BOEING 707-120 and 720 panel - Basic Flight Instruments

The Airspeed and Mach Indicators

Airspeed indicatorThe Boeing 707 airspeed indicator has a slightly different scale to the ASI in the default FS2004 737, and this panel reflects this. You may also note that the instrument has no digital readouts whatsoever. The "V" icon above the ASI opens a popup window displaying V-speeds for take-off and landing. Mach meter

Since there is no Mach reading on the ASI, a separate Mach meter is required - it is located below the Turn Co-ordinator.

Image of altimeter

The Altimeter

This panel's altimeter uses the needle to indicates hundreds of feet, while the window on the right indicates thousands of feet. A window on the left indicates the current barometric pressure settings.

The Clock

The 707 is fitted with an analogue clock with hour, minute and second hands. To adjust the clock, there is a knob at the lower right which increments/decrements by 1 minute per click. When passing through zero, the hours change accordingly, as with a real analogue clock. However, to speed up setting time, there is an extra knob at the lower left which adjusts hours directly. Note the small inset clock above the main clock - this reads Zulu Time.

Clock
Image of RMI

The RMI

This instrument has two switches, permitting the needles to be switched between pointing to the VOR, or the ADF. The latest version of this panel has two ADF radios.

The DME

Below the RMI, there is a readout for the distance to DME (DME 1 for the Captain and DME 2 for the First Officer).

DME
Turn Co-ordinator

The Turn Co-ordinator

The needle indicates the rate of turn, while the ball indicates slipping or skidding of the aircraft. If you have Auto-Coordination switched on in FS2004, the ball will always be centred.

The Attitude Indicator

This attitude indicator is typical of early 707 and 720 aircraft. Unlike most attitude indicators in present-day use, the background only moves in roll, while pitch is indicated by motion of the aircraft symbol. A glideslope indicator is included on the left hand side, and a flight director roll bar across the face of the instrument.

Image of Attitude Indicator
Image of HSI

The Course Deviation Indicator

This instrument is similar to the Horizontal Situation Indicators on newer aircraft, but lacks a glideslope indicator. Note the setting knobs on the instrument - the left one sets the OBS course, while the right one sets the target heading for the autopilot. A numeric readout of the currently selected OBS course is also included.

Water Injection Switches (707-120 only)

These provide a small boost in takeoff power for the 707-120's JT3C-6 turbojet engines.  This is highly welcome, given that without water injection these engines only give 11,200 lb thrust!  Water is available for 150 seconds.

Image of Attitude Indicator

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