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 Post subject: Which GPSS?
PostPosted: 23 Sep 2010, 13:14 
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Joined: 02/02/08
Posts: 813
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Location: Reading, PA (KRDG)
Aircraft: 1976 Bonanza V35B
I'd like to install a GPSS in my plane, currently have a Century IIB autopilot which works fine. My preference is for the Icarus SAM because of the audio call outs and the way it would fit into the old King DME cut out, but looks like those are over $2K new. So in trying keep the cost down so I searched for a used one, was quoted (used) from Wentworth:

STEC ST901 $1,295
DAC GDC31 $750

What's the difference between the STEC and the DAC? My future plans for the plane may include an AP upgrade or an add on like the STEC 60 PSS. Would I be better going with the STEC GPSS if that's the case?

Thanks for any feedback.

Richard


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 Post subject: Re: Which GPSS?
PostPosted: 23 Sep 2010, 13:34 
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Joined: 06/04/09
Posts: 4188
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Company: Usually good
Location: Chicago - Milwaukee, IL (KUGN)
Aircraft: 1968 Bonanza V35A
I like my SAM unit. Works flawlessly.


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 Post subject: Re: Which GPSS?
PostPosted: 23 Sep 2010, 14:15 
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Joined: 01/02/08
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Location: Missouri
Aircraft: A36
Last time I checked the STEC wasn't able to be used with the C IIb..the DAC 31 is cheaper and works very well...install is EZ too...that's the set up I'm flying now and I have no complaints.

_________________
Good judgment comes from experience, and a lot of that comes from bad judgment-Will Rogers


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 Post subject: Re: Which GPSS?
PostPosted: 23 Sep 2010, 14:17 
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Joined: 11/27/07
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Company: BeechTalk
Location: Pontiac, MI (KPTK)
Aircraft: 1991 Bonanza A36
I recently installed a used STEC ST901 that is coupled with my STEC 55 (non-X) autopilot. The combination works very well and I'm pleased I did it.

Unfortunately, I don't have experience with the other available GPSSs (that's a lot of "s").


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 Post subject: Re: Which GPSS?
PostPosted: 23 Sep 2010, 14:39 
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Joined: 02/02/08
Posts: 813
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Location: Reading, PA (KRDG)
Aircraft: 1976 Bonanza V35B
Username Protected wrote:
I like my SAM unit. Works flawlessly.


Come on Bo, you know that's the one I REALLY want, you're not helping me save any $ here! :D


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 Post subject: Re: Which GPSS?
PostPosted: 23 Sep 2010, 14:45 
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Location: Reading, PA (KRDG)
Aircraft: 1976 Bonanza V35B
Username Protected wrote:
Last time I checked the STEC wasn't able to be used with the C IIb..the DAC 31 is cheaper and works very well...install is EZ too...that's the set up I'm flying now and I have no complaints.


Thx Jeff. Looks like the DAC is the most cost effective way to go.


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 Post subject: Re: Which GPSS?
PostPosted: 23 Sep 2010, 16:36 
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Joined: 12/02/09
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Company: Portal Consulting
Location: Deer Valley
Aircraft: Bonanza S35
The Icarus SAM smokes the others. and does verbals for altitude alerting, EDM, gear down etc, vacuum, voltage, etc. I wouldn't be without the one in my Bonanza.

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David Gates


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 Post subject: Re: Which GPSS?
PostPosted: 23 Sep 2010, 20:47 
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Joined: 05/23/08
Posts: 36
Location: (KFAR) Fargo, ND
Aircraft: BONANZA B36TC
+1


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 Post subject: Re: Which GPSS?
PostPosted: 23 Sep 2010, 21:02 
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Joined: 01/21/10
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Location: Leander, TX (KRYW)
Aircraft: 1981 TNIO-550 A36
Oddly enough, I was looking the the Icarus SAM last night. Looks like about 3.5AMU to 4AMU installed.

Thats half way to a Aspen install (after I sell off my no longer need King KCS-55A and KI-256) and pressure system (if I can find a battery backed up AI that meets the back up requirements).

I am guessing you could probably get the DAC unit installed for 2k and that seems a little easier to swallow - but I love all the features of the SAM, so I am torn (although its not happening anytime soon).

Next year I need an ELT battery, so maybe the ACK-04 will be reality and then if they have to open everything up to run the GPS signal to it I might as well upgrade my SL70R to a GTX33/ES and add a GPSS and.....

Things to ponder on a rainy day, I guess.

Kevin

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Last 12: Tail Wheel, AGI, IGI, CFI, IPC, ABS Instructor Academy, CFII


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 Post subject: Re: Which GPSS?
PostPosted: 24 Sep 2010, 01:42 
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Joined: 12/10/07
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Location: Minneapolis, MN (KFCM)
Aircraft: 1970 Baron B55
Username Protected wrote:
Oddly enough, I was looking the the Icarus SAM last night. Looks like about 3.5AMU to 4AMU installed.

Thats half way to a Aspen install (after I sell off my no longer need King KCS-55A and KI-256) and pressure system (if I can find a battery backed up AI that meets the back up requirements).

I am guessing you could probably get the DAC unit installed for 2k and that seems a little easier to swallow - but I love all the features of the SAM, so I am torn (although its not happening anytime soon).

Next year I need an ELT battery, so maybe the ACK-04 will be reality and then if they have to open everything up to run the GPS signal to it I might as well upgrade my SL70R to a GTX33/ES and add a GPSS and.....

Things to ponder on a rainy day, I guess.

Kevin

I first installed a GDC-31 but it caused some comm interference (probably unique to a Baron installation) and replaced it with a SAM when they first came out. I like the capabilities of the SAM so much I feel that replacing it with the GPSS in an Aspen PFD would be a big letdown. If you're buying new, the difference in the unit's cost isn't really significant but due to all the extra inputs needed for the SAM to perform all it's tricks, the install labor could easily double what it would take for a GDC-31.

So if an Aspen is part of your plan in the not too distant future I'd go with the DAC unit but if you're likely to be flying steam gauges for at least four more years I think you'd also find the SAM well worth the extra cost.

P.S. I think you've already discovered that the S-Tec GPSS STC won't cover an installation that connects it to someone else's autopilot. Other than that, the S-Tec and the DAC GPSS units do pretty much the same thing.

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-lance
Advice in this post may contain errors. Using said advice is totally at the risk of the user.


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 Post subject: Re: Which GPSS?
PostPosted: 24 Sep 2010, 02:01 
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Joined: 04/08/08
Posts: 2484
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Location: Provo, Utah
Aircraft: Bonanza A36
I love my SAM unit. I particularly enjoy the verbal altitude alerts when things get busy. Great unit.

-MO


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 Post subject: Re: Which GPSS?
PostPosted: 24 Sep 2010, 08:23 
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Joined: 02/02/08
Posts: 813
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Location: Reading, PA (KRDG)
Aircraft: 1976 Bonanza V35B
Thanks guys, good info I appreciate it.


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 Post subject: Re: Which GPSS?
PostPosted: 24 Sep 2010, 08:24 
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Joined: 02/03/08
Posts: 59
Location: KIWS (West Houston Airport
Aircraft: 1979 A36 TN
Another option is to buy a used Sandel 3308. They are available on Ebay from time to time and the GPSS is built in.


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 Post subject: Re: Which GPSS?
PostPosted: 24 Sep 2010, 08:46 
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Joined: 01/07/08
Posts: 527
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Location: Raleigh, NC (KRDU)
We had a SAM and liked it but pulled it when we installed the Aspen (which includes GPSS). No complaints and if I had to do it over again now I would just go with the Aspen in the first place.


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 Post subject: Re: Which GPSS?
PostPosted: 24 Sep 2010, 10:27 
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Joined: 06/04/09
Posts: 4188
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Company: Usually good
Location: Chicago - Milwaukee, IL (KUGN)
Aircraft: 1968 Bonanza V35A
Username Protected wrote:
I like my SAM unit. Works flawlessly.


Come on Bo, you know that's the one I REALLY want, you're not helping me save any $ here! :D

Well, it really needs a SEXY voice, .....

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