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The Stratomaster Extreme A superior glass panel primary flight and engine information system
The Extreme is designed specifically for outdoor use in aircraft with open cockpits. Able to give excellent viewing quality in poor light conditions under low and high temperatures, the Stratomaster Extreme is the most complete and compact light aircraft instrumentation package available today. A Typical display (shown above) shows a layout used for Rotax 582 engines. Many different layouts are selectable, catering from 2 to 6 EGT/CHT channels, water or oil temperature, oil pressure and fuel level. Providing a multi-channel engine information system as standard, the Extreme gives you the ability to keep a close watch on your engine and to optimize your engine performance. The system 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. Rotax engines are of course usable from the 447 to the 914 but the system is not limited to just Rotax engines - connect just about anything you like, from VW to Jabiru to 2SI.
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 ratio-metric 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.
Digital VSI. +/-9999 ft/min range, dead band +/- 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. 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.
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 takeoff run for your current local conditions. Stop watch. A stop watch is provided that can be used as flight leg timer or 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 (low cost) standard automotive float level sender. The instrument has a calibration procedure that recognizes the tank shape and fuel capacity. This results in direct, accurate readout of remaining fuel in litres, US or Imperial gallons.
Air distance range and bingo fuel time. The two probably 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 preset able to current engine time. Maintenance counter. This preset able counter counts engine time down. Can be used for maintenance tasks such as spark plug replacements, 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 takeoff 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 224 flights. Each flight stores date and time of takeoff, duration of flight, maximum speed and altitude reached. In 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. Voltmeter. Displays current system voltage. Useful to check for charging / over charging of batteries 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. Power
supply protection. The instrument contains a fast
Tranzorb to prevent 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 7 V. 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 de-coupling bridge. 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. The Extreme's software can be upgraded; and its Flight Log data can be loaded onto a PC. The Extreme supports the Air-talk communications protocol to send and receive data to and from other instruments and devices. This allows the Extreme to be connected to a PC via a special cable to install later versions of software to upgrade the units operation (upgrades become available from time to time, at no cost). It also allows a small key ring size device - a ' Down Load Key' - to be connected to the PC to transfer the contents of the Extreme's flight log to special software on your computer. The Down Load Key is first connected to one of the Air-talk connections on the back of the Extreme and the Flight Log's contents downloaded to the Key. The Key can then be taken home and the data transferred onto your personal computer. Whilst the Air-talk link is standard with every unit:-
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 lamp (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. 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-VD Engine Monitoring module:
RDAC-VD The RDAC model VD is an integrated, microprocessor controlled engine The VD provides the following functions: 4 x EGT and/or CHT thermocouple inputs The RDAC VD is intended for installation on all engines where up to four
Owners and Installation manuals If you would like to have a detailed look at the features, operation and how easy it is to install the Extreme - the Owners and Installation manuals (one document) can be downloaded at this link:
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 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 calibration). Neither MGL Avionics nor Asia Pacific Light Flying can be held responsible for incidents or damage of any kind, 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. Please Also Note: Operation of the Stratomaster Extreme instrument is the responsibility of the pilot in command of the aircraft. The pilot in command has to make himself/herself familiar with the operation and limitations of the Stratomaster Extreme instrument before commencing ground or flight operations. These instruments are designed for use in ultralight, microlight, experimental and homebuilt aircraft as well as any aircraft that permit use of such (non certified) instrumentation under general or special operating permits. The Stratomaster Extreme 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 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 instrument from the aircraft before commencing aircraft operations. The Stratomaster Extreme system package includes the following items:
Optional components (not included in the basic price):
Senders for RDAC unit (not included):
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Airspeed.
ASI or TAS (true airspeed) selectable. Range from 14 knots to
175 knots, user calibration possible to cater for pitot tube
placement.
Take-off
length measurement. The unit includes a semi-automatic
takeoff length measurement mode. This establishes your aircraft's
takeoff 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 aircraft's performance.
This feature is also used to optimize climb performance if you
have an adjustable propellor. In this case the unit is used
to measure the forward air distance required to gain 50 ft of
altitude.
Fuel
flow display. This uses a fuel flow sender (not included
in basic cost). Resolution in decimals of a litre / 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 litres, US or Imp Gallons and the instrument
will calculate remaining fuel.
