Trident Panel Manual
Panel Manual VC extras Checklists Flying Tips

Main Centre Autopilot Fuel Overhead Starter Radios
Centre Panel
The centre panel is dominated by the motorized moving doppler map as fitted to the BEA & BA Tridents (and a few other airlines).  Sadly this wonderful piece of kit does not work at all in FS.  Not all that inaccurate by most accounts!
As well as providing the authentic Trident look, it does provide a very useful space for a pop up auto pilot window.
The various levers across the bottom of the doppler map are, from left to right:-
Spoilers, Parking brake, Throttles, Gear.  All the levers are clickable.

N2 engine revs.

Exhaust Gas Temperature

Temperature in Celsius.
The temperature should be under 600 degrees.

Thrust Index

The real aircraft had tables of thrust index settings, according to temperature & pressure.
The pilot set the relevant index number (the yellow numbers in the centre) so that during take off the gauge reads a true power level for the conditions.
The gauge does work in FS and will automatically calculate the index number using the current temperature & pressure.
The lower the index number is, the more power is needed to produce the 'normal' thrust level.  The pointer should always read 100% during take off and if it can not reach this level take off should be aborted.
You can manually alter the index number by clicking on the bottom half of the gauge.  Clicking the top half of the gauge resets the index number according to the current temperature & pressure.

Radio Altimeter

This is a simple radio altimeter that is active from 1000 ft & measures from 700 ft.
Over 1000ft, the orange/black flag is displayed.
A green 'Kick Off Drift' flag is displayed to indicate when auto rudder is active during an autoland.  This is also indicated by a blue 'Rudder' light on the glareshield, which can be pressed to cancel auto rudder.
Kick off drift is when the rudder is used to straighten the aircraft onto the runway line just before touchdown.
The yellow decision height bug can be moved by clicking the gauge.

Distance To Go

Can provide a runway 'Distance to go' count down during takeoff or landing.
The pilot would set in the available distance & the gauge would count it down as the main wheels moved along the runway.
You can set the available distance by clicking on the gauge, right side to increase, left side to decrease.
Once the wheels start to move, the distance reduces.
This equipment, along with the PVD centre line indication was certified for low visibility take off.
When the unit is not in operation, a yellow bar covers the distance reading.  This happens automatically after a take off.
The scale across the top shows ground speed in knots (0-100).

Drift Degrees

Calculates & displays the current amount of drift in degrees due to any crosswind component.
Also shows the ground speed in knots.
Use this to work out the corrected heading to fly to stay on course.
The drift is also conveniently displayed on the HSI (main panel).

  RMI   (Radio Magnetic Indicator)

Gives both ADF  (Automatic Direction Finder) and VOR (VHF Omnidirectional Range) direction for whatever beacons are tuned in (NAV1,NAV2,ADF1,ADF2).
The single lined arrow shows the direction for NAV1 or ADF1 & the double lined arrow is for NAV2 or ADF2.
The indicators above display which type of signal is being received, one of 'VOR', 'ADF' or blank is displayed.
In FS these indicators can be clicked to switch between VOR & ADF if both types of signal are currently available.

This RMI is accurate in that it can not point to any ILS signal.

A VOR beacon radiates separate beams for every degree of the compass. ADF beacons are less complex devices than VOR beacons.  They only emit a single signal & are less accurate than VOR.

DME  (Distance Measuring Equipment)

These display the distance to any DME supporting beacon that is tuned into your NAV receivers.
DME1 (top) runs off NAV1, DME2 (bottom) runs off NAV2.
Distance is displayed in nautical miles.
Most VOR & ILS beacons support DME, but some do not.
If no DME signal is being received, the gauge shows a yellow line across the numbers.
Later DME equipment also displayed ground speed & estimated time to the beacon.  This information is available if you move over the gauge with the mouse cursor.

Turn Coordinator

Shows a central position with three standard rate markers each for left & right turns.
The outer marker shows a standard 2 minute rate turn (time taken for a full 360 degree turn).
The middle marker shows a half rate turn (ie. it would take 4 mins to do a 360 degrees turn).
The inner marker (half line) shows quarter rate.
It is usual to use only half rate (or 4 min turn rate) in a large jet.
The turn is considered 'coordinated' when the bubble indicator is central.

Flap Position

Shows the position of the trailing edge flaps.
The gauge can be used to move the flaps by clicking with the mouse.  Click on the top half to raise a notch, click on the bottom half to lower a notch.
On the Trident FS model, the slats extend on their own with the first notch of flaps.
The flap settings for the model are:-
All Up
Slats Down, flaps up
10 degrees - Takeoff
16 degrees - Take Off
23 degrees - Take Off
28 degrees - Approach
45 degrees - Landing

Slat Position

Shows the position of the leading edge slats, Up or Down.
On the Trident FS model, the slats extend on their own with the first notch of flaps.

Auto Land & PVD Mode

The blue light is lit if the auto rudder is active during auto land. Auto rudder performs an automatic kick of drift procedure to align the aircraft with the runway before touchdown.
Auto rudder can be switched off by clicking the blue light.

If auto land is selected (on the auto pilot), the Landing Integrity indicator displays green.  If auto land is not in operation it displays red with a white 'MAN LAND' text.

The switch on the right is the PVD mode selctor.  Turned to the left is Normal mode, where flight director information is displayed through the PVD 'barber pole' (main panel).  Turned to the right is Take Off mode, where the PVD displays relative to the runway centre line, using the ILS beam tuned in on NAV1.

Landing Gear Indicators

The round gauge shows the status of the landing gear, left / centre / right.
If the landing gear is raised & locked up, no lights are lit.
If the gear is in transition the red lights at the top are lit.
If the gear is down & locked the green lights at the bottom are lit.
The amber lights at the top show when the gear doors are open.

Auto Pilot Channels Indicator
Shows round 'IN' flags for Roll & Pitch when the auto pilot is active.
Also shows visual representation of roll commanded by the auto pilot.

Tail Trim

This shows the position of the variable incidence tailplane.  This is the Trident's elevator trim (or pitch trim) setting.  The scale only shows maximum nose UP & maximum nose DOWN (roughly 8 degrees either way).
The tailplane is level when the pointer is at 3 O'clock.
The model usually needs around 2.5 degrees nose up for takeoff, otherwise it may not rotate at the correct speed.
The gauge can be used to move the tailplane by clicking with the mouse.  Click on the top half for more nose up trim, click on the bottom half for more nose down trim.
This gauge has been exaggerated in size for the FS panel as the real thing is only just visible to the naked eye!

Booster Engine

Operates the booster engine (Trident 3 models only).
The booster engine has five states - Off, Idle, Flight Idle, Climb, Take Off.
The blue 'Stop' light (bottom left) is lit when the engine is off but still turning.  Click the blue light to stop the booster engine.
The booster is started by the booster starter panel on the overhead panel.
The switch selects either Idle or Climb mode, with the needle showing the power output.
Take off power is only reached if Climb mode is selected & the main engines are at take off RPM.
Otherwise the booster engine does not repond to throttle changes & operates at a fixed level.

To get the best possible simulation of the booster, it has been set up as a proper 4th engine in FS.  FS does not allow different power ratings for individual engines, so the booster always runs at lower throttle settings to achieve the correct level of power.
Under normal circumstances the booster is not needed.  It is only required at heavy weight (or high temperature) when the takeoff run is under 2000 metres.


Counts minutes & seconds.
Click to start, click again to stop, click again to reset to zero.
If you stop over it with the mouse it gives the current time in FS.

Brake Pressure

The green gauge shows the parking brake pressure applied to each side of the main gear.
The yellow gauge shows the toe brake pressure applied to each side of the main gear.