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Is the Jetprop finished / doomed in the long term, due to the G1000?

That one is clear; it is a 1994 airframe.

I am still puzzled as to exactly how Piper could prevent a removal of a G1000 system and its replacement with say a G500/G600 / TXi. That is what the whole STC system is for – it supplements the factory TC.

Maybe @malibuflyer knows more?

Administrator
Shoreham EGKA, United Kingdom

Peter wrote:

I am still puzzled as to exactly how Piper could prevent a removal of a G1000 system and its replacement with say a G500/G600 / TXi. That is what the whole STC system is for – it supplements the factory TC.

The problem are integrated features like Crew Alerting System – inputs from different systems/sensors presented on G1000 screens. On pre-G1000 airframes these systems were presenting info via some annunciator. Replacing 6-pack with TXi doesn’t affect these systems or their annunciators. However, in G1000 airframe these systems have their annunciation on G1000 screens and removing G1000 leaves you without indication because TXi doesn’t support this feature. It’s part of Garmin’s policy “once G1000 always G1000” – that’s the deal they made with airframe manufacturers when introducing G1000. The story they were selling at the beginning of G1000 that this was modular system is basically just sales story which failed with next generation of LRUs non-compatible either with the rest of hardware of with software.

LDZA LDVA, Croatia

Emir wrote:

It’s part of Garmin’s policy “once G1000 always G1000”

For these reasons I was advised years ago to ‘never buy an aircraft with a G1000’, as you are stuck with it, whatever the future brings

Peter wrote:

Maybe @malibuflyer knows more?

Agree to Emir that the Annunciator Panel could be one of the challenges which might be hard to overcome from a certification point of view. At least technically, however, the TXI should be able to show annunciator messages.

Even more difficult could be the cabin pressurization system: At least in some G1000 Malibu models the entire pressurization monitoring (cabin alt, diff pressure, etc.) is also integrated in the G1000 (not sure if there are also versions with separate pressure controls). I’m pretty sure that the TXI (at least currently) does not support cabin pressure control.
I’d assume it is almost impossible and surely economically unattractive to retrofit an “analog style” cabin pressurization system into a G1000 Malibu – both from legal (STC) as well as from practical POV

Germany

Malibuflyer wrote:

I’m pretty sure that the TXI (at least currently) does not support cabin pressure control.

No. And that’s not Garmin’s development strategy – they don’t want to develop G1000 NXi replacement with TXi; they want to address avionics retrofit market leaving as many as possible airframe specific things “as is”.

Malibuflyer wrote:

I’d assume it is almost impossible and surely economically unattractive to retrofit an “analog style” cabin pressurization system into a G1000 Malibu – both from legal (STC) as well as from practical POV.

I’m pretty sure you’re right. G1000 and airframe marriage is for life, sealed with TC.

Last Edited by Emir at 27 Mar 05:36
LDZA LDVA, Croatia

I’d love to read a Jet Prop POH sometime. If anyone has a soft copy it would be great to read that. The Jet Prop is the dream.

Buying, Selling, Flying
EISG, Ireland

OK so no actual legal reason why a G1000 PA46 cannot be converted. Just nobody wants to fund the STC, and a 2008 airframe is plenty recent enough to be acceptable.

Administrator
Shoreham EGKA, United Kingdom

I’d love to read a Jet Prop POH sometime.

Here

Last Edited by denopa at 27 Mar 17:36
EGTF, LFTF

I’d love to read a Jet Prop POH sometime.

Here

Yes, I think I might have to join up the MMopa to get the manuals. That link is one to buy the manuals, maybe the owner’s group would be a good investment first. I know a guy who has the 1988 model converted with the -21 engine. Looking at some of the material online it seems like the older airframes with the -21 engine could be the best value buy, but not necessarily the highest performance. The one I got the flight in was a 1999 model with a -34 engine which was superb.

Buying, Selling, Flying
EISG, Ireland
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