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DHC-7 Dash 7 vs PA-34 Seneca

DHC-7 Dash 7 vs PA-34 Seneca at a glance — top speed 451 vs 378 km/h, range 1,280 vs 1,611 km, max takeoff weight 19,958 vs 2,155 kg, built 113 vs 5,037 units.

De Havilland Canada DHC-7 Dash 7 military transport aircraft side profile drawing
🇨🇦 DHC-7 Dash 7
Piper PA-34 Seneca military transport aircraft side profile drawing
🇺🇸 PA-34 Seneca
Specifications
DHC-7 Dash 7 PA-34 Seneca
Origin country 🇨🇦 Canada 🇺🇸 United States
Category Military Transport Aircraft Military Transport Aircraft
Manufacturer De Havilland Canada Piper
First flight 27 March 1975 25 April 1967
Year introduced 1978 1971
Number produced 113 units 5037 units
Average unit price $15 million --
Wing area 80.0 m² 19.4 m²
Wingspan 28.0 m 11.9 m
Height 8.0 m 3.0 m
Length 23.6 m 8.7 m
Maximum speed 451 km/h 378 km/h
Operational range 1,280 km 1,611 km
Service ceiling 6,401 m 7,620 m
Max. takeoff weight 19,958 kg 2,155 kg
Empty weight 12,542 kg 1,457 kg
Total thrust 4 x 835 kW 2 x 164 kW
Performance Radar Chart
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Frequently Asked Questions

Which is faster, the DHC-7 Dash 7 or PA-34 Seneca?
The DHC-7 Dash 7 is faster with a maximum speed of 451 km/h compared to the PA-34 Seneca's 378 km/h, a difference of 73 km/h.
Which has longer range, the DHC-7 Dash 7 or PA-34 Seneca?
The PA-34 Seneca has a longer range at 1,611 km compared to the DHC-7 Dash 7's 1,280 km.
Which can fly higher, the DHC-7 Dash 7 or PA-34 Seneca?
The PA-34 Seneca has a higher service ceiling at 7,620 meters (25,000 ft) compared to the DHC-7 Dash 7's 6,401 meters (21,000 ft).
Which is heavier, the DHC-7 Dash 7 or PA-34 Seneca?
The DHC-7 Dash 7 has a higher maximum takeoff weight at 19,958 kg compared to the PA-34 Seneca's 2,155 kg.
Which is larger, the DHC-7 Dash 7 or PA-34 Seneca?
The DHC-7 Dash 7 is longer at 23.6 meters compared to the PA-34 Seneca's 8.7 meters.
Which entered service first, the DHC-7 Dash 7 or PA-34 Seneca?
The PA-34 Seneca entered service first in 1971, 7 years before the DHC-7 Dash 7 which entered service in 1978.
Which has been built in greater numbers, the DHC-7 Dash 7 or PA-34 Seneca?
The PA-34 Seneca has been produced in greater numbers with 5,037 units compared to 113 units of the DHC-7 Dash 7.