Lycoming IO-540

Long-running 1940s military trainer design evolved into specialized versions for airshows and aerobatic competition.

Built like a ‘big airplane,’ the Commander is known for rugged and thoughtful design features.

Among the earliest light-twin designs, the Aero Commander set the category’s standard.

Generous interior space and a large entry door tend to keep passengers happy.

A piston twin that left competitors behind, the projectile-shaped design also set numerous speed records.

In the experimental category for now, the speedy traveler is a tempting alternative to legacy piston singles.

The aircraft’s name hints at its ability to carry up to eight passengers or lots of cargo.

Piper stretched its four-place PA-28 to give large families and cargo carriers more options.

T-tail versions of the Piper Lance reflect the popular styling of the period.

A big, pressurized six-seat cabin offers occupants comfort and elbow room.