The Cessna Conquest - a 40-year-old pressurized twin turboprop - remains a capable family hauler for owner-pilots who do their homework and tap into a tight-knit community.
The Garmin GFC 500 brought certified autopilot technology with envelope protection to legacy piston aircraft for $10,000–$14,000 installed - a fraction of previous costs.
The Garmin GI 275 drops a solid-state glass display into a standard round gauge cutout, giving legacy aircraft modern instrumentation without a full panel retrofit.