The PA-31-350 Navajo Chieftain is a variation of the Piper PA-31 Navajo which is a family of cabin-class, twin-engine aircraft designed and built by Piper Aircraft for the general aviation market, using Lycoming engines. Using the Lycoming TIO-540-J2BD engine it features a stretched cabin enabling seating for up to 8 passengers and a crew of 1 or 2. The Chieftain variant has a length of 10.55 m and a wingspan of 12.40 m with a height of 3.96 m. The Lycoming TIO-540-J2BD is a air-cooled six-cylinder horizontally-opposed piston engine, 350 hp (261 kW) each while the propellers are a three blade, metal, fully feathering, Hartzell propeller.

Maximum speed: 234 knots (435 km/h, 270 mph) at 15,000 ft (7,315 m)

Cruise speed: 214 knots (396 km/h, 246 mph) econ cruise at 20,000 ft (6,100 m)

Stall speed: 74 knots (137 km/h, 85 mph) flaps down

Range: 1,103 nmi (2044 km, 1,270 mi)

Service ceiling: 27,200 ft (8,290 m)