Simulation cockpit

Simulation cockpit

Simulation cockpits or simpits are environments designed to replicate a vehicle cockpit. Although many pits commonly designed around an aircraft cockpit, the term is equally valid for train or car projects.

'Simpit' is generally used to refer to amateur, home built, setups which are the focus of this article. For more information on commercial flight simulators please see Flight Simulator.

Aircraft Simpits

By their very nature aircraft cockpits tend to have complex controls, instrumentation, and radios not present in other types of simulation. Recreating these present specific additional challenges to anyone building a cockpit. Aircraft components are often expensive to purchase, and access to real aircraft cockpits is likely to be restricted due to security concerns, especially in the wake of the 9/11 attacks or if the builder has chosen a current military aircraft.

A way to avoid a lot of the pitfalls is to not replicate a specific aircraft, simply a class of aircraft. Thus creating a generic GA, airliner, or military cockpit, which while it will not have every button or switch of the real aircraft, will have all the key elements for simulation. The other end of the scale is to build an exact 1:1 replica of the real cockpit, utilizing real panels or even a complete cockpit from the chosen plane. All cockpit builds will be somewhere between these 2 concepts, and even highly accurate replica pits will often make some concessions, if only due to limitations of the simulation software driving them.

For replica pits the choice of aircraft will be key. With the growth of home cockpits there are a number of companies who sell complete kits for common aircraft. Thus details of current Airbus and Boeing aircraft panels are fairly easy to obtain. For older aircraft museums or aircraft scrap yards can be valuable sources of information. However while research will often locate a lot of information, sometimes it is a minor detail that is needed. For example how wide is the center pedestal, how far from the instruments is the warning panel, and how large should it be? Where the information is not in the public domain, more subtle techniques have been developed to obtain the information. For example pixel counting from a digital photo of the aircraft. By counting the pixels in an item of known size, for example a standard cockpit instrument, a scale can be established. This can then be used to estimate the size of unknown elements in the panel. Accuracy will vary depending on the quality of the photo located, the angle the shot was taken from, etc. However this can give a good guideline on dimensions in situations where there may be no other source of information.

The level of functionality will also vary within the 'pit'. Very realistic looking pits may have non functioning instruments, simply in place to complete the 'feel' of the cockpit. At the top end of realism would be individual real instruments, either modified from actual aircraft components or replicated. This approach provides the maximum immersion, but presents complexity with interface electronics and driver software needing to be fabricated. A compromise between the 2 is to display the instruments on a monitor and mount this behind the panel. The simulated instruments can then be seen through the cutouts which can give a realistic effect, especially if the aircraft uses 'glass cockpit' displays in real life.

Many pit builders go through the process of building a basic, low-spec compromise pit first, just to give them a dedicated environment to practice their hobby. The lessons learned in this process can be put to good use if they later decide to build a high-spec compromise or replica pit, which requires a great deal of time, effort and passion to complete.

General Aviation

Home based simulators have been a common training aid for private pilots for many years. Recently the increased power of home PC's and improvements in graphics and simulation technology has opened up further opportunities to utilize a PC as a training aid. While early simulators allowed instrument approaches to be practiced, with photographic scenery add ins pilots can now practice visual flights and navigation. Rehearsing a flight in the PC, before performing it in the real world, making training sessions in the real aircraft more productive. [cite news | first=Andrew | last=Herd | coauthors= | title=Flight Training software | date=2004-11-09 | publisher=Archant Specialist | url =http://www.pilotweb.aero/content/articles/view_article.aspx?id=3230 | work =Pilot | pages = | accessdate = 2007-10-26 | language = ]

Recognizing this market a number of suppliers provide ready to go desktop simulation products. Radio stacks, instruments, yokes, pedals, throttle quadrants, and seats are readily available from pilot shops. This allows a highly realistic GA cockpit to be put together in a matter of minutes. However an enthusiast is likely to extend well beyond the functional cockpit a trainee would require, adding in items to enhance the sense of disbelief. Enclosures, projectors, even real aircraft components or nose sections are commonly incorporated in the drive to make the experience as 'real' as possible.

Commercial Aviation

While General Aviation pits are often put together for real pilots to train on, commercial aircraft pits are often purely for entertainment. Very few people will have the opportunity to pilot a real airliner, however a realistic home simulator will provide a highly immersing experience.

Commercial airliner pits offer a greater challenge to builders as there are more systems to model such as the auto pilot, CDU/FMS, engine management, etc. Even the throttle quadrant is a complex piece of engineering compared to the simply replicated push / pull throttle used in the GA Cessna. However a number of commercial suppliers exist supplying replica panels, controls, even complete cockpits to the community. Where these or 'real' components are not available or are out of budget builders will often fabricate components at home out of wood or similar easily worked materials.

With most modern aircraft utilizing 'Glass Cockpit' displays it has become easier to create highly realistic panels. The displays on these panels can be driven by multi head graphics cards, or networked PC's running dedicated software that can read from the simulator spreading the processing load. Interfaces for switches, knobs, and other elements needed can be purchased commercially or created by dismantling existing hardware such as keyboards or joysticks. Feedback from the PC to the panel, for example to light warning lamps or move real instrument is more complex and normally completed through a commercial expansion board.

Military Aviation

The 3rd common genre for a simpit is the military pit. Like commercial pits these sims are more for entertainment than training. Military based pits are commonly based on a single aircraft, often the Falcon due to the availability of highly realistic simulation software (Falcon 4) of this aircraft.

Software

One of the first software requirements for a simpit is a suitable flight simulator to provide the graphics, sound and instrument outputs for the pit. To date, the majority of civilian simpits are built around Microsoft Flight Simulator, and most military pits use Falcon 4 as a base.

The choice is expanding as more simulation developers include data-out facilities in their sims. Most recently, [http://www.lo-mac.com Lock On - Modern Air Combat] has added data export through Lua, making it a serious contender for a modern jet simpit.

Voice communication (VOIP) software is commonly integrated into a simpit, as this allows real-time communication with other virtual pilots. The most popular choices at the moment are Ventrilo and TeamSpeak.

Other software may be custom written to control hardware aspects of the pit; e.g. an interpreter for an MFD or a custom listener to implement an AoA Indexer. In many cases the need for custom software can be removed by using control hardware with a comprehensive SDK or API, but when you really need that unique instrument and nobody has an off-the-shelf solution for it, hacking code is the only way to get it.

Examples

* [http://www.simkits.com/buildersection.php Simkits gallery]
* [http://www.f15sim.com F-15C Simulator based on F-15C 80-0007]
* [http://www.pedro-nogueira.com/A340/ Airbus A340 Cockpit]
* [http://matthewmwohlford.googlepages.com Generic Twin Engine Pit]
* [http://www.checksix-forums.com/showthread.php?t=104497 F-16 Simpit]
* [http://it.youtube.com/watch?v=N9cYiSAM2gY Video]
* [http://www.a320fd.com A320 Cockpit (Ger/Eng)]

External links

Simpits:
* [http://www.midlandsimulators.co.uk/ Helicopter simulator]
* [http://www.simpits.org/ Simulation Cockpit Builders Group]
* [http://a.webring.com/hub?ring=cockpits Simpit WebRing]
* [http://www.fscockpit.com FScockpit: introduction to flight simulator cockpit construction]
* [http://www.viperpit.org/ ViperPit Forum - the definitive forum for F-16 pits]
* [http://forums.frugalsworld.com/vbb/forumdisplay.php?f=48 Frugalsworld Simpit Forum]
* [http://www.eagle9.nl Home of F4Glass Falcon 4 glass instruments]
* The Lua programming language (simulation data export)
* [http://www.sim-instruments.com/ SIMInstruments simpit hardware (commercial)]
* [http://www.simkits.com Simkits simpit hardware(commercial)]
* [http://www.microcockpit.com/ EPIC hardware interface (commercial)]
* [http://www.mikesflightdeck.com Mike's Flight Deck - introduction to simpit building]
* [http://www.62ndfightingfalcons.asn.au/ The Akers-Barnes portable simpit design]
* [http://www.hovercontrol.com/cgi-bin/ib3/ikonboard.cgi?s=23394044372431f0bc263cb44ce94b6c;act=SF;f=43 Helicopter simpits at Hovercontrol]
* [http://www.fighterops.com/forum/forumdisplay.php?f=58 Fighterops.com Simpit builders forum]
* [http://www.virtual-aviation.info/Cockpit/ Cockpit builders directory]

Electronics for pitbuilders:
* [http://www.allaboutcircuits.com allaboutcircuits.com - excellent basic electronics and helpful forum]
* [http://forums.bit-tech.net bit-tech forums - active modding forum with lots of useful topics]
* [http://www.mikesflightdeckbooks.com Mike's Flight Deck Books: source for book on building simulated aircraft instruments (commercial)]
* [http://www.touch-buddy.com TouchScreen application for building fully programmable ICPs, MFDs etc]
* [http://cockpitsolutions.com/flyware/ FSXpand - Simulates Aircraft Instruments]
* [http://www.rossmeeks.ca/?p=3 How to create an inexpensive generic panel with no electronics knowledge]
* [http://www.cockpitsonicusa.com Suppliers of parts (Plug and Play) for the simmers with no electronic knowledge ]

Sims:
* [http://www.flightgear.org FlightGear (free/open-source sim)]
* [http://www.combat-helo.com Combat Helo (free sim in development)]
* [http://www.x-plane.com X-Plane (commercial sim)]
* [http://www.f4hq.com Falcon 4 (commercial sim)]
* [http://www.lead-pursuit.com Falcon 4: Allied Force (latest commercial version of Falcon 4)]
* [http://www.lo-mac.com Lock On - Modern Air Combat (commercial sim)]
* [http://www.il2sturmovik.com/ IL2 Sturmovik: Forgotten Battles (commercial sim)]
* [http://www.pacific-fighters.com/ Pacific Fighters (commercial sim)]
* [http://www.microsoft.com/games/flightsimulator/ FS2004 (commercial sim)]
* [http://www.fighterops.com Fighter Ops (commercial sim in development)]

* [http://www.ventrilo.com Ventrilo]
* [http://www.goteamspeak.com TeamSpeak] .

References


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