Dassault Mirage F1 development

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Some details on the Dassault Mirage F1 development development currently underway.

The Avail field in the status tables below indicates whether a feature is available in the development repository, either in the develop branch, the master branch or both. Partial indicates that an item is available with only partial functionality and N/A that it is available, but entirely non-functional.

Main development goals

  • Modularity to make it possible to make all variants with as little additional work needed as possible
  • Adopt most of Helijah's category structure
  • Clever use of inclusions and animations related to the cockpit to
    • Have fewer range animations (hopefully only a handful for the entire cockpit, instead of one for each instrument)
    • Make it possible to place instruments and panels only using an x and y position for each instrument or panel
  • Multiplayer livery system
  • Etc.



FDM

With 1000 liter fuel on board the FDM more or less allow approach and landing airspeeds by the F1ZC flight manual (60° break at 350 kt, downwind all but airbrake out decelerating from ~215 kt to 160 kt, final turn at 150 kt, touch down at 135 kt) (from in-sim flight tests it seems that below about 200 kt you can add about 1 kt per 100 liter fuel above 1000 liter).

External aircraft models

Model Progress Developer Remarks
External model  ? Alexis Renderings can be found in this topic on the French forum
Alternative external model  ? Flying Toaster Renderings can be found in this topic on the forum

Misc external models

Various things commonly seen around the aircraft while on the ground.

Model Avail Progress Developer Remarks
Steel tube wheel chocks No 10}% completed Johan G I have not found any solid data like manufacturer, 3-views or dimensions yet, only reference images
Cockpit ladder No
2MB International MB20 tow tractor No 20}% completed Johan G
Guinault Multi purpose GPU* No *Ground power unit
Wheeled fire extinguisher No Have yet to figure out make and model
Drain tank/vagon No Often seen under the engine of parked aircraft

Instruments etc

This section is incomplete. Please help improve the article, or discuss the issue on the talk page.


Note  Instruments may not be connected to properties yet

Misc instruments

In essence those above the glare shield.

Model Avail Progress Developer Remarks
Cockpit clock, Dodane Type 11 Yes 90}% completed Johan G Needs glass shader and some wear on the texture.
Cockpit clock, Breguet Type 11 No 10}% completed Johan G
Cockpit clock, Dodane Type 211 No Pending Pending Johan G Used by Moroccan air force
Standby compass, Vion Type 143 No 50}% completed Johan G Used mostly in older aircraft
Standby compass, Satori T15 No Pending Pending Johan G Have not found any 3-views and very few reference images.
Incidence indicator No 30}% completed Johan G
Accelerometer Partial 80}% completed Johan G Min and max needle properties not used as of now. Needs tuning.

Main instrument panel

Model Avail Progress Developer Remarks
RWR indicator, compact, square No
RWR indicator, compact, angled No
Flare and chaff control panel No There are at least two variants.
Autopilot control panel Partial 90}% completed Johan G Needs fine tuning
Master failure warning light Yes 90}% completed Johan G Needs fine tuning
Configuration indicator Yes 90}% completed Johan G Needs fine tuning
Combat flap light No Pending Pending Johan G
Airbrake light Yes 80}% completed Johan G
Nose wheel steering sensitivity light No Pending Pending Johan G
RWR indicator, less compact No
Shock cone position indicator N/A Currently an extra Mach meter
Airspeed indicator Yes Need to be lit by UV lights and red floodlights
Enginge and afterburner fire light No Pending Pending Johan G
Engine rpm indicator No Currently an altimeter(!) Need to be lit by UV lights and red floodlights
Afterburner indicator lights No Pending Pending Johan G
Jet pipe temperature indicator Yes Need to be lit by UV lights and red floodlights
Slaved altimeter No
Standby altimeter Partial Currently located where the engine rpm instrument should be(!)
ADI Yes Should be replaced. There are at least two variants
Dual fuel gauge No 10}% completed Johan G
Fuel transfer indicator No 20}% completed Johan G
Fuel remaining indicator Yes 90}% completed Johan G Needs fine tuning
F1CR fuel panel No Pending Pending Johan G
Navigation indicator No There are at least two variants
Radar No There are at least two variants
Multi-function display No Probably various variants
Vertical speed indicator N/A Currently broken
Standby horizon Partial Lacks caging, and possibility to adjust the aircraft

Left aux panel

Right aux panel

Model Avail Progress Developer Remarks
Failure warning panel No 40}% completed Johan G

Center console

Model Avail Progress Developer Remarks
Trim indicator Partial 80}% completed Johan G Range could be scaled better. Is tricky to read.

Left aux console

Left console

Model Avail Progress Developer Remarks
UHF/VHF Radio No "Green" radio
VHF Radio No "Red" radio
Audio control panel N/A Pending Pending Johan G There is currently a dead model there

Right console

Model Avail Progress Developer Remarks
Oxygen regulator No
Lighting control panel (F1CZ) Partial 70}% completed Johan G Needs tuning

Systems

Summary

This relates to the systems only, not their users (for example if instruments respond to the cockpit lighting properties).

Model Avail Progress Developer Remarks
Cockpit lighting Partial 90}% completed Johan G
External lighting No
Air-to-air refueling Partial 90}% completed Johan G
Flaps and slats No Enrogue
Auto slats and combat flaps No 30}% completed Johan G Need pitot-static and rudimentary ADC
Pitot-static system Partial 90}% completed Johan G
Failure warning system Partial 20}% completed Johan G Only warnings, not failures
Autopilot No
Fuel system Partial Enrogue

Lighting

Cockpit lighting

Properties for the lighting are located in the /controls/lighting/ and /controls/switches/ subtrees and are persistent between FlightGear sessions.

The properties are based on cockpit lighting of the South African F1CZ. Judging from other lighting control panels it seems that there is little difference between variants, even though size, arrangement and location of the lighting control panel varies.

Currently (Feb 2015) not all of the instruments uses these properties. Some of the older ones use instrument-norm instead.

Property Used for
consoles-external-norm Red floodlights lighting the consoles, aux consoles and aux instrument panels
consoles-internal-norm Internal lighting of panels and instruments on the consoles
dimmer-norm When night-lighting=true it should control lighting of failure warning panel, indicator lights and various panels
map-norm Overhead white map light
misc-norm Lighting for the cockpit clock, standby compass, incidence indicator and, when mounted above the glare shield, the accelerometer
misc-lighting Switch that turns off all but the incidence indicator tape
night-lighting Day/night switch
panel-external-norm Red floodlights lighting main instrument panel
panel-internal-norm Internal lighting of panels and instruments on the consoles
panel-uv-norm UV floodlights lighting main instrument panel

misc-norm and map-norm will be controlled by knobs under a box behind the cockpit clock. The rest of them are controlled through a lighting panel on the right console.

In addition some of the instruments have their own individual lighting, in particular the incidence indicator (though partial) and the autopilot control panel.

Currently (Feb 2015) the lighting is not connected to an electrical system.

External lighting

Currently (Feb 2015) inexistent.

Air-to-air refueling

The aircraft have an probe for air-to-air refueling (AAR) and can be refueled by any compatible tanker.

The contact distance within the fuel will be offloaded is per default 25 meters (slightly less than 100 ft). This can be changed in the AI tanker menu.

Temporary status lights

None of tanker aircraft currently (Feb 2015) have any signal lights showing the status of the refueling. As a temporary measure two status lights have been added to the right frame of the HUD, an upper amber one and a lower green one. They function as below:

Amber Green Meaning
- - Refueling system serviceable
- - Contact
- - Tanks full or system not serviceable

The system is serviceable per default and the amber light is lit. If that is annoying, the system can be disabled by opening up the property browser and setting /systems/refuel/serviceable to false.

AAR Issues

As of Feb 2015 the develop branch have a fuel system that can be refueled in flight when the tanks have been emptied. This was previously not possible without first opening the Fuel and Payload dialog and adding a little fuel in each tank.

Pitot-static system

A nearly complete pitot-static system have been added Feb 2015. It consists of:

  • Two pitot tubes:
    • T1 /systems/pitot[0] – Left side of forward fuselage on the real aircraft
    • T2 /systems/pitot[1] – Right side of forward fuselage on the real aircraft
  • Four static ports:
    • S1 /systems/static[0] – Left side of nose probe on the real aircraft
    • S2 /systems/static[1] – Right side of nose probe on the real aircraft
    • S3 /systems/static[2] – Left side of forward fuselage on the real aircraft
    • S4 /systems/static[3] – Right side of forward fuselage on the real aircraft

At some point T1, S1 and S2 will be heated by DC power and T2 by AC power. S3 and S4 will remain unheated.

A few instruments are connected to those pitot tubes and static ports. Instead of having several instruments declared using the same ports some instruments and/or devices will share instruments.

Instruments connected to T1 and/or S1 are:

  • /instrumentation/airspeed-indicator[0]
    • Mach/airspeed indicator
    • Airspeed switches for the flap and slat safety system, yet to be implemented
      • Airspeed aneroid switch for the 2nd slat limit
      • Airspeed aneroid switch for the 2nd flap limit
      • Mach number switch
  • /instrumentation/altimeter[0]
    • Standby altimeter, yet to be implemented

Instruments connected to T2 and/or S2 are:

  • /instrumentation/airspeed-indicator[1]
    • The HUD, for now
    • Airspeed and Mach for the air data computer (ADC), yet to be implemented
    • Airspeed aneroid switch for the 1st flap limit
  • /instrumentation/altimeter[1]
    • The HUD, for now
    • Altitude for the air data computer (ADC), yet to be implemented
    • Altitude for the autopilot

Instrument connected to T2 and S3 is:

  • /instrumentation/airspeed-indicator[2]
    • Dash-pot airspeed, yet to be implemented. Part of the yet to be implemented FCS (non-digital).

Instruments connected to S3:

  • /instrumentation/altimeter[3]
    • Cabin regulator, yet to be implemented
    • Vertical speed indicator

Flaps and slats system

The Mirage F1 is equipped with hinged and slotted slats on the leading edges and slotted flaps on the trailing edges. Currently (Feb 2015) there is no automation. The slats are driven by /controls/flight/slats in three steps (in, half, full) and the flaps are driven by /controls/flight/flaps in three steps (in, half, full). The slats also are not animated.

Regular slats and flaps

At some point the slats and flaps will be linked together, so that the slats will be fully extended if the flaps are extended in either half or fully.

Auto slats and combat flaps

At some point safety systems and automation will be added to automatically extend the slats halfway at high incidences and within the airspeed envelope.

In addition there will at some point also be safety systems to extend combat flaps.

The only difference between combat flaps and normal half flaps (and full slats) is the addition of systems that will extend and retract them within a safe envelope. The combat flap control (located on the throttle) will arm the combat flaps, which will extend when airspeed have dropped within the safe envelope. Similarly they will automatically be retracted when getting outside the safe airspeed envelope.

The safety systems are driven by airspeed switches on aneroids connected to the pitot-static systems and by airspeed limit signals from the air data computer.

Failure warning system

Only warnings, not failures.

The master failure warning light (otherwise called the master caution light) and properties to control it are available. They properties resides in the /instrumentation/master-failure-warning subtree.

The warning horn and properties to control it are available. They properties resides in the /instrumentation/warning horn subtree. In addition there is a warning horn switch property /controls/switches/master-warning-horn. It has four sounds:

  • Oxygen regulator
  • Master failure warning
  • Limits
  • Incidence limit

The above are mainly instruments. Currently (Feb 2015) a failure warning panel is in the works as well as a system with signals that would trip the warning horn and master failure warning light and signals that would reset the two latter.

In addition there should be signals that would trip the envelop limit light and undercarriage light, etc.

Autopilot

While there is an autopilot control panel it is currently (Feb 2015) not connected.

Developing a custom autopilot matching the original in controls and functionality would be lovely.

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