ILS OFFSET Training System Certified for Textron Citation560XL Using Blue Avionics BA-540 AAU
The Blue Avionics BA-540 Adaptable Avionics Unit (AAU) is FAA certified to provide ILS Offset Training in a Textron Aviation Citation 560XL. The BA-540 AAU is configured to allow an instructor to induce one dot of deviation in either Localizer or Glide Slope from the current ILS output for approach training. The Instructor uses a UP, DN, RT, LT momentary annunciation switch to select the offset. Subsequently the BA-540 AAU confirms the selection by illuminating the selected switch and induces the one dot of deviation from the current ILS input to the BA-540 AAU. The system reverts to normal ILS mode if GO Around or another selection is made.
The BA-540 AAU also provides Checklist enable output, which is decoded from the digital display system bus to help integrate the system with the display system.
“The adaptable BA-540 AAU is configurable to perform hundreds of functions on aircraft. On the Citation 560XLs, the BA-540 AAU is handling 85 functions and logic equations in the ILS offset system and 33 different functions and logic equations in the MMR to EHSI interface. All of these functions are configured and stored in the B540-0FF5 and B540-F15A configurations that are unique to this installation,” says Ross Cairns, Blue Avionics Founder and VP of Engineering.
The B540-0FF5 ILS Offset Training system configuration functions range from detection of momentary push button switch and debounce, latching the mode until another mode or GO Around is selected, to adding +/- Dot of deviation into the ILS output to the displays without loss of data.
The B540-F15A configuration functions range from changing labels from the input to another set of labels output at a different rate, health monitoring and SDI and SSM Management, to specific label filtering and correcting bit differences in digital data interpretation between the two systems including setting frequencies for ILS and DME.
The system integration and certification was performed by Duncan Aviation's headquarters in Lincoln, Nebraska, and the aircraft is delivered to an overseas customer.
“This is just a small sample of functional capabilities of the BA-540 AAU. Give us your worst. Let us see if we can perform the functions you need with just configurations using the BA-440 Router/Filter, BA-540 AAU, and BA-110 ACU Systems,” says Cairns.
The Blue Avionics BA-440 Router/Filter, BA-540 AAU, and BA-110 ACU are all highly configurable adaptable avionics systems that are certified for performing a number of functions on various aircraft from a Piaggio 180 to a Boeing 747SP.
