Page 25 - December 2019

Elevator Horizontal Situation Indicator
The elevator is a moveable part of the horizontal The horizontal situation indicator (commonly called
stabilizer, hinged to the back of the fixed part of the
the HSI) is an aircraft flight instrument normally
horizontal tail. The elevators move up and down mounted below the artificial horizon in place of a
together. When the pilot pulls the stick backward, the
conventional heading indicator. It combines a
elevators go up.
heading indicator with a VHF omnidirectional range-
FlyWithLua instrument landing system (VOR-ILS) display.
FlyWithLua is an X-Plane plugin which allows users to
Instrument Landing System (ILS)
add additional features to the simulator. These include:
An instrument landing system enables a pilot to land
removing haze, improved clouds, airport traffic, maps an airplane by instrument approach when the pilot
and charts, plus many other features.
cannot see the runway.
FlightGear
JoneSoft Generic Mod Enabler (JSGME)
FlightGear Flight Simulator (often shortened to The JoneSoft Generic Mod Enabler allows simmers
FlightGear or FGFS) is a free, open source multi-platform
to easily enable and disable mods - for example
flight simulator developed by the FlightGear Project
winter scenery textures in X-Plane.
since 1997.
Lockheed Martin Prepar3D
FMOD
In 2009 Lockheed Martin announced that they had
FMOD is a high quality commercial sound engine and
negotiated with Microsoft to purchase the
sound authoring environment for games.
intellectual property (including source code) for the
FSUIPC Microsoft ESP (Enterprise Simulation Platform)
FSUIPC is a small utility which allows third-party product. Microsoft ESP is the commercial-use
programs to interact with the 'inner workings' of version of Flight Simulator X SP2. On May 17, 2010,
FS2004/FSX/P3D. Lockheed announced that the new product based
upon the ESP source code would be called Lockheed
Graphics Processing Unit (GPU)
Martin Prepar3D (P3D). Lockheed hired members of
A graphics processing unit (GPU) is used to display the
virtual world you fly in. A fast GPU can render scenes the original Aces Game Studio team to continue
development of the product.
very quickly (frame rate), whilst GPUs with greater
memory, can display higher detail (textures). As GPUs
have increased in power, so too has the visual detail in
flight simulators.
Heading Indicator
The heading indicator (also known as the directional
gyro, or DG) displays the aircraft's heading with respect
to magnetic north when set with a compass.
HDR Lighting
High-dynamic-range rendering (HDRR or HDR rendering),
also known as high-dynamic-range lighting, is the
rendering of computer graphics scenes by using lighting

calculations done in high dynamic range (HDR).
Magnetic Compass
The compass shows the aircraft's heading relative to
magnetic north. Errors include variation, or the
difference between magnetic and true direction, and
deviation, caused by the electrical wiring in the
aircraft, which requires a Compass Correction Card.