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McDonnell Douglas F-15 Eagle

2,002 bytes added, 16:45, 26 September 2016
Added the {{Boeing}} template.
{{Infobox aircraft|image = F-15.jpg|alt = External view|image2 = F-15-Cockpit.jpg|alt2 = Cockpit view|name = McDonnell Douglas F-15C/D|type = All-weather tactical fighter|authors = Richard Harrison, Enrique Laso, Gene Buckle|status-fdm = 5|status-systems = 5|status-cockpit = 5|status-model = 5|fdm = [[JSBSim]]|fgname = * f15c* f15d* f15dbs|ready = dualcontrol/airrefuel/rembrandt/canvas|download = http:{{PAGENAME}}//www.zaretto.com/content/f-15-simulator-flightgearinfo}} The '''McDonnell Douglas''' (now [[Boeing]]) '''F-15 Eagle''' is an American [[:Category:Twin-engined engine aircraft|twin-engine]], all-weather tactical [[:Category:Fighter aircraft|fighter]] designed by [[McDonnell Douglas]] to gain and maintain air superiority in aerial combat. Following reviews of proposals, the United States Air Force selected McDonnell Douglas' design in 1967 to meet the service's need for a dedicated air superiority fighter. The Eagle first flew in July 1972, and entered service in 1976.
The Eagle boasts an all-service kill ratio of 104:0. The F-15 downed the majority of Iraqi aircraft in the Gulf War of 1991, and the same in the Balkan conflict of 1999.
The variants of the F-15 modeled in FlightGear are the '''F-15C''' (single-seater) and the '''F-15D''' (two-seater training variant).
== Overview Features ==* F-15C and F-15D D variants, including aerodynamic effects.* Realistic [[FDM]] based on windtunnel-derived aerodynamic data found in (AFIT/GAE/ENY/90D-16). Ref: <ref>[http://www.zaretto.com/content/f-15-flight-simulator-aerodynamic-data-flightgear F-15 Aerodynamic data sources]</ref>* Photorealistic 3D Cockpit cockpit with real cockpit textures provided by GeneB Gene Buckle from his unique [http://www.f15sim.com/ F-15C 80-0007Eagle Flight Simulator Project].* Operational weapons and radar.* Full range of sound simulation (buffet, gear, engines, etc..). Cockpit aural warnings including voice.* [[Canvas]] radar, and [[HUD]], {{Abbr|VSD|Vertical Situation Display}}, {{Abbr|TEWS|Tactical Electronic Warfare Suite}}, and {{Abbr|MPCD|Multi-Purpose Color Display}}.* Refuelling, and stores.* In -cockpit engine start (including {{Abbr|JFS |Jet Fuel Startup}}).* Hydraulics system modelModelled hydraulic and electrical systems.* Electrics system model* New [[ALS technical notes#The exhaust flame effect|ALS afterburner flames (ALS, ]]. These flames are [[Rembrandt supported) (with luminosity variance depending on scene brightness)]]-compatible and adjust to take into account ambient lighting.* External and internal [[Rembrandt ]]-compatible lighting.* Modelled {{Abbr|ECS system model|Environmental Control System}}, (including pressurisation, windscreen temperature, and frosting).* Control actuator system model.* Caution / Overload Warning System.* Caution/warning system.
=== Simulation Fidelity and limitations ===
* The windtunnel data is valid for a clean configuration at Mach 0.6. The aerodynamic model has been adapted to the entire range of the aircraft, Mach 0 to Mach 2.5.
* Forces and moments for flaps, gear, stores, have been added based on parameter estimation and by using data from other reports. These been validated by comparison with plots from various reports and results are within a tolerance that is acceptable for a desktop simulation.
* ECS, HYDS, and Electrics systems models are reasonably simplistic simplified and do not accurately follow the schematics for the aircraft.
* Timings for gear, cockpit opening are based on observation of video evidence.
* The MPCD is restricted to only implement a few pages, notable PACS
F-15D-at-cruise.jpg|F 15D at cruise
== Flight Controls ==
=== {{Abbr|ARI|Aileron Rudder Interconnect}} ===
The {{Abbr|ARI|Aileron Rudder Interconnect}} is a system that automatically applies rudder based on aileron movement (designed to work as an aid as it's what a good pilot should do anyway). The schedule adjusts based on configuration and airspeed. The system is disabled above Mach 0.9 or whenever the landing gear is deployed.
=== {{Abbr|CAS|Control Augmentation System}} ===
The CAS system is a three channel system (Yaw, Pitch, Roll). The YAW channel is basically a yaw damper, the pitch channel is basically a pitch damper and the roll channel is a roll rate limiter. It is not recommended to fly with the YAW CAS channel disabled and is liable to result in serious yaw oscillation at higher mach. If any of these systems are disabled (or inoperative) a warning light will be visible on the caution / warning panel.
=== Pitch Ratio and Roll Ratio ===
The {{Abbr|CADC|Central Air Data Computer}} adjusts the amount of surface movement of the elevator, ailerons and differential elevator per inch of stick movement based on the airspeed to improve the controllability at higher speeds. Both of these systems can be turned off at the roll ratio is on the MISC panel on the left console, the pitch ratio switch is on the centre panel next to the landing gauge. There is also a gauge on this panel which indicates the current pitch ratio either 0.5 in the emergency mode or the value determined by the {{Abbr|CADC|Central Air Data Computer}} .
== Aural Warnings (v1.2f) ==
The following audio warnings are given;
* AOA > 25 (900hz beep beep pause)
* AOA > 30 and gear down (1600hz beeping)
* 85% to 91% of maximum G loading reached (900hz 4 times per second)
* 92% to 95% of maximum G loading (900hz 10 times per second)
* 96% to 100% of maximum G loading (continuous 900hz tone)
* Gear not down when below 200 kts. (900hz beeping)
* Voice warnings for:
# Whenever the Master Caution light illuminates (CAUTION)
# Bingo Fuel
# More than 100% of maximum G loading (OVER-G)
The {{Abbr|OWS|Overload Warning System}} calculates the maximum permissible G loading based upon the current configuration.
== Cockpit ==
When Master ARM is on the currently selected weapon type is displayed with the currently selected targetting information on the right. Targets are displayed on the HUD as a box. The currently selected target is a double box.
When AOA is greater than 20 degrees, or when the gear is down the AOA is displayed, otherwise the Mach number is displayed.  The current vertical G loading is displayedon the bottom left, with the current maximum permitted G loading displayed next to this. If the Overload Warning System is inoperative "NOWS" when the overload warning system is inoperable (which is currently all will be displayed in place of the time as this system is not simulated)maximum loading.
The route manager is integrated into the autopilot and when a route is being followed the route manager the routing information will be displayed on the right.
* [http://zaretto.com/f-15 Development page, additional information, and alternative download]
 [[Category:{{Boeing]][[Category:Fighter aircraft]][[Category:Twinjets]][[Category:Interceptor aircraft]][[Category:Fighter aircraft]]}}
[[fr:F-15C Eagle]]

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