- ARINC 429 and Dual RS 232 Outputs
- Certified as an Altitude Encoder
- Virtually no warm up time
Sandia’s SAC 7-35 Air Data Computer provides high quality certified air speed and altitude indications at surprisingly affordable price. Get accurate data when and where you need it, without breaking the bank.

SAC 7-35 Air Data Computer
$2,895.00
SANDIA Aerospace has set yet another standard with the SAC 7-35 Airdata Computer for General Aviation. The SAC 7-35 gives you more bang for your navigation buck Whether you’re upgrading to one of the new generation navigation system or just wanting to get the most out of the system already installed in your aircraft, the SAC 7-35 should be at the top of your system options.
* The SAC 7-35 has two part numbers. The Part number 705548-01 supports ADS-B with the TDR94D and the Garmin Navigators.
SANDIA Aerospace has set yet another standard with the SAC 7-35 Airdata Computer for General Aviation. The SAC 7-35 gives you more bang for your navigation buck Whether you’re upgrading to one of the new generation navigation system or just wanting to get the most out of the system already installed in your aircraft, the SAC 7-35 should be at the top of your system options.
The SAC 7-35 is four systems in one:
- Altitude Encoder. The SAC 7-35 is FAA TSO Approved as an altitude encoder. It provides standard Gillham Grey code for legacy transponders and RS-232 data for the new generations of transponders.
- Altitude Alerting. The SAC 7-35 has SANDIA Aerospace’s exclusive AIM (Altitude Inflight Monitoring) that alerts the pilot anytime he deviates more than 100 feet from his selected altitude.
- Fuel Flow. The addition of a fuel flow transducer (two for a twin) and your SAC 7-35 provides all the fuel flow data your navigation systems needs to monitor your fuel situation.
- Airdata Computer. The SAC 7-35 is a full up TSO’d Airdata Computer offering all of the functions and capabilities of systems costing thousands of dollars more. The SAC 7-35 has multiple interface formats that allow it to provide data to a wide variety of avionics systems.
Designed and manufactured to most exacting standards, you can depend on SANDIA Aerospace products to provide years of reliable service. And every product is backed by a three year warranty and personal service support.
Canadian TAWS Information
Sandia Aerospace SAC 7-35 Airdata Computer has now been approved by Sandel for the Sandel ST3400 TAWS Class A display. The Sandel TAWS and the Sandia SAC 7-35 solution also meets the new Transport Canada requirements for Enhanced Altitude Accuracy (EAA ) as referenced in the Transport Canada Advisory Circular for (TAWS) AC 600-003.
Transport Canada has already approved several solution of the Sandel ST3400 TAWS Class A display, integrated with existing compatible GPS receivers such as the Garmin GNS400/500 and GTN6XX/7XX Series Navigators with A dedicated and compatible Sandia Aerospace SAC 7-35.
STC # O-LSA13-016/D, Sandel ST3400 Class A TAWS , Sandia SAC 7-35
STC # SA12-78 Sandel ST3400 TAWS Class A, Sandia SAC 7-35
STC# O-LSA10-015/D, Garmin 430/530, TAWS, Dual Sandia SAC 7-35
STC# O-LSA10-022/D, Garmin 430/530, TAWS, Dual Sandia SAC7-35
This is an ideal cost effective solution for Canadian Fix wing operators which not only meets current regulatory requirements, but also eliminates the risk/expense of future compliance costs for enhanced altitude accuracy by 2017. The SAC 7-35 Airdata Computer
Weight | 1.18 lbs |
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Dimensions | 5.62 × 4.87 × 1.89 in |
Version | 705548-00, 705548-01 |
Q: What speed is the ARINC 429?
A: High speed is the only supported speed.
Q: Can the airspeed be field adjusted?
A: Yes, the instructions are located in installation manual.
Q: Why will the SAC 7-35-XX will not communicate during setup?
A: 1) What kind of terminal emulator are you using? Hyper terminal is the most common used. (baud: 9600, bits:8, stop bits:1, parity: none) and connected to COM:1 port of the computer. 2) Bad DIN connector. 3) No ADC power. 4) Once the ADC is connected to the computer, cycle the power on the ADC and check for the configuration page on the computer screen.
Q: Why does the configuration page look like science code with symbols?
A: Ensure the the Power connector and the DIN cable are the only ones connected, and then recycle power.
Q: Will the fuel flow subtract the fuel that is returned to the tank?
A: No, there is not a subtracter module available.
Q: Should you use 429 or 232 with the Garmin International 430/530?
A: Either, the choice is the installers. The difference is that the 232 does NOT support Baro correction.
A: There are 2 known reasons: 1)The synco is probably mis-wired. 2) You will need to have a peanut converter installed to boast the 26Vac 400hz. Mid Continent sells a unit to handle this issue.
Q: Is there a connector kit supplied with the unit?
A: Yes, there is a connector kit supplied with the unit.
A: Yes, the instructions are located in installation manual.
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