Software Version 6.0 Differences
User Enhanements:

  1. Enable pitch steering. This capability works with the Chelton AP-3C Series II and the Tru-Trak line of experimental autopilots. It follows Skyway vertical guidance or the new VSI bug.
  2. Discontinuities are assigned a distance value equal to the straight-line distance between the respective waypoints to make the distance to destination display more accurate. In 5.0B, no distance is assigned to a discontinuity.
  3. Added piston twin engine pages.
  4. Enhanced engine display pointer so that it is colored to correspond to the arc region and the pointer and background for the digital value flashes when in an alarm condition.
  5. CDI linked to NAV source (GPS, NAV1 or NAV2). Integrated with the CDI are annunciators that display what the EFIS autopilot guidance will be to the autopilot in either HDG or NAV modes. HDG options are LVL (wing leveler), GPSS (GPS steering) or HDG (heading error output). NAV options are GPS, NAV1 or NAV2.
  6. Added WSI datalink functions. WSI products supported are:

  7. Smooth radar altitude readings. Decrease resolution to 10ft above 100ft AGL.
  8. PFD Basic mode similar to Collins EFIS-86. This mode includes the ability for the pilot to select either a single or dual-cue flight director.

  9. Make bank scale, mini-map, mini-traffic and skyway PFD declutter settings independent between screens.
  10. Add PFD auto-reversion capability (MFD automatically switches to PFD screen in the event of PFD failure).
  11. Long-distance, shaded map terrain (400+NM).
  12. HSI glideslope indicator no longer linked to HSI. Glideslope indicator centered at all times, back shaded, and indicates source (GS1, GS2 or VNAV).
  13. Two digit PFD headings.
  14. Improved FPM smoothing algorithm (works in MU-2 with Shadin ADC!!).
  15. Traffic alerts flash.
  16. Nearest 3 airport runways are always shown.
  17. Unslash zeroes. Note that zeroes used in identifiers are still slashed to differentiate from the letter “O.”
  18. Enlarge bank scale diameter.
  19. Increase speed trend from 5 seconds to 10 seconds.
  20. Inhibit menus when in unusual attitude mode.
  21. Add decision height and VSI bugs.
  22. Eliminate manual climb speed bug. Note that “CL” mark still present to indicate system calculated climb profile speed. For pitch steering, the Target Airspeed Bug can be used to override the system calculated climb profile speed.
  23. Eliminate Target Airspeed Bug warnings.
  24. HTAWS FLTA automatic inhibit below 50KIAS in both normal and low-altitude modes (previously, value was 40KIAS only in low-altitude mode).
  25. Disable roll rate limiter in HDG and wing leveler mode. Only use in roll steering mode.
  26. Add speed desensitization to lateral autopilot gains.
  27. Add sideslip factor to lateral autopilot HDG and roll steering outputs. This enables more precise tracking of the heading bug and skyway.
  28. Eliminate disabling of target altitude level-off annunciation based upon being within an approach procedure or below 1500’ AGL. Original annunciation inhibit retained when using VNAV instead of target altitude.
  29. Eliminate overspeed warning deadband and 6KIAS buffer so that overspeed warning generated within certification tolerances.
  30. Eliminate minimum altitude debounce period.
  31. Add one second debounce period to level-off annunciation and change rule from 30% of VSI to 50% of VSI to give an earlier warning.
  32. Border drawing enhancements. With terrain displayed, borders drawn in black and only inland borders drawn. With terrain not displayed, both inland and coastal borders drawn in white.
  33. Current VOR radial displayed along with heading in NRST.
  34. Optional arming of HITS boxes.
  35. New Nav Log page
Installation/Interface Enhancements:
  1. Native IDU-1 ARINC429 receive ports now has limited ability to interface to sources that transmit more than one label IDU-1 ARINC429 receive port speeds are set in same manner as IDU-3.
  2. IDU-1 interfaces with DAC International general purpose ARINC429 to RS-232 converter to enhance ARINC429 capabilities. The converter goes on COM5 instead of a Ryan TCAD. Set traffic interface to ARINC735A to enable the converter. The converter adds 2 receive ports (speeds set in same manner as IDU-3) and 1 high speed transmit port.
  3. RS-232 interface to Garmin AT SL-30 NAVCOM radio on COM9. By making use of the monitor standby feature of the SL-30, the EFIS can display two pointers from one radio.
  4. Added following ARINC429 labels:
  5. Added following ARINC429 labels to IDU-1 output:
  6. Don't require an active flight plan prior to activating output of GPS course error. This makes AIU ground testing easier.
  7. Add heading smoothing to Crossbow AHRS input.
  8. Add acquisition of x, y and z-axis body rates from Crossbow AHRS and ARINC429 to support enhanced autopilot control algorithms.
  9. Add labels 100 and 101 to optional EFIS-40/50 emulation ARINC429 output. This “should” fix the interface problems with the KFC400 autopilot.
  10. Eliminate inhibition of label 121 (roll steering) when the NAV source is not GPS. This requirement was originally imposed by the S-TEC 55X autopilot which reverts to label 121, if present, in NAV mode (therefore ignoring inputs like, say, localizer). We may have to further refine this in the next release so that it is an installation setting.
  11. Support for the remote bugs panel.
  12. Add “No TAWS” option for those customers that do not want TAWS.
  13. Eliminate use of d_gain parameter.
  14. New on-IDU limits editor that eliminates use of limits.txt file and PC-based limits editing program.
System requirements:
  1. 128Meg of IDU ram
  2. 650Mhz cpu (IDU1-G2 or IDU3) for WSI datalink
  3. Current AHRS. The

    Xbow 500     has -224 on the faceplate. This adds support for an optional remote fluxgate. If you have -222 it already has support for the external aiding packet (IDU1 pin 44 to Xbow500 pin 2). Otherwise, if you have -202, please consider a free upgrade by calling Xbow at 1-800-XBOWTEC for an RMA and ship your AHRS to:

    Crossbow Technology, Inc.
    RMA xxxx
    4145 N. First Street
    San Jose, CA 95134

    -222 adds GPS and Airspeed aiding to address:

    1. Accleration error. (Horizon tilt on takeoff and landing)
    2. Heading wiggle.
    3. Replacment of the part that reports 1 second "AHRS failure" dropouts for the first 5mins in cold weather.