Garmin GNS430 Series still going strong?

The Garmin GNS430 came in 1998 and the first version was a 28V unit and a couple years later a 14/28V was released followed by a GNS430 with internal terrain database. In approximately 2006 the Garmin GNS430W (WAAS) was introduced. The list price 2019 for a GNS430 to GNS430W upgrade is USD 4495, another 300 Euro for the WAAS STC. A few hours to replace the existing GA56 for a GA35 GPS antenna and a few hours to complete the paperwork. The list price for the GNS430 in 1998 was USD 9250 and the second hand price is still very high, specially for the 430W model. In recent years we have installed many used GNS430/GNS430W and if you are able to find one to a reasonable price this may well be a fair deal. The picture below shows the second Socata TB10 that we modified belonging to Gotlands Flygklubb. Garmin GMA345 Bluetooth audiopanel/intercom, used GNS430W COM/NAV/GPS 1, GNC255A COM/NAV 2, Trig Avionics TT31 ADS-B out transponder.

8.33kHz COM frequencies and Navigation database incompatibility – ie the GNS430/W is not able to retrieve and display frequency information from the navigation database for 8.33kHz channels. This also affects Garmin G500/G1000 with older software versions. Garmin recently released a Service Advisory No: 1865A with information about this issue –1865A

Aspen Avionics Evolution E5 EFIS

The Aspen Avionics E5 EFIS display has finally received FAA STC approval but we will have to wait some more for the EASA STC.  Just like the Garmin G5 the Aspen E5 is not TSO approved and must be installed in accordance with the  FAA/EASA STC.

The E5 is a downscaled version of the EFD series and lacks OAT, backup GPS and some of the more advanced features found in the EFD1000PRO. Pricing of the E5 is about $5000 and $6000 with ACU module (required for autopilot connection) which make the E5 it slightly more expensive than the Garmin G5 ATT/HSI combination.

The Aspen EFD1000PRO requires that a backup attitude indicator remains installed but the with the E5 the attitude indicator may be removed if you keep the T/B indicator, this makes it possible to also remove the aircrafts vacuum system. For more information about the E5 system click here

Garmin GTN750 Navigation system in a Seneca V

The Garmin GTN750 COM/NAV/GPS Navigation system installed in a Seneca V with the optional Garmin Flight Stream 510 WiFi/Bluetooth adapter for wireless database updates and flight plan transfer using the Garmin Pilot software available both for Ipad and Android tablets. The optional remote audio panel/intercom Garmin GMA35c  (with Bluetooth) is controlled via the Garmin GTN750 display and the gives the pilot full control over the complete audio system. The latest EASA approved software 6.50 includes many new functions such as aural terrain alerts for non TAWS units.

The existing Avidyne radar display was removed due to malfunction and instead the Bendix/King ART2000 radar transceiver was connected directly to the GTN750 (requires a separate software radar unlock). The installation was also prepared with a few extra wires in case the owner decides to replace the already installed King KT74 ADS-B out transponder for a Garmin GTX345 ADS-B in/out solution.

Trig Avionics TT31 Mode-S transponder / EASA STC for ADS-B out

The Trig Avionics TT31 Mode-S transponder has been a popular direct plug play replacement for the King KT76A series transponders. A free EASA Minor change has been available that covers the replacement but has lacked ADS-B approval despite the TT31 ADS-B out capability. Just recently Trig announced that the already existing FAA approved ADS-B out STC has been validated by EASA (free for all Trig Avionics dealers). You will however need an approved WAAS GPS position source such as the Garmin GTN/GNS. Older TT31 transponders will also require a firmware upgrade.


Garmin GTR225A COM 8.33kHz

The Garmin GTR225A COM 8.33kHz with internal frequency database (when connected to a GPS position source), 2 place intercom has become the no 1 choice for those aircraft only needing  a single com. We have received positive feedback also regarding the integrated intercom specially in those aircrafts that previously had a Sigtronics SPA400 or other low cost intercom system installed. We really like this unit for its quality, intercom, frequency database, user friendly interface and most of all – customer satisfaction. Garmin GTR rebate will end in December 2018 but we still have a few in stock to a reduced price.

Dual Garmin G5 Attitude/HSI

The Garmin G5 “mini” EFIS may be installed in many different combinations both in certified and experimental aircraft. The installation shown below included the removal of existing audiopanel, both COM/NAV’s and installation of dual Garmin GNS430 in combination with dual Garmin G5 indicators attitude/HSI as well as a remote magnetometer and Arinc NAV interface.  On top we see a Garmin GMA345 audiopanel with bluetooth connectivity and a USB charging port.

The G5 can not replace an attitude gyro that is connected to an autopilot like the Century II/III and Bendix/King KAP 100/150 series. KAP140 and Stec autopilots use the turn coordinator as the attitude reference and in these cases both the existing attitude and directional gyro may be removed so you can say goodbye to those old vacuum driven gyros.

Garmin seminar at Västerås airport / Hässlö Flygförening

A PDF copy of the presentation may be downloaded via the links below.
Garmin Presentation / Västerås, Sweden.
Introduction and installation requirements

In march, Garmin regional aviation sales manager Fabian Kienzle, responsible for Central, Eastern Europe, Nordics will visit Sweden. Saturday 10th March a Garmin information meeting will be held at Västerås Airport in cooperation with Samionics and Hässlö Flygförening.

The preliminary agenda is shown below.

Garmins latest avionic upgrades, incl. TXi, autopilots and more.
10:00 Doors open, complimentary coffee and snacks
10:30 Introduction Samionics
10:45 Garmin Seminar Part 1 – Garmin overview / Panel updates / G5 / TXI
11:45 Complimentary lunch break / Demo-equipment / Individual discussions
12:30 Garmin Seminar Part 2 – ADS-B / Connext / Autopilots
13:30 Q&A / Discussion
14:00 Wrap Up, End of event

Garmin GMA345 audiopanel with bluetooth capability

We have previously installed quite many Garmin GTN650 COM/NAV/GPS and Garmin GNC255A COM/NAV but this was the first time we had the opportunity to also install a Garmin GMA345 audiopanel with bluetooth. Now you are able play music and even make phone calls over the aircrafts intercom system. The GMA345 has a USB charging port (2Amp) on the front panel, internal marker receiver and 6 place intercom system. Our initial tests and customer feedback has been really positive. The picture below is taken from a PA28-181 that belongs to Linköpings Flightclub who will have 2 ea aircraft equipped with identical avionics.


To upgrade or not and the path to go. First question, do you need WAAS, if yes then continue reading.

If you already have a Garmin GNS430 installed there are a few options available. Most economical is to upgrade the existing GNS430 for GNS430WAAS (about $4300 for the hardware upgrade) another 300 Euro for the LPV STC, about 1-3 hours replacing the existing GPS antenna Garmin GA56 for a Garmin GA35 (needs a new connector and possibly also a new antenna cable) and a few hours to compile the work pack.

Second option is an Avidyne IFD440 which will fit into the same tray and needs no installation. The antenna will need to be replaced but a free STC is available from Avidyne. You can sell the old GNS430 on the used market for a reasonably good price. The IFD440 is a modern touch screen unit with bluetooth and wifi connectivity (unlocks purchased separately).

Third option is the Garmin GTN650. This is the way to go specially if the instrument panel needs additional avionics such as an audiopanel, second COM/NAV and/or ADS-B transponder. Garmin has a wide range of free STC’s available so no additional installation approval applications will be necessary.

Garmin G5 digital attitude and/or DG

New arrival – first batch of Garmin G5 digital EFIS indicator’s.

The G5 can be configured as an attitude indicator and if connected to a Garmin GMU11 magnetometer it will also display magnetic bearing or may be configured to act as a compass system (HSI). The main unit has only 1 ea RS232 input port thus if used as an HSI the Garmin GAD29B will come in handy and expand the system with 4 ea ARINC 429 inputs. Traditional old NAV units with only analog outputs will not be compatible with the G5 but all modern units such as the Garmin GNS430/W, GTN650 and GNC255 will work just fine.

The G5 has a built in GPS that is required for optimum operation. In certified installations you must use an external approved GPS antenna such as the Garmin GA35 or supply the G5 with GPS data from an external approved GPS position source such as the GNS430/W, GTN650. In experimental aircraft and if you have a good GPS signal, the built in internal GPS antenna will do just fine.