utils folder of Orbiter, or this one: http://www.fourmilab.ch/documents/calendar/ Launch The launch is automatic. The scenarios starts at about T-80 seconds. The launch pad animations are also automatic. At T-30 seconds, the speaker begin his comment of the launch; at T-5, the main engines are ignited. The launcher is configured for automatic orbital insertion. For a manual ascent, press P key a second time immediately after the liftoff. The autopilot cannot be reactivated. After the MECO, you have full control of the spacecraft. In orbit, press J to release the payload. “Quicklaunch” In the Scenarios/Jarvis/Quicklaunch folder you have some launch scenarios without autopilots and other automatic launch procedures. You can use these scenarios for enjoy the challenge of a fully manual flight. External graphic clients For the D3D9 and D3D11 external graphic clients, some specific procedures can be needed. See this guide for further details: http://www.orbithangar.com/searchid.php?ID=5854 Technical description Engines F-1M The famed F-1 engine, developed for the Saturn V lunar rocket, still remains today the most powerful single-chamber rocket engine ever utilized in an operational spacecraft.
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