(Piper) PA-34 Seneca @·AIRCRAFTUBE

  • Piper PA-34 Seneca Piper PA-34 Seneca
    Piper PA-34 Seneca
  • PA-34-200T Seneca II PA-34-200T Seneca II
    PA-34-200T Seneca II
  • Piper Seneca III Piper Seneca III
    Piper Seneca III
  • PA-34-220T Seneca V PA-34-220T Seneca V
    PA-34-220T Seneca V
  • Piper PA-34-200T Seneca II Piper PA-34-200T Seneca II
    Piper PA-34-200T Seneca II
  • PA-34 Seneca II PA-34 Seneca II
    PA-34 Seneca II
  • PA-34 Seneca III PA-34 Seneca III
    PA-34 Seneca III
  • PA-34-200T Seneca II PA-34-200T Seneca II
    PA-34-200T Seneca II
  • PA-34 Seneca II PA-34 Seneca II
    PA-34 Seneca II
  • Seneca V Seneca V
    Seneca V
  • PA-34 Seneca II PA-34 Seneca II
    PA-34 Seneca II
  • PA-34-200 PA-34-200
    PA-34-200
  • Piper PA-34-200T Piper PA-34-200T
    Piper PA-34-200T
  • PA-34-220T Seneca V PA-34-220T Seneca V
    PA-34-220T Seneca V
  • Piper PA-34-220T Seneca III Piper PA-34-220T Seneca III
    Piper PA-34-220T Seneca III
  • The PA-34-200 has Lycoming IO-360-C1E6 engines The PA-34-200 has Lycoming IO-360-C1E6 engines
    The PA-34-200 has Lycoming IO-360-C1E6 engines
  • PA-34 Seneca II PA-34 Seneca II
    PA-34 Seneca II

Piper PA-34 Seneca

The Piper PA-34 Seneca is an American twin-engined light aircraft, produced by Piper Aircraft since 1971 and still in production in 2012. The Seneca is primarily used for personal and business flying.

Development

The Seneca was developed as a twin-engined version of the Piper Cherokee Six. The prototype was a Cherokee Six that had wing-mounted engines installed, retaining its nose engine. The prototype was flown as a tri-motor aircraft in the initial stages of the test-flying program.

PA-34-180 Twin Six

With the decision to abandon the three-engined design tested on the PA-32-3M, the PA-34 was developed as a twin-engined design. The prototype PA-34-180 Twin Six, registered N3401K first flew on 25 April 1967. The prototype had two 180 hp (134 kW) Lycoming O-360 engines, a fixed nosewheel landing gear and a Cherokee Six vertical tail. The second prototype flew on 30 August 1968, still with the 180 hp (134 kW) Lycomings but had retractable landing gear and a taller vertical tail. During development flying the wingspan was increased by two feet. The third prototype was closer to the production standard and flew on 20 October 1969; it was fitted with 200 hp (149 kW) Lycoming IO-360-A1A engines.

PA-34-200 Seneca I

Certified on 7 May 1971 and introduced in late 1971 as a 1972 model, the PA-34-200 Seneca I is powered by pair of Lycoming IO-360-C1E6 engines. The righthand engine is a Lycoming LIO-360-C1E6 engine variant, the "L" in its designation indicating that the crankshaft turns in the opposite direction, giving the Seneca I counter-rotating engines. The counter-rotating engines eliminate the critical engine limitations of other light twins and make the aircraft more controllable in the event of a shut down or failure of either engine. A total of 934 Seneca I models were built, including one prototype.

The early Seneca I models have a maximum gross weight of 4,000 lb (1,810 kg), while later serial numbers allowed a takeoff weight of 4,200 lb (1,910 kg).

PA-34-200T Seneca II

Responding to complaints about the aircraft's handling qualities, Piper introduced the PA-34-200T Seneca II. The aircraft was certified on 18 July 1974 and introduced as a 1975 model.

The new model incorporated changes to the aircraft's control surfaces, including enlarged and balanced ailerons, the addition of a rudder anti-servo tab, and a stabilator bobweight.

The "T" in the new model designation reflected a change to turbocharged, six cylinder Continental TSIO-360E or EB engines for improved performance, particularly at higher altitudes. The Seneca II retained the counter-rotating engine arrangement of the earlier Seneca I.

The Seneca II also introduced optional "club seating" whereby the two center-row seats face rearwards and the two back seats face forward allowing more legroom in the passenger cabin. A total of 2,588 Seneca IIs were built.

Gross weights are 4,570 lb (2,070 kg) for takeoff and 4,342 lb (1,969 kg) for landing, with all weight in excess of 4,000 lb (1,800 kg) required to be fuel.

PA-34-220T Seneca III

In 1981, the PA-34-220T Seneca III was introduced, having completed certification on 17 December 1980.

The change in model designation reflected an engine upgrade. Continental TSIO-360-KB engines were used which produced 220 horsepower (165 kW), although only rated as such for five minutes and then dropping to 200 hp (149 kW)).

The horsepower increase, with the new engines' limit of 2800 rpm (up from 2575 rpm), combined for much improved climb and cruise performance. The new aircraft also incorporated a one-piece windshield and a bare metal instrument panel instead of one covered with a removable plastic fascia; some models have electrically-actuated flaps. More than 930 Seneca IIIs were built; the last 37 Seneca IIIs built had a 28-volt electrical system rather than the 14-volt system of previous aircraft.

The aircraft's gross weight was increased to 4,750 lb (2,155 kg) for takeoff and 4,513 lb (2,047 kg) for landing. A typical Seneca III with air conditioning and deicing equipment has a useful load of 1,377 lb (625 kg).

PA-34-220T Seneca IV

In 1994, the "New" Piper Aircraft company introduced the Seneca IV, having achieved certification on 17 November 1993. This model was similar to the Seneca III offering minor improvements, such as a streamlined engine cowl for increased cruise performance. It continued to use the counter-rotating Continental TSIO-360-KB engines and gross weights remained unchanged. A total of 71 Seneca IVs were built.

PA-34-220T Seneca V

Certified on 11 December 1996, the Seneca V was put into production as a 1997 model year. Again the cowls were redesigned for increased performance, several cockpit switches were relocated from the panel to the headliner, and an improved engine variant, the Continental TSIO-360-RB, fitted with an intercooler, was used.

The Seneca V's gross weights remain the same as the Seneca III and IV at 4,750 lb (2,155 kg) for takeoff and 4,513 lb (2,047 kg) for landing, therefore, with all of the added features, the useful load is reduced by about 200 lb (91 kg). The standard useful load for the 2014 model is 1,331 lb (604 kg) but typically is 1,134 lb (514 kg) when the aircraft is equipped with air conditioning, deicing equipment and co-pilot instruments.

Embraer EMB-810 Seneca

From 1975 the Seneca was built under licence in Brazil by Embraer as the EMB-810. The PA-34-200T was produced as the EMB-810C Seneca (452 built) and the PA-34-220T as the EMB-810D (228 built).

Civil operators

The aircraft is popular with air charter companies and small feeder airlines, and is operated by private individuals and companies. One notable civil operator is the Costa Rican Air Surveillance Service.

Military operators

  • Brazilian Air Force (EMB 810C Seneca).
  • Honduran Air Force.
  • Panamanian Public Forces.
  • Serbian Air Force.

Notable accidents and incidents

17 February 1982 a Piper Seneca crashed near Hanover, Germany. The only survivor was football manager Uli Hoeneß.

18 August 2012 a PA-34-200 Seneca crashed off the coast of Masbate, Philippines, killing Philippine Interior and Local Government Secretary Jesse Robredo.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Piper PA-34 Seneca of Wikipedia ( authors )

Specifications (PA-34-220T Seneca V)

  • Crew : One.
  • Capacity : Five or six passengers.
  • Length : 28 ft 7.44 in (8.72 m).
  • Height : 9 ft 10.8 in (3.02 m).
  • Wingspan : 38 ft 10.87 in (11.86 m).
  • Wing area : 208.7 ft² (19.39 m²).
  • Wing loading : 21.2 lb/ft² (104 kg/m²).
  • Airfoil : laminar flow NACA 652-415.
  • Empty weight : 3212 lb (1457 kg).
  • Loaded weight : 4773 lb (2165 kg).
  • Max. takeoff weight : 4750 lb (2155 kg).
  • Never exceed speed : 204 knots (378 km/h, 235 mph).
  • Maximum speed : 204 knots (378 km/h, 235 mph) at 23,000 ft (7,000 m).
  • Cruise speed : 188 knots (348 km/h, 216 mph) econ cruise at 25,000 ft (7,600 m).
  • Stall speed : 61 knots (113 km/h, 70 mph) wheels and flaps down.
  • Range : 870 nmi (1611 km, 1000 mi) max fuel, econ cruise at 18,000 ft (5,500 m), no reserves.
  • Service ceiling : 25,000 ft (7,620 m).
  • Rate of climb : 1550 ft/min (7.87 m/s).
  • Powerplant : Two Continental TSIO-360RB and LTSIO-360RB 6-cylinder, air-cooled, horizontally-opposed piston engine.
  • Power : 220 hp (164 kW) each.
  • Power/mass : 0.1 hp/lb (164 W/kg).

— — — = = — — —

This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Piper PA-34 Seneca of Wikipedia ( authors )
Piper PA-34 Seneca : Your comments on this subject
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