Avidyne Homepage
Forum Home Forum Home > Avidyne General > IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM
  New Posts New Posts RSS Feed - Clarification on Callouts for non-TAWS IFDs
  FAQ FAQ  Forum Search   Register Register  Login Login

Clarification on Callouts for non-TAWS IFDs

 Post Reply Post Reply
Author
Message
jimmyz80 View Drop Down
Senior Member
Senior Member
Avatar

Joined: 24 Jul 2016
Location: Folsom, CA
Status: Offline
Points: 102
Post Options Post Options   Thanks (0) Thanks(0)   Quote jimmyz80 Quote  Post ReplyReply Direct Link To This Post Topic: Clarification on Callouts for non-TAWS IFDs
    Posted: 31 Oct 2024 at 10:44pm
For some reason I remember hearing or reading a long time ago that IFDs would behave identically and provide the same callouts whether the TAWS feature was purchased or not. I also asked an Avidyne employee about this recently at the Cirrus Migration expo and he said he was pretty sure I'd get the TAWS callouts even without the TAWS license.

I'm confused though, since the pilot guide seems to imply that I shouldn't get PDA, EDR, or NCR callouts from my non-TAWS IFD540. The root of all of this, is that my Cirrus was originally equipped with the Honeywell EGPWS system, which does provide these callouts. For the last year or so I've kept that system disabled, and enabled FLTA on my IFD so all of my callouts come from one piece of equipment.

Am I missing some capabilities by doing this?


2006 Cirrus SR22 - IFD540 IFD440 DFC90 AXP322 MLB100
Back to Top
jimmyz80 View Drop Down
Senior Member
Senior Member
Avatar

Joined: 24 Jul 2016
Location: Folsom, CA
Status: Offline
Points: 102
Post Options Post Options   Thanks (0) Thanks(0)   Quote jimmyz80 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2024 at 1:00am
Just bumping this one for some clarification. :)
2006 Cirrus SR22 - IFD540 IFD440 DFC90 AXP322 MLB100
Back to Top
dmtidler View Drop Down
Senior Member
Senior Member
Avatar

Joined: 12 Feb 2016
Location: USA
Status: Offline
Points: 618
Post Options Post Options   Thanks (0) Thanks(0)   Quote dmtidler Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2024 at 10:25am
Originally posted by jimmyz80 jimmyz80 wrote:

For some reason I remember hearing or reading a long time ago that IFDs would behave identically and provide the same callouts whether the TAWS feature was purchased or not. I also asked an Avidyne employee about this recently at the Cirrus Migration expo and he said he was pretty sure I'd get the TAWS callouts even without the TAWS license.

I'm confused though, since the pilot guide seems to imply that I shouldn't get PDA, EDR, or NCR callouts from my non-TAWS IFD540. The root of all of this, is that my Cirrus was originally equipped with the Honeywell EGPWS system, which does provide these callouts. For the last year or so I've kept that system disabled, and enabled FLTA on my IFD so all of my callouts come from one piece of equipment.

Am I missing some capabilities by doing this?


I believe the TAWS option needs to be purchased / activated to get the PDA, EDR, and NCR callouts. All of the other FLTA and altitude callouts come standard with the F500 option.
Back to Top
AviSteve View Drop Down
Admin Group
Admin Group
Avatar

Joined: 12 Feb 2018
Location: Melbourne, FL
Status: Offline
Points: 2253
Post Options Post Options   Thanks (0) Thanks(0)   Quote AviSteve Quote  Post ReplyReply Direct Link To This Post Posted: 04 Dec 2024 at 10:30pm
Originally posted by dmtidler dmtidler wrote:

Originally posted by jimmyz80 jimmyz80 wrote:

For some reason I remember hearing or reading a long time ago that IFDs would behave identically and provide the same callouts whether the TAWS feature was purchased or not. I also asked an Avidyne employee about this recently at the Cirrus Migration expo and he said he was pretty sure I'd get the TAWS callouts even without the TAWS license.

I'm confused though, since the pilot guide seems to imply that I shouldn't get PDA, EDR, or NCR callouts from my non-TAWS IFD540. The root of all of this, is that my Cirrus was originally equipped with the Honeywell EGPWS system, which does provide these callouts. For the last year or so I've kept that system disabled, and enabled FLTA on my IFD so all of my callouts come from one piece of equipment.

Am I missing some capabilities by doing this?


I believe the TAWS option needs to be purchased / activated to get the PDA, EDR, and NCR callouts. All of the other FLTA and altitude callouts come standard with the F500 option.
Confirmed.   With F500, it's just FLTA and altitude callouts.  For the others, TAWS option must be purchased.
Steve Lindsley
Avidyne Engineering
Back to Top
PA23 View Drop Down
Senior Member
Senior Member


Joined: 12 Oct 2019
Location: MMU
Status: Offline
Points: 319
Post Options Post Options   Thanks (0) Thanks(0)   Quote PA23 Quote  Post ReplyReply Direct Link To This Post Posted: 22 hours 21 minutes ago at 2:26pm
Originally posted by AviSteve AviSteve wrote:

Originally posted by dmtidler dmtidler wrote:

Originally posted by jimmyz80 jimmyz80 wrote:

For some reason I remember hearing or reading a long time ago that IFDs would behave identically and provide the same callouts whether the TAWS feature was purchased or not. I also asked an Avidyne employee about this recently at the Cirrus Migration expo and he said he was pretty sure I'd get the TAWS callouts even without the TAWS license.

I'm confused though, since the pilot guide seems to imply that I shouldn't get PDA, EDR, or NCR callouts from my non-TAWS IFD540. The root of all of this, is that my Cirrus was originally equipped with the Honeywell EGPWS system, which does provide these callouts. For the last year or so I've kept that system disabled, and enabled FLTA on my IFD so all of my callouts come from one piece of equipment.

Am I missing some capabilities by doing this?


I believe the TAWS option needs to be purchased / activated to get the PDA, EDR, and NCR callouts. All of the other FLTA and altitude callouts come standard with the F500 option.
Confirmed.   With F500, it's just FLTA and altitude callouts.  For the others, TAWS option must be purchased.


I'm a little confused with the TAWS (FLTA?) capabilities of the IFD400/500 series units and it may just be my confusion of the different terms.

I have in my aircraft an IFD440 and an NGT-9000 (I believe Avidyne is the distributor now of the NGT-9000 so Avidyne should be able to answer this).  My NGT-9000 has the eTAWS enabled and I believe meets TSO C151c, because of this I have disabled FLTA on my IFD and have the audio from the NGT-9000 enabled, based upon what I understand, this is the correct way to go.

Other than the TSO on the NGT, what is the difference in terms of alerting? I do fly another aircraft that doesn't have the NGT-9000 but has an IFD440 is the alerting going to be the same but it hasn't gone through the TSO process?

I thought Avidyne did get a TSO on the 500 series units for TAWS but limited to helicopters, plus this feature required an enablement, is this not correct?  If correct, what is special about helicopters that the enablement can't be used for fixed wing?

The NGT-9000 claims to have "eTAWS" which they list as "enhanced" TAWS, not sure what enhanced is, which leads to the next questions, what is the difference between eTAWS, TAWS, FLTA, and eGPWS.  If I'm reading correctly TAWS now encompasses eGPWS, but FLTA? Is FLTA only part of the TAWS specification?

To add some understanding of levels of TAWS it looks like there are 3 levels, class A, B, and C, class A encompasses B plus some, and class C is class B but has some changes for use in smaller GA airplanes.

-PA
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.070 seconds.