uAvionix has been teasing an HSI adapter for IFR navigation for some time but it appeared in the flesh during this year’s Sun ‘n Fun airshow. The AV-HSI is an ARINC 429 adapter necessary for conveying vertical and lateral guidance from IFR GPS units and conventional VHF nav radios that use a digital connection to outboard indicators. (Meaning: Not old-style analog types, so it’s finally time to retire your KX-155.) In addition, the new AV-HSI allows two AV-30s to be connected so that their key settings will sync between displays—items like heading and baro setting. The AV-HSI for Experimentals is available now for $595, a certified version is coming later in the year for $695.
In Case You Missed It
Aero ‘lectrics
Jim Weir takes a look at the performance of a DIY ground-plane antenna versus a factory-built rubber duckie on a handheld GPS receiver.
Viewfinder
Marc Cook looks at the possibility of Glasair Aviation initiating a new Two Weeks to Taxi builder-assistance program for the Van's RV-10.
IFR GPS Buyer’s Guide: Avidyne and Garmin
Selecting a GPS for your project has never been easy, even in the early...