Stratomaster Ultra L / X / RL / H / HL / HX
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The Stratomaster ULTRA is the very latest in state of the art - glass cockpit, Primary Flight Display (PFD) and Engine Monitoring System (EMS) instrumentation for use in light aircraft.

The Ultra which comes in 6 different models is designed specifically for use in aircraft with open or enclosed cockpits. Able to give excellent viewing quality in daylight and poor light conditions under low and high temperatures, the Stratomaster Ultra is the top performing digital glass cockpit available for light aircraft.

Providing a multi-channel EMS as standard, the ULTRA gives you the ability to keep a close watch on your engine and to optimize your engine performance. The EMS is highly configurable in true Stratomaster fashion and is therefore suitable for a large range of engines from small two-stokes to four cylinder four strokes as well as some 6 cylinder models. Rotax engines are of course usable from the 447 to the 914 but the EMS is not limited to just Rotax engines - connect just about anything you like, from VW to Jabiru to Subaru and you are covered.  Don't leave the ground without one! 

	Trike fitted with Stratomaster ULTRA in flight. Configuration shows typical Rotax 582 setup, in this case the instrument shows 2 EGTs, coolant temperature, RPM, fuel tank level and fuel flow and much more. This is an un-retouched photograph showing the excellent performance of our custom made display in bright sunlight.
	The RDAC IV EIS system. All engine monitoring probes and connections are wired to this unit.  The RDAC is installed close to the engine, eliminating any need for extension of wiring.  The supplied and fitted 10ft of cable plugs into the rear of the display unit.  A neat, quick and clean installation.
	Stratomaster Ultra shown on the "bench" with backlight on.  Note: this backlight shows a green tint - production models are fitted with CCFL backlighting which emits a white light.

Stratomaster ULTRA Features and Functions: 

• Dimensions: 202x135 mm. Mounting depth 95mm (including connectors and wiring). Panel cutout 196x122 mm. Weight 700 grams plus RDAC IV 275 grams. 
  
•  Altimeter. 0-40.000 ft certified by us, traceable to British national standards. 7.5 ft static resolution, 1 ft dynamic resolution. QNH and QNE settings. User calibration function. The static resolution applies in still air with the unit stationary at sea-level. The dynamic resolution is available with the aircraft moving. This resolution has been made possible by mathematically evaluating the turbulence created around the aircraft. The unit uses a micro machined silicon diaphragm sensor and an absolute vacuum reference of highest stability and accuracy. The altimeter is doubly temperature compensated and uses true ratiometric signal acquisition circuitry. The altimeter can operate in increments of 1 ft or 1 meter. QNH setting is shown in mb(hp) or in/Hg. Both analog (two pointer) and digital readouts. 
  
• Airspeed. Analog and digital ASI plus digital TAS . Range from 16 mph to 200 mph, user calibration possible to cater for pitot tube placement. 
  
• Digital VSI. 9999 ft/min range, deadband 20 ft/min resolution (1 ft/min internally). The VSI is altitude compensated. VSI can be indicated in ft/min or meters/second. 
  
• Analogue VSI. Range 2000 ft/min. Logarithmic display with excellent sensitivity around the 0 ft/min level. Additional "straight and level" indicator useful for training the novice pilot. Note: the VSI has a "vario" output for connection to an optional vario panel with audio output. This allows "listening" to your VSI. 
  
• Glide slope ratio indicator. Range to 1/99. This display is shown when the instrument detects that you are gliding. Instantaneous calculation of your forward speed vs. vertical speed is provided. Uses true airspeed (TAS) for maximum accuracy. 
  
• Climb ratio indicator. Range to 0 to 1/99. Shows ratio of climb to forward movement. Useful to establish best rate of climb vs. best angle of climb performance of your aircraft. 
  
• Take-off length measurement. The unit includes a semi-automatic take-off length measurement mode. This establishes your aircrafts take-off length in meters to clearing the standard 50 ft obstacle. This is a very useful feature for aircraft designers but also for the owner who wants to optimize his aircrafts performance. This feature is also used to optimize climb performance if you have an adjustable propeller. In this case the unit is used to measure the forward air distance required to gain 50 ft of altitude. 
  
• Density altimeter. This secondary altimeter shows the density altitude at your current location taking pressure altitude and ambient temperature into account. This in turn can be used to calculate your aircraft's take-off run for your current local conditions. 
  
• Stop watch. A stop watch is provided that can be used as flight leg timer for competitions etc. Functions provided are start/stop and reset. Range to 99 hours, 59 minutes.
  
• Air distance made good. This is a reset-able "trip counter" based on TAS and time. The instrument can be setup to reset the Air Distance counter automatically on the start of a flight.
  
• Fuel level display. This uses a standard automotive float level sender at low cost. The instrument has a calibration procedure that recognizes the tank shape and fuel capacity. This results in direct, accurate readout of remaining fuel in liters, U.S. or Imperial gallons.
  
• Fuel flow display. This uses a fuel flow sender (can be purchased as an optional extra). Resolution in decimals of a liter / hour. This sender can also be used to calculate fuel level if no fuel level sender has been installed. In this case it is possible to enter a current tank level in liters, US or Imp Gallons and the instrument will calculate remaining fuel.
  
• Probably the two most useful displays, if fuel flow and fuel level is available, is Air distance range and bingo fuel time estimates based on current performance. Air distance range gives calculated range based on current TAS speed, fuel flow and fuel remaining. Bingo time estimate gives remaining engine running time on available fuel based on fuel flow and fuel remaining. 
  
• Ambient temperature. An accurate semiconductor sender is included in the price.
  
• Hobbs meter. The hobbs meter counts to 9999 hours, 59 minutes. The Hobbs meter is presettable to current engine time. 
  
• Maintenance counter. This is pressetable and counts engine time down. Can be used for maintenance tasks such as spark plug replacements, oil change, MPI etc. 
  
• Automatic flight detection. This starts recording of a flight. It is possible to set the instrument to record flights based on manual start/stop only.
  
• Flight time. Duration of current flight from take-off or manual start-of-flight input. 
  
• Time of day. Displays current time in hours and minutes. Can be used to display UTC. 
  
• Flight log. Every flight is stored in a log for later retrieval. The log contains up to 240 flights. Each flight stores date and time of take-off, duration of flight, maximum speed and altitude reached. In the useful Instructor/Lesson mode a log entry stores a Lesson, even if made up of multiple flights. Each lesson can be stored under a student number. 
  
• Automatic or manual pre-takeoff checklist, user programmable.
• Voltmeter - displays current system voltage. Useful to check for charging / over charging of battery etc. 
  
• Barometer - A barometer has been included to show local atmospheric pressure in mb(hp) or in/Hg. This barometer is a precision instrument with a range of 200 mb to 1200 mb. 
  
• Instructor mode - The instrument can be setup to record "lessons" rather than individual flights. Lessons are subject to a number of criteria for accumulation of time. Please view the manual for details and options. 
  
• Power supply protection - the instrument contains a fast Tranzorb to prevent destruction by spikes caused by inductive loads. Further to this two independent watchdogs are used to detect software malfunction (crashes) to facilitate automatic recovery. 
  
• The unit can operate for about 12 hours on a 9V PP3 battery (alkaline) if the display back light is off (Software selectable). The unit can operate down to about 7V. Normally, the unit will be connected to either 12V or 24/28V aircraft supplies. It is possible to use a 9V battery as emergency backup power for the instrument. This requires the installation of a simple two-diode decoupling bridge. Details on the required wiring are included in the manual. 
  
• The instrument can be setup for a wide range of options such as metric, imperial or US readings. In addition most operational parameters are selectable by the user. Speed and distance readings can be shown in mph, knots ,km/h and miles, nm ,km respectively. 
  
• Fuel level can be shown in Liters, U.S. Gallons, Imperial Gallons, Kilograms or pounds (lbs).

• Local area network. The instrument supports the Air-talk communications protocol to send and receive data to/from other instruments. It is also possible to connect a PC to the instrument via a special cable. A key-ring device can be used to download the log for later upload of the log to a PC. The Air-talk link is standard with every unit, download cable and key-ring interfaces are an optional extra. 
  
• Alarms - The instrument can generate alarms based on certain triggers. These are: Fuel level low, Air speed low, Air speed too high, engine temperature and Altitude ceiling. Alarms are indicated via EXTERNAL devices. The unit provides an uncommitted relay contact which closes/opens once a second during an active alarm. This can be used to switch a master caution light (idiot light) and/or buzzer. 
  
• Audio alarm output. This can directly drive a 4 or 8 ohm panel speaker or in a low level mode can inject alarm tones into a suitably fitted intercom system.
  
• Vario output - This feature is intended for motor gliders. Using a suitable Vario panel it is possible to listen to your VSI. This allows you to keep your eyes outside of the cockpit when several gliders are circling inside the same thermal - without loosing track on how you are doing vertically. 
  
• The unit contains a long life Lithium battery which is used to maintain date and time settings of the real-time clock and other time related items. 
  
• High contrast, wide temperature range LCD display with backlight. Backlight can be operated in one of three modes (software selectable): Always on, always off and automatic. In the later case the backlight will turn off if no engine revs or other activity has been noted for about 10 minutes. 
  
• The unit has been designed to be immune to strong RF interference from a VHF radio. In addition, care has been taken to making the unit produce as little RF interference of its own as is possible. 
  
• Copper clad ABS housing for maximum EMI performance and light weight. 
  
• The unit provides both static and pressure (pitot tube) ports. 

RDAC IV EIS features: 

• Self contained unit with own processor. Direct connection to Stratomaster Extreme, no additional power supply wiring required. RDAC EIS simply plugs into RDAC socket of Stratomaster Extreme and Ultra. RDAC comes readily fitted with 10 ft of cable and connector.
  
• Four channel precision thermocouple amplifier for EGT and CHT probes. Can use K type and J type senders, grounded or isolated configurations. Fully cold junction compensated and includes bow voltage correction. You will not find these features on any other digital instrument.  Probes: EGT $36.00 /  CHT $26.00 each.
  
• Two channel NTC input for Rotax 912/914 CHT senders.
  
•  Water temperature sender input (optional extra at low cost supplied by us - only $10.00) 
  
• Oil temperature sender input (accepts Rotax 912 standard sender) $22.00 
  
• Oil pressure sender input (Configurable from 50 to 1000 ohm senders - Rotax uses a 200 ohm sender) 
  
• Fuel level sender input - accepts standard fuel level senders. Comprehensive calibration features allow direct readout of fuel level in liters or gallons, compensating for odd tank shapes. 
  
• Fuel flow sender input - This provides the Extreme and Ultra with required information for range and fuel bingo calculations. Also very useful for pre-flight checks. Fuel flow sender is optional at $145.00 and can be fitted at a later stage. 
  
• RPM input - high impedance, can be setup for a wide variety of engines - not just Rotax. 
  

Typical display, here it shows a layout used for Rotax 582 engines. Many different layouts are selectable, catering from 2 to 8 EGT/CHT channels depending on the Ultra model ordered, water and oil temperature, oil pressure and fuel level. Custom built setups can be negotiated.  If you have a specific requirement tell us what you need to measure and we will contact you to discuss what a typical image of the required relevant layout would look like.

You can download the current owners and installation manual here:
Stratomaster Documents website at GeoCities

We recommend that you use at least the Fuel level sender if you have a suitable single fuel tank. You can fit the fuel flow sender at a later stage if you like. Both items are an invaluable aid for long cross-country flights. 

Please note: If you fit only the fuel flow sender, fuel level can be calculated from fuel flow. This requires that you enter the current fuel level before you commence the flight. This method must be backed up by a second visual fuel level gauge such as a sight level glass. Malfunction of the flow sender caused by fuel contamination, debris, etc. can lead to the sender under reading and therefore resulting in a fuel level reading that is higher than the actual fuel level. We recommend that you use the optional fuel level sender as a source for the fuel level in cases where no direct visual check of the fuel tank level is possible. Please also note that the accuracy of the fuel flow sensor is subject to the quality of your installation, type of engine, fuel pump, viscosity of your fuel and finally the calibration factor entered into the Stratomaster Flight instrument (this is a user selectable calibration). 

MGL Avionics and Aerial Adventure cannot be held responsible for incidents or damage by whatsoever nature caused by incorrect fuel level indication. Installation and operation of the instrument and its related parts is outside our sphere of influence and control. We do not manufacture either the fuel level sender nor the fuel flow sender and are not appointed agents of either.

Operation of the Stratomaster Extreme and Ultra instrument is the responsibility of the pilot in command of the aircraft. The pilot in command has to make him/herself familiar with the operation and limitations of the Stratomaster Extreme and Ultra instrument before commencing ground or flight operations. 

The Stratomaster Extreme and Ultra instrument has not been submitted to CAA or FAA or any of its agencies for any form of certification. Operation and installation of this instrument is subject to the relevant rules and regulations of your particular country and flight authority. 

If any of the above is not acceptable to the pilot in command he/she must refrain from operating the aircraft or remove the Stratomaster Extreme or Ultra instrument from the aircraft before commencing aircraft operations.

Please add cost of international shipping and insurance as indicated below.  Note that you may be charged taxes and duties by your customs. Please notify us if special descriptions or markings for customs purposes are required.  Shipping charge costs depending on your preferred method.  For USA overseas shipping we recommend insured and registered air-freight.  Of course we can offer the cheaper Air Mail posting but it is not possible to have your instrument order insured, so if the customer accepts that he/she takes the risk if it is lost then we can ship Air Mail.  This may take 10-15 working days and the cost is approximately $35.

For those in a hurry or wishing to have their instrument insured, we can offer a courier service using UPS.  For example: USA is approximately $90 insured.  Our Courier services deliver to your door in approximately 3-5 working days (Subject to no customs delay).  Due to credit card fraud incidences we are currently unable to provide an online order link but we are working on it. Orders can be placed with a cheque made out to MGL Avionics.