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Instruments:

Stratomaster Ultra Horizon XL

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Please use our Instruments Order Form for Mail or Fax orders.

The Ultra Horizon XL combines all the functions of all the previous Ultra models into one sleek looking instrument. It has 2 easily customizable display screens, which can be swapped at the push of a button. One screen, for example, can be made up to show your primary flight instruments while the other screen can be made up to show the attitude indicator and engine monitoring information. IT IS UP TO YOU to decide how it must look. In addition, a free PC software package can be used to easily customize your Ultra in the comfort of your armchair, and then later at a click of a button, download the configuration you have just created into the Ultra.


Ultra Horizon XL Display
Basic System Functions
  • Altitude to 40,000 ft (12,195 m) calibrated, 1ft dynamic resolution
  • Airspeed ASI analog and digital, TAS digital
  • Stopwatch
  • Glide and climb ratio to 1/99
  • Altimeter setting 28.30 - 31.30"Hg (QNH 960 to 1060 mb)
  • Quick select standard altimeter 29.92"Hg (QNE 1013 mb)
  • Mode-C Encoding (requires CNV-AT unit)
  • Time of day, Date for flight log entries
  • Air time since take-off (or lesson time)
  • Ambient temperature using external sensor
  • Up to two Fuel levels using flow sender or optional level senders
  • Fuel flow using optional flow sender
  • Current range estimate (range at current speed and fuel burn)
  • Fuel bingo estimate (time until tank empty)
  • Range calculator using manually entered ground speed
  • Air distance made good
  • Voltage. Supply to unit. Usually 12V battery.
  • VSI +/- 9 990 ft/minute (50.7 meters per second) range
  • Flight log storing up to 200 entries
  • Hobbs meter, presetable to current engine time
  • Density altimeter
  • Barometer for ambient pressure
  • Aircraft registration number display
  • Maintenance timer
  • Warnings for engine temperature, speed high, speed low, maximum altitude, low fuel level, etc
  • Alarm output to switch a warning lamp
  • Audio alarm output to drive a panel speaker or low level output for alarm tone injection into a suitably equipped headset or intercom system.
  • Master and slave modes for dual instrument setup
  • Measuring take-off run to 50 ft (15.24 m) above  ground level
  • Attitude Indicator/Artificial horizon (requires SP-4 sensor)
  • Slip indicator (requires SP-4)
  • Rate of turn indicator (requires SP-4)
  • Compass (requires SP-2)
  • Air  talk link for connection to:
    • PC's and Laptops using optional cable
    • Stratomaster 'Black Box' flight recorder
    • Stratomaster Ultra secondary instrument
    • Download keyring flight log device
    • Mode-C Transponser (requires CNV-AT unit)
    • Compass and AHRS sensor packages
RDAC "Remote Data Acquisition Computer" EMS  functions:

The Stratomaster Ultra utilizes a firewall-mounted RDAC (Remote Data Aquisition Computer) to collect and process data from sensors to minimize the number of wires passing through the firewall to the instrument unit. The RDAC features the following functions:

  • Four or twelve channel thermocouple amplifier, high resolution chopper stabilized system with full cold junction compensation and bow voltage correction to laboratory standards.
  • The inputs can accept K-type or J-type thermocouples (selectable  via provided menu functions)
  • The inputs can accept K-type or J-type thermocouples (selectable  via provided menu functions)
  • Oil and Water temperature NTC input compatible with most oil temperature senders and the MGL water temperature sender.
  • Also accepts MGL precision semiconductor senders for water and oil temperature.
  • Universal rev counter input. Can be used on a wide variety of engines using a variety of interface methods.
  • Fuel flow sender input. Can be used with most commercial liquid flow senders.
  • Calibration via provided menu functions.
  • Oil pressure sender input. Accepts most commercial oil pressure  senders including those from VDO.
  • Fuel level sender input with extensive calibration functions provided to allow direct readout of fuel quantity corrected for tank shape and sender tolerances.
  • LM335 sensor based temperature sender to indicate ice warning. The sender is normally fitted to the outside of a carburetor, in close proximity to the throttle slider or valve or in the intake airflow.
  • The EMS included with the Ultra provides for a wide variety of engines and the display unit can be configured in many different ways as outlined in the 'Device setup menu'.

Download Free Screen-Layout
Software Now!!

Download: Ultra Horizon XL screen designer and simulator (700 Kb)
(Requires PC, Windows 95, 98, ME, NT, 2000, XP. For simulation, 2.0Ghz PC minimum required)


Sample IFR Screen


Sample VFR Screen

Flight Log Functionality:

Perhaps one of the most useful features of the Stratomaster Ultra instrument is the ability to record a flight log.

You can setup your Stratomaster Ultra to record a log entry in one of the following ways:

  • Automatic flight log for normal aircraft. This will automatically detect the start of a flight and the end of a flight. The unit uses engine revs in combination with airspeed to detect a  flight. This is the way most pilots prefer to operate the Stratomaster Ultra.
  • Automatic flight log rotor craft. This operates similar to above but air speed is not taken into account. Instead, rotor speed above 70% of the 100% setting is used to mark possible start of a flight. If you select the split rotor/engine RPM display this mode is automatically selected.
  • Manual flight log. In this case the pilot manually starts a flight and ends it. This mode is used mainly if no rev counter input to the instrument is available. The Stratomaster Ultra will log all flights of longer than one minute. Any flights with less than one minute accumulated time are not stored in the log.

The Stratomaster Ultra will store the last 200 flights in the log.

At the end of a flight, the pilot number selected in the main menu will be written to the log entry for the flight. This can be used to log airtime of several pilots, for example with fractional ownership or aircraft owner club schemes. The log can  be viewed at any time. Please also note that the log may be downloaded to a PC using a direct cable connection or key-ring download device (optional extras). You can download the free Flight Log program here.

The following  information pertaining to a flight will be logged:

  • Date (DD/MM) of take-off
  • Take-off time.
  • Flight time. Displayed in either hours and minutes or hours and fraction of hours depending on setup.
  • Highest altitude reached (In ft or meters depending on setup)
  • Maximum airspeed obtained. Displayed airspeed depends on whether ASI or TAS is selected.  (Displayed in kilometers, miles or knots depending on setup).
  • Hobbs meter reading at end of flight/lesson (Displayed in either hours and minutes or hours and fraction of hours depending on setup)
  • Pilot number

Sonex/Stratomaster Ultra Packages
Sonex/AeroVee Package
Stratomaster Ultra Horizon XL

$1630.00

You must be logged-in as a Sonex Aircraft plans owner to view this product category.

Please use our Instruments Order Form for Mail or Fax orders.

Package Includes: Package Includes Ultra Horizon XL Instrument base unit, RDAC X Engine Information Computer, Qty 4 EGT Senders, Qty 4 AeroConversions CHT Senders, and the Sonex Fuel Level Probe. There is no wiring harness required as probes simply plug into the RDAC Computer unit.

Purchasing this unit from Sonex also includes installation and tech support from Sonex along with tech support from Sport Flying Shop

We recommend purchasing the Oil Temp and Oil Pressure Senders from Sonex to use with your AeroVee (not required for Jabiru Engine Installations).
Sonex/Jabiru 2200 Package
Stratomaster Ultra Horizon XL

$1630.00

You must be logged-in as a Sonex Aircraft plans owner to view this product category.

Please use our Instruments Order Form for Mail or Fax orders.

Package Includes: Package Includes Ultra Horizon XL Instrument base unit, RDAC X Engine Information Computer, Qty 4 EGT Senders, Qty 4 AeroConversions CHT Senders, and the Sonex Fuel Level Probe. There is no wiring harness required as probes simply plug into the RDAC Computer unit.

Purchasing this unit from Sonex also includes installation and tech support from Sonex along with tech support from Sport Flying Shop
Sonex/Jabiru 3300 Package
Stratomaster Ultra Horizon XL

$1750.00

You must be logged-in as a Sonex Aircraft plans owner to view this product category.

Please use our Instruments Order Form for Mail or Fax orders.

Package Includes: Ultra Horizon XL Instrument base unit, RDAC X Engine Information Computer, Qty 6 EGT Senders, Qty 6 AeroConversions CHT Senders, and the Sonex Fuel Level Probe. There is no wiring harness required as probes simply plug into the RDAC Computer unit.

Purchasing this unit from Sonex also includes installation and tech support from Sonex along with tech support from Sport Flying Shop

Stratomaster Options

Stratomaster Fuel Flow Sender

$205.00

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Please use our Instruments Order Form for Mail or Fax orders.

The Stratomaster Fuel Flow Sender enables your Stratomaster instrument to display additional fuel calculation data. The unit has the following features:

  • Dual Range fuel flow sender. Fuel flow from 3 liters/hour to as much as 500 liters/hour is catered for.
  • Compatible with 8mm and 12mm hoses and similar  imperial sized hoses.
  • Compatible with a wide range of fuels including those with methanol and alcohol content.
  • Mechanical failure of the sender will not block the fuel flow.
  • The fuel flow sender is compatible with all of MGL Avionics range of products.
  • Successfully fitted to every possible engine type including large aero engines.

Download the Stratomaster Fuel Flow Sender Manual

SP-2 Magnetometer (Compass sensor)

$240.00

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Please use our Instruments Order Form for Mail or Fax orders.

The SP-2 contains a three-axis magnetic field sensor and a 2-axis accelerometer. Featuring a high resolution 16 bit measurement system, a powerful ATMega processor is used to output tilt-compensated heading information. If an SP-4 AHRS is used on the same Airtalk communications link, tilt compensation is augmented using gyro data.
SP-4 AHRS Attitude (horizon) sensor

$950.00

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Please use our Instruments Order Form for Mail or Fax orders.

The SP-4 contains 3 MEMS gyros and 3 MEMS vibrating body accelerometers. Using a 16 bit data acquisition subsystem, a powerful ARM7 32 bit processor is used to provide stabilized attitude information. Together with an SP-2 magnetometer on the same Airtalk communications link, the gyro heading can be automatically slaved to the magnetic heading.
 
Stratomaster CNV-AT
for Mode-C Functionality

$65.00

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Please use our Instruments Order Form for Mail or Fax orders.

(Serial to Parallel converter for Airtalk to mode-c transponder):

This is a device that converts the serial altitude data from the airtalk protocol to Gillman codes suitable for connection to a mode-c transponder.
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