Main Menu

Piper PA-34 Seneca
PZL Mielec M 20 Mewa

Embraer EMB-810 Cuesta
Neiva Cuesta

 

piper-pa34
Seneca II


For 1972 Piper introduced the six/seven-seat Piper PA-34 Seneca which, basically, was a twin-engine version of the Cherokee SIX with retractable tricycle landing gear, a new fuselage structure and power provided by two 200 hp / 149kW Avco Lycoming IO-360 flat-four engines.

Early models, the Seneca I, handled awkwardly and were slower than expected and the Seneca II incorporated improvements including: turbo-charging, larger and redesigned ailerons and improved stick forces. For 1975 149kW Continental TSIO-360-E turbocharged and counter-rotating engines were introduced and the landing gear was strengthened for operation at higher gross weight, the designation then changing to PA-34-200T Seneca II.

Many Seneca I have been upgraded to Seneca II standard featuring turbo-charged engines and improvements to ailerons, rudder and the stabilator to improve handling.

In 1982 the Seneca II was superseded by an improved PA-34-220T Seneca III. A total of 28 improvements changed the II into the III, and while most of these are cosmetic, the two most significant are further increases in available power, and weight - most of which means useful load. A five minute take-off power rating increases 20 hp to 220, an rpm increase from 2575 to 2800, and an increase in MTOW of 180 lbs. This translates to a 190 lbs increase in useful load. The Seneca III has Continental TSIO-360-KB turbocharged and counter-rotating engines.

The PA-34-220T Seneca III remained in production in 1984.

 

Piper-Senec3
Seneca III

 

During 1976-77 Piper signed an agreement with the Polish foreign trade association Pezetel under which P.Z.L. Mielec will assemble/manufacture the Seneca for sale in eastern Europe. Designated in Poland as the P.Z.L. Mielec M-20 Mewa (Gull), the first Polish-built prototype was flown on 25 July 1979. The production version M-20 03 was one of the very few light-twins on the market.

 

In 1994, the "new" Piper Aircraft company introduced the Seneca IV, having acquired its license on November 17, 1993. This model is similar to the Seneca III offering small improvements such as modifying the engine hood for better cruise performance. It still continued to use the counter-rotating technique with the Continental IO-360 and Continental TSIO-360-KB engines and the maximum weights remained the same.

 

In Brazil, versions with the economical Continental IO 360 aspirated Seneca II (two-bladed propeller) and Seneca III (three-bladed propeller) were a major selling success in the 1970s and 1980s, leading to a licensing agreement between Piper and Brazilian manufacturer Embraer, on a new EMB-810 D and Cuesta designation for the same basic design. Subsequently, the manufacture of the aircraft was transferred to the subsidiary of Embraer, Indústria Aeronáutica Neiva.

 

 Embr-810-01
Neiva EMB-810D Seneca III
 
The Seneca IV was the last Piper produced under license by Embraer and that agreement terminated in 1996.
 
 Embr-810-02
PT-VSH - Neiva EMB-810D Seneca III

 

A total of 4,464 Seneca were delivered by 1 January 1991.

New Piper continued production of the Seneca V.

Certification was under FAA A7SO for:

PA-34-200
34-7250001 to 34-7250189 when kit number 760607 is installed.
34-7250190 to 34-7250214 when kit number 760611 is installed.
34-7250215 to 34-7350353
34-7450001 to 34-7450220

PA-34-200T Seneca II
All, except with kit number 764-048V or 765-110 installed.

PA-34-220T Seneca III
All, except with kit number 764-099V or 766-203 installed

PA-34-220T Seneca V
3440991 and up, except with kit number 766-632 installed or Avidyne Entegra System installed

Specifications:

PA34-200T Seneca II
Engines: 2 x Continental TSIO-360-E, 200 hp at sea level, 215 hp at 12,000 ft
Seats: 6/7
Wing loading: 22 lb/sq.ft
Pwr loading: 11.4 lb/hp
Gross wt: 4570 lb
Empty wt: 2788 lb
Equipped useful load: 1654 lb
Payload max fuel: 916 lb
Range max fuel/ 75% pwr: 864 nm/4.5 hr
Range max fuel / 55% pwr: 998 nm/ 6.1 hr
Service ceiling: 25,000 ft
Cruise 75%: 190 kts @ 20,000 ft
55% cruise: 165 kt
Vmc: 70 kt
Stall: 61-63 kt
1.3 Vso: 79 kt
ROC: 1340 fpm
SE ROC: 225 fpm @ 90 kt
SE Service ceiling: 13,400 ft
Min field length: 1568 ft
Fuel cap: 588/738 lb
Undercarriage: retractable
T/O dist (50 ft): 1240 ft
Ldg dist (50 ft): 1860 ft

PA34-220T Seneca III
Engine: 2 x Continental, TSIO-360KB & LTSIO-360KB, 220 hp @ 2800 rpm (5 min), 200 hp @ 2600 rpm continuous
TBO: 1800 hr
Prop: Hartzell 2 blade, constant speed 76 in
Seats: 6/7
Length: 28.5 ft
Height: 9.9 ft
Wingspan: 11.86 m / 39 ft 11 in
Wing area: 209 sq.ft
Wing aspect ratio: 7.4
Max ramp wt: 4773 lb
Max take off wt: 4750 lb / 2155 kg
Standard empty wt: 2875 lb
Max useful load: 1898 lb
Max landing wt: 4513 lb
Wing loading: 22 lbs/sq.ft
Power loading: 11.4 lbs/hp
Max useable fuel: 738 lb
Climb rate: 1400 fpm @ 89 kt
Climb gradient: 903 ft/nm
Rate of climb @ 8000 ft: 1275 fpm
Certificated ceiling; 25,000 ft / 7620 m
SE rate of climb: 240 fpm @ 92 kt
SE climb gradient: 157 ft/nm
SE ceiling: 12,300 ft
Max speed: 196 kt
Cruise @ 65% power @ 8,000ft: 164 kt
Cruise @ 65% pwr @ 18,000 ft: 180 kt
Fuel flow @ 65% power @ 18,000ft: 121 pph
Endurance @ 65% power @ 18,000ft: 5.8 hr
Stalling speed clean: 65 kt
Stall speed gear/flaps down: 62 kt
Turbulent air penetration speed: 140 kt
Retractable undercarriage
Cabin length: 125 in
Cabin height: 49 in
Cabin volume: 195.3 cu.ft
Fuel capacity: Std: 371 lt, Optional: 484 lt
TO dist: 920 ft
Landing dist: 1218 ft

Piper PA34 - 220T Seneca IV
Engines: 2 x Teledyne Continental TSIO / LTSIO 360 KB, 232 hp
Length: 28.576 ft / 8.71 m
Height: 9.908 ft / 3.02 m
Wingspan: 38.911 ft / 11.86 m
Wing area: 208.714 sq.ft / 19.39 sq.m
Max take off weight: 4749.6 lb / 2154.0 kg
Weight empty: 2853.3 lb / 1294.0 kg
Max. payload weight: 1920.6 lb / 871.0 kg
Max. speed: 196 kt / 363 km/h
Landing speed: 64 kt / 119 km/h
Cruising speed: 193 kt / 357 km/h
Take off distance: 1211 ft / 369 m
Landing distance: 1978 ft / 603 m
Service ceiling: 25000 ft / 7620 m
Wing loading: 22.76 lb/sq.ft / 111.0 kg/sq.m
Range: 990 nm / 1833 km
Crew: 2+4

2007 Piper PA34-220T Seneca V

Engines: Continental TSIO-360-RB, 220 hp
TBO: 1800 hr
Fuel type: 100/100LL
Propeller: Hartzell CS/2-blade
Landing gear: Tri./Retr.
Max ramp weight: 4773 lb
Gross weight: 4750 lb
Landing weight: 4513 lb
Empty weight, std: 3393 lb
Useful load, std: 1380 lb
Usable fuel, std: 122 USgal
Payload, full std. fuel: 648 lb
Wingspan: 38 ft. 10 in
Overall length: 28 ft. 7 in
Height: 9 ft. 11 in
Wing area: 208.7 sq. ft
Wing loading: 22.8 lbs./sq. ft
Power loading: 10.8 lbs./hp
Wheel size: 6.00 x 6
Seating capacity: 6
Cabin doors: 2/3
Cabin width: 49 in
Cabin height: 42 in
Cruise speed 75% power: 197 kt
Cruise speed 65% power: 190 kt
Fuel consumption 75% power: 26.4 USgph
Fuel consumption 65% power: 22.8 USgph
Cruising range: 828+  nm
Vso: 64 kt
Best rate of climb (SL): 1462 fpm
Service ceiling: 25,000 ft
Service ceiling, SE: 16,500 ft
Takeoff ground roll: 1143 ft
Takeoff over 50 ft. obstacle: 1707 ft
Landing ground roll: 1400 ft
Landing over 50 ft. obstacle: 2180 ft

PZL Mielec M 20 Mewa
Engines: 2 x Teledyne Continental TSIO 360 KB, 217 hp
Length: 28.609 ft / 8.72 m
Height: 9.908 ft / 3.02 m
Wingspan: 38.911 ft / 11.86 m
Wing area: 206.454 sq.ft / 19.18 sq.m
Max take off weight: 4564.4 lb / 2070.0 kg
Weight empty: 2910.6 lb / 1320.0 kg
Max. speed: 194 kts / 360 km/h
Landing speed: 60 kts / 112 km/h
Cruising speed: 168 kts / 311 km/h
Initial climb rate: 1496.06 ft/min / 7.60 m/s
Service ceiling: 25000 ft / 7620 m
Wing loading: 22.14 lb/sq.ft / 108.0 kg/sq.m
Maximum range: 990 nm / 1833 km
Range: 670 nm / 1240 km
Crew: 1+6

 

 


Copyright © 2019 all-aero. All Rights Reserved.
Joomla! is Free Software released under the GNU General Public License.