F.A.Q. about features



(C-Pilot EVO and Easy Pilot)


Is the Compass color display readable?

Yes it is. I’s much more visible, bright and readable than any other device. It is based on a special technology and treatment, applied and handcrafted directly by Compass. Our diaplays does not fear any competition.


Do the instruments have Maps?

Yes, our instruments simultaneously displays two different maps (overlapped):

  • a terrain map;

  • a topographic map.

Easy Pilot will display only the topographic maps. The terrain map can be stored in the memory, but at the moment it is not visible in the screen: it is very useful for the Glide Over Terrain functions and to make precise calculations considering the terrain.


How does the topographic map work?

You see roads, cities, rivers, lakes, and mountains. They are based on the Open Street Map database. You can display different information such as cities and mountains. We have different levels of details depending on the zoom.

You can download the maps (optimized for our instruments) in our website. Being vectorial, you will always see perfectly all the map data and names on your axis direction.

As the pilot must see many data and graphics in the display (relating to the flight navigation, the airspaces, the G.O.T. …) we decided to limit some details (as secondary streets or rivers) in order not to have a confused display (suggestions for the future and improvements by you are welcome).


How does the terrain maps work?

These maps show you the terrain in many different ways: it depends on your choice. They are very useful in flight to visualize terrain shape and altitude, and your position. They are fundamental to calculate the Glide Over Terrain functions too. You can download the (free) maps in the CGIAR website as shown in our user’s manual.


Are the two maps displayed together?

Yes, they are overlapped and you do not notice they are two different maps (EVO and XC).


Can I choose which one to be displayed?

Yes, you have only to flag a checkbox called “show terrain” or “show roads, water …”


Is it the variometer sensible?

Yes, as it is processed at 24 bits (more than most variometers in commerce) and feature a high-sensitivity, low-noise sensor and circuitry. You can tune the responsivity of the variometer and the audio tone with an unprecedented level of customizability.


How about the variometer sound?

Compass has a speaker and not a buzzer (as most instruments does). As consequence, the sound is much more pleasant and a bigger frequency range can be used (especially lower frequencies). Therefore, you have much more flexibility in programming your own special sound. You can program your sound files, save them and recall them (even during the flight, for example you can have a sound programmed for weak conditions, that is more sensible, and a sound for strong conditions, programmed to be less “anxious”). Programming the sound is very easy and intuitive: you can do it at home by using our CSS Application or directly program by the instrument’s CSS function. All you have to do is modify the sound curve by your fingers or mouse. You have the possibility to change frequency, beeps per second, length of beeps at any climb/sink rate.


Do you have the FAI Triangle Assistant

Yes, we do. It calculates FAI and flat triangles. You can use this function in different ways: fully automatic, semi-automatic or manual.


Can I see data relating XC-flights and/or triangle flights?

You can choose the data that you want to be displayed. For example you can see the distance already covered (optimized), the remaining distance to close the triangle, the distance and altitude required to the triangle sectors (or arrival height/altitude at the triangle sectors) and the triangle end (validation), the average speed, the minimum and max triangle possible...


How does the Glide Over Terrain work? What is it?

The instrument calculates your average glide-ratio, the strength and direction of wind, your polar, your sink rate and, of course, your position. The instrument , at the same time, “reads” the terrain around you. As consequence, by combining all these information, it calculates in real time where your glide will end, i.e. the exact point you will touch the terrain in front of you.

You can display two import data fields: “distance to glide end” and “altitude at end of glide”. At the same time the instrument draws a cross in the point on the map where the glide will end. As consequence you know where the glide will end, the distance and the altitude of that point.

If you want, it is possible to diaplay a blue line connecting all points of end glide calculated by the instrument: the result is a sort of “radar” detecting the area inside which your glide will end. Not only you will see if you will arrive at a landing place (useful to decide if you have a margin, for example, to reach a landing area). The most important thing is that you are able to see where your glide will end in a mountain’s ridge or slope: as consequence, you will know in advance and in real time the altitude you need, for example, to cross a valley o to complete a transition. Crossing is not more a mystery! This is very useful in any XC flight because it avoids the pilot’s difficult and distracting calculations and lets the pilot free to concentrate in the strategy of his flight … without having doubts. (EVO and Easy Pilot)


Is it the Glide Over Terrain useful when navigating by using the waypoints?

Of course yes: both in Competition and Cross. By the G.O.T. software, the instrument calculates the altitude you need to reach a waypoint considering the terrain (or the altitude you will arrive over the waypoint). In a competition it calculates if you succeed to reach the goal, considering the terrain, even if more than a waypoint/cylinder is to be completed: if some natural obstacles (hills, ridges …) cannot be overflown, the instrument will show you this data and shows you graphically the point you will touch the ground. In a XC flight, using the Triangle Assistant Software, the instrument will show you both by the graphics and the data-fields: arrival altitude over a sector or the goal sector, altitude needed to reach a sector or the goal sector and some other data. (EVO and Easy Pilot)


Do you have Airspaces?

Not only the Compass instrument displays the airspaces, but you are able to edit and manage in many different ways the airspaces (example excluding or adding some, selecting them, or excluding the ones that are over a certain altitude … you can even crate an airspace and save it). Airspaces are in “OpenAir” format. As consequence you can find many and download for free from the web. The instrument will automatically advise you when you are approaching an airspace (both horizontally and vertically). (EVO and Easy Pilot)


Is it possible to customize the display?

Your Compass instrument is to be considered as a “balank page”: you can add, remove, move, position, enlarge or restrict any data field or graphics (of course the map too) in any place of your display. You can save different displays, by assigning a name, store them in the memory and recall them any time you need. By this way you can have some personal displays to be used in competitions, some other in cross or in different flight situations (example by approaching an airspace, or by navigating with the triangle assistant). (EVO and Easy Pilot)


Does the display switches automatically in different flight conditions?

Yes, the instrument detects automatically your flight situation. If you are in a thermal, the instrument will switch automatically in the thermal display you have chosen for this condition. When you go outside the thermal, the display turns in the glide mode. The same happens in the start of a competition, in the final glide, or if you approach an airspace. (EVo and Easy Pilot)


Do you have the Thermal Assistant?

The pilot can manage a particular display for the thermal flight. As consequence, all the instrument itself becomes “the” thermal assistant. If the pilot decides (we recommend), while in thermal condition the instrument zooms the track. The track appears very wide in the screen: it is colored in light blue when the climb rate is lower than the average of last thermals. The more the climb rate increases, the more the track will become darker blue and then, for “good values” it becomes colored from light red to dark red. By this way, the pilot can - by a fast look - see where the core is and can verify if the thermal core is centered or decide to move to the dark red zone to get better values. (EVO)

In Easy Pilot the function is exactly the same but the track is displayed by different grey color tones. (Easy Pilot)


What is the “air referenced track”?

It is an option the pilot can choose when using the thermal display (Thermal Assistant). The instrument perceives the leeway when you're tuning in thermal and shows the pilot the track referred to the air and not to the ground. As consequence is much more easy to center the core and stay inside the core itself. (EVO and easy Pilot)


Is it possible to choose what to display in the screen?

Of course yes. You have many checkboxes you can flag. Example: “show map”, “show airpsaces”, “show all waypoints”, “show waypoints names”, “show heading line”, “show arrival line at terrain”, “show roads/water…”, “show track” … and more. (EVO and Easy Pilot)


Is it possible to change the colormaps?

Yes, it’s possible to change them and/or customize them (EVO)


Is it possible to set the time zone?

Yes you can do it even in half hrs (useful in certin zones). (EVO and Easy Pilot)


Is it possible to set the different units?

Yes, you can set the instrument. Distance: Km, Nm or Sm. Altitude: m., ft. Speed: Km/h, Kts, mph. Vertical speed: m/s, ftm, fts. Temperature: °C, °F. (EVO and Easy Pilot)


Is it possible to set the averages?

Yes for: audio variometer, analog variometer, digital variometer, glide ratio, altitude at next, altitude at goal, TAS. (EVo and Easy Pilot)


Is it possible to set the polar?

Of course yes, only by entering the data by using the extended keyboard. (EVO and Easy Pilot)


Is it difficult to customize the instrument and set parameters?

No, because, by the touch screen, as soon as you want to modify a parameter or save a file, an extended keyboard will appear to enter the text or data: it works as any tablet. (EVo and Easy Pilot)


Can I use the touch screen if I wear gloves?

Yes, no problem with any different fabric. Our technology is studied, of course, knowing that any pilot normally uses the gloves. (EVO and easy Pilot)


Is it difficult to enter a task?

No, the instrument is studied to enter a task exactly reproducing the task-board of a competition. By the extended keyboard any data can be entered in a very fast way. (EVo and Easy Pilot)


How can I share the data?

At the moment you can share the data importing the data and files stored in another Compass instrument by the SD Card (and of course in a computer if you have it near). In the future the Compass instruments will share data wireless, by the BT unit. (EVO and Easy Pilot)


Which “Altitude” do you display?

Normally you can display the “Altitude” which is calculated, and recalculated during the flight, both by the barometric sensor and the GPS (by an algorithm): this gives very precise results. You can display the pure “Barometric Altitude”, or the “GPS Altitude” and, finally, you can display the Altitude expressed as aeronautical “FL” (Flight Level). (EVO and Easy Pilot)


Is it possible to set the barometric altitude?

Yes, but if the altitude is manually entered the continuous calibration from GPS is not active. (EVO and Easy Pilot)


What does it mean “Optimal Speed Indicator”?

It’s a graphic bar that you can display in the screen. It indicates you the optimal speed needed to reach a waypoint or the goal, both in Competition and XC flights. The optimal speed is calculated in different ways depending on the flight situation. Normally it is based in the McCready factor (adapted by us). For example, in a competition the optimal speed is the one with the best glide ratio before the start, the one calculated by the McCready factor during the task and the fastest speed possible (considering the terrain) as soon as the instrument detects that the pilot is able to reach the goal (As soon as the instrument detects that the pilot does not reach the goal/landing area at max speed the Optimal Speed Indicetor suggests to reduce speed in order to have a better glide ratio). Using a correct polar is important in this case. (EVO and Easy Pilot)


Is it possible to zoom the map?

Normally the instrument zooms automatically: the more you approach a waypoint (or a sector even in XC flights) the more the instrument zooms (obviously it works at the contrary if the pilot moves away). It is possible to zoom in or out manually and go back to the auto-zoom only by touching the instrument’s display. (EVO and Easy Pilot)


How do you start the navigation to a waypoint?

The easier way is simply to touch a waypoint in the display: a window will appear showing the waypoint name and data and asking the pilot “do you want to go-to”? By pressing the “yes” option the instrument will start the navigation to the waypoint and will zoom automatically the map. Of course it is possible to use the classic method: search a waypoint inside the waypoint menu. (EVO and Easy Pilot)


Do I need a particular program or application to connect the instrument to the PC and exchange data?

No, any computer (Windows, iOS, Linux) will recognize directly the instrument as a common external hard drive: you just play with the files and folders as you do with any computer. You can connect or exchange data by USB cable, by Bluetooth, by SD card or by a Serial Cable. (EVo and easy Pilot)


How can I see the wind direction and wind speed?

The wind direction can be displayed by the “standard conventional” wind arrow. You can see the wind speed by looking the arrow tail. Of curse you can add the wind speed data field too. You may use 2 different wind arrows: one oriented considering your direction, one considering the north. You can see the wind speed and direction even by looking the round compass: the wind direction and speed is graphically represented by a symbol. (EVO and Easy Pilot)


Is it possible for the instrument to calculate the cloud base altitude?

Only if you use the C-Probe together with C-Pilot or Easy Pilot.


Is it possible to calculate the wind direction and speed in straight glide and real time?

Only if you use the C-Probe together with C-pilot and easy Pilot.


Can I use personal waypoint files?

Of course yes: you can use as many wp files as you want. You can use 2 or more at the same time. You can store as many files as you want in the instruments memory or in the SD Card. You just need to make your own wp files and save in the common formats. (EVO and Easy Pilot)


Can I set an altitude limit?

Yes, and you can choose to be advised in advance (by setting the desired distance). (EVO and Easy Pilot)


Can I set the altitude the instrument will advise me to go for the Goal?

Yes. The instrument detects automatically the moment you are able to reach the goal (even if more than 1 cylinder is to be reached), but you can set the negative or positive altitude you want to be advised and you want the instrument to display the “goal custom display”. (EVO and Easy Pilot).


What is the GPRS unit useful for?

At the moment it is useful for the live tracking services. In the future (not so far) some news are going to be added:

  • you will be able to see in your display the position of other pilots (if they use the GPRS too);

  • you will be able to see in the instrument’s map the data (and the place) of some meteo-stations or wind stations placed on the ground.

  • You will be able to receive messages from the ground.

Compass is in contact with partners to make all this possible. (EVO and Easy Pilot)


How long does the battery lasts?

The C-Pilot EVO lasts about 13 hrs in the worst condition possible (under 0°C in full sunlight). Easy Pilot, of course much more longer: about 30 hrs.


Is it the display fragile?

Of course you must take care, but the C-pilot EVO’s display is much, much more resistant than the PRO model. We found the solution of this problem, that affected the previous PRO model. Compass repaired only 2 displays in year 2015 (one crashed in a ground of stones, and the other after a big crash of the pilot after throwing the reserve … in this accident, the plastic case was seriously damaged too).


What does it mean the horizontal double line that appears in the analog variometer?

It represents the average climb rate (considering the McCready factor) of previous thermals. By this way you can decide to turn or leave the thermal. Under the double line values the pilot’s track (zoomed when in thermal display) appears in blue color. For values better than the average climb, the track is red. The darker the red is the higher is the climb rate. In Easy Pilot we use different grey tones.