Installation manual

Avidyne | DFC90, 100 FAQs (Last updated: 26 June 2012)

• Added an alert to notify the pilot if the POH bank angle limit has been exceeded.

This comes in the form of an aural alert (“Caution, Excessive Bank”) and a text

alert (“BANK LIMIT”);

• Provides suppression of Underspeed alerting while on short final, in the flare, and

during landing rollout. This requires the optional flap wiring modification – we

use a combination of flap position, manifold pressure value (if available) and

ground speed to determine when to suppress this alert) [Note: This suppression

of Underspeed Alerting is not available in SIU-equipped Cirrus aircraft in PFD

Release 8.0.5 – it will be added as part of PFD Release 8.0.6 in the summer of

2012];

• Removed the engagement limits of the DFC90 such that it can be engaged at any

aircraft state. The maximum demonstrated engagement values are listed in the

pilot guide;

• Capped the upper end of the IAS bug to match the autopilot limitation speed (e.g.

185 KIAS in the Cirrus aircraft);

• Changed the system behavior when on an ILS or WAAS glideslope and the glide

slope data is subsequently lost. Now the system will revert to ALT Hold mode

after approximately 5 seconds of no glide slope signal;

• Added support for Control Wheel Steering (CWS). This is not available in all

aircraft.

PFD Release 8.0.5 or later is required to take advantage of the features and content of

DFC90 Release 2. (updated 26 June 2012)

(DFC90) Does my current Aspen PFD software load work with the DFC90? You need

the Aspen Pilot Pro PFD loaded with software version 2.6 or later and the accompanying

DFC90 enablement key for your Aspen PFD to work with the DFC90 autopilot. That

Aspen hardware-software combination is to be obtained through normal Aspen sales

channels . (added 17 Apr 2012)

(DFC100) Is there anything else in IFD Release 9.2.1? Yes, the list includes support

for the DFC100, support for ELTs that require GPS position inputs (NMEA-0183), and a

list of software issues fixed including missing range to altitude arc, Direct-To guidance,

HDI sensitivity in RNAV approaches, Nearest page delay, morse code processing for

non-standard VORs and ILSs, some map redraw improvements, and more accurate TOD

placement on the map.

(DFC100) Are there any autopilot features in IFD Release 9.2.2, 9.2.3, or 9.2.4? Yes,

9.2.3 improved the suppression of Underspeed alerting while on short final, in the flare,

and during landing rollout but that also required DFC100 Release 2. IFD Release 9.2.4

improves the suppression of Underspeed alerting in the landing environment even more

and also requires to be paired up with DFC100 Release 2 to work . (added 10 Oct 2011)

(DFC100) What is in DFC100 Release 2? DFC100 Release 2 was certified in December

2011 and includes the following additions or changes (updated 27 Feb 2012):