Garmin received an STC for installation of the G500H helicopter avionics system in the Robinson R44. The installation requires a 10-hole instrument panel. For R44s with the seven- or nine-hole panel, a custom panel is available from Garmin, or customers can purchase one from Robinson. The G500H price is $24,995, and optional helicopter synthetic vision technology adds $8,000. The installation requires a $500 parts kit, and the custom Garmin instrument panel costs $4,500.