A brief history of Piper PA-34 Seneca

PA-34-200T Seneca II

The Piper PA-34-200T Seneca II was introduced as a 1975 model in response to complaints regarding the handling of its predecessor, the PA-34. This aircraft was certified by the Federal Aviation Administration on 18 July 1974, and released for public sale in 1975. The new aircraft incorporated altered controls to the aircraft, including enlarged and balanced ailerons, a rudder anti-servo tab, and a stabilator bobweight.

The Seneca II also introduced optional “club seating” interchangeable to the front seats of two inward-facing seats and the tail seats of two forward-opening seats, offering passengers more room to stretch out. The Seneca II totaled 2,588 units.

PA-34-220T Seneca III

The PA-34-220T Seneca III was first certified in 1981. Engine modifications reflected a change in the model designation, featuring the Continental TSIO-360-KB engine, rated at 220 hp (165 kW) for five minutes and then dropping to 200 hp (149 kW).

The airplane also included a one-piece cockpit glass panel and a bare metal instrument panel in place of one that was covered with a detachable plastic coating.

PA-34-220T Seneca IV

In 1994, the “New” Piper Aircraft company introduced the Seneca IV, having received FAA certification in November 1993. This model was similar to the Seneca III offering improvements, such as a streamlined engine cowl for greater efficiency.

PA-34-220T Seneca V

Certified in December 1996, the Seneca V was produced as a 1997 model year. Numerous cockpit switches were taken from the control panel and connected to the overhead headliner and again the cowls were redesigned for increased performance.

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