Hangar Debrief
An email newsletter for builders, pilots and maintainers of experimental, light-sport and general aviation aircraft.
3 articles tagged IFR
Avionics & Electrical
The electrical load of a glass IFR panel, from the installation manuals
Added up from the manufacturers' installation manuals, a two-display Garmin G3X Touch panel with a G5, GNC 355, GTR 205, GMA 245 and GMC 507 draws about 8.4 amps at 14 volts in cruise, before lights, pitot heat and the fuel pump. Radios jump when transmitting: a GTR 205 goes from 0.84 A to 3.62 A. 14 CFR 91.205 asks for a generator or alternator "of adequate capacity" for IFR.
27 Oct 2026
Avionics & Electrical
One IFR panel three ways: G3X Touch with a GTN, AXIS, or SkyView HDX with a GTN, priced
For the display, IFR navigator, NAV/COM and audio panel alone, a G3X Touch 10.6 with a GTN 650Xi and GMA 245 lists at $22,370. An 11.6-inch AXIS with all of that built in is $20,975. A SkyView HDX 10 with the same Garmin stack and Dynon's ARINC 429 module is $22,088. Sensors, servos, antennas and wiring are extra in every case.
24 Oct 2026
Avionics & Electrical
Backup instruments for an all-glass panel: what 91.205 lists, and what builders choose
14 CFR 91.205(d) lists the instruments for IFR, among them a gyroscopic pitch and bank indicator, a direction indicator and a slip-skid indicator. In an all-glass panel, a small backup display with its own battery is the usual answer. In Hangar Flying's 2026 designs the Garmin G5 leads (783 designs), then the GI 275 (407), the uAvionix AV-30 (167) and the Dynon D30 (107).
19 Oct 2026