Piasecki 16H Pathfinder

The Piasecki 16H was a series of compound helicopters produced in the 1960s. The first version of the Pathfinder, the -1 version, first flew in 1962. The similar but larger Pathfinder II, the 16H-1A, was completed in 1965.

Variants

 * Model 16H-1 Pathfinder : one PWC PT6B-2 with one 405 shp turboshaft engine
 * Model 16H-1A Pathfinder II : larger version with one 1250 shp T58-GE-8
 * Model 16H-1C Pathfinder III : proposed conversion of the 16H-1A with one 1500 shp T58-GE-5
 * Model 16H-3J : nine-seat development, not built.