Measuring flight recorder Black Box BB_03 is an outstanding and unique system which is priceless and irreplaceable for optimal setting of your power system and getting overall optimum power for your model (including batteries, controller, motor and propeller).

BB_03 works closely with the TMM xxxx-3 Z-series controllers from which it obtains a whole range of measured data. Part of the measured data is acquired using its own measuring unit. Thanks to this cooperation BB_03 is tiny, light (< 6 grams). You can fitmit anywhere, since it's the size of a 4mm thick postage stamp. They are very good value.

It measures and saves all important data of your drive (batteries - controller - motor - propeller) during flight, thus real values in operation, not static values measured on a test bench. This allows the user not only to optimize the power unit but also to determine mutual dependencies such as dependence of current on propeller, efficiency of drive on propeller, efficiency of timing, real power consumption of the drive, power consumption depending on type of cells (their hardness), etc.

It is a powerful device for determining the real load of BEC during operation of the model ( eliminates erroneous "servo power requirement guesstimates" with 300% error leading to burnout of controller BEC or your model).

After the flight the saved data is transferred to PC using USBCOM module, wheretit is evaluated. Data appears in easy to read graphs, as well as in excel tables which may be further processed.

The BB_03 is connected with the controller using multicore cable CC_01 with micro connectors. The cable provides the BB-03 feeding, as well as communication between BB-03 and the controller.

The measuring and data saving process start when the motor starts to rotate after switch on or when marking signal > 1,65 ms. If you do not wish to use the marking feature, connect this measuring wire with ground (minus pole of the feeding cells). It is also possible to use this wire for tracking and recording of any receiver channel.

The current of the feeding batteries is taken on the resistor of the ground wire of the controller. This measuring method, even though less accurate than the use of accurate sensing resistor, is not only cheaper, but more significantly it does not bring any additional (unwanted) resistor in the circuit. Another great advantage is that the value of the measured current is not limited (e.g. by the sensing resistor, its allowed load, ADC range, etc.) thus it is possible to measure current of 250A or even more.

Examples of graphs:

When the whole recording is read-out (here 52.5seconds) - all data are displayed on screen. The scale is set automatically according to the biggest displayed value.

How to work with graphs:

It is possible to choose which curves (data) will be shown by clicking on the box next to its name [1].

Also the color of any curve may be changed - move the cursor to the colored name of the curve [2], then right click and color toolbar will pop up. Now you may change the color.

The "CONTROLLER" window may be open in the full screen as is usual with in Windows.

To zoom in, left click on the mouse and choose the area to zoom in by moving the mouse from the areas left upper corner to its right bottom corner. To move with the zoomed area hold the right mouse button.

To get to the default graph scale, right click and choose "Default graph scale". The scale depends on the currently shown curves.

The button "Export data (*.xls)" is used to export the data under any name together with note which may include important data of this recording (such as model, motor, throttle, ...) for easier orientation in measurement comparison.

Data may be shown any time later using "Import data (*.xls)" and choosing requested flight recording from the PC memory.