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T-37 Tweet vs TS-8 Bies

T-37 Tweet vs TS-8 Bies at a glance — top speed 684 vs 312 km/h, range 1,500 vs 800 km, max takeoff weight 2,980 vs 1,600 kg, built 1,269 vs 251 units.

Cessna T-37 Tweet military training aircraft side profile drawing
🇺🇸 T-37 Tweet
PZL Mielec TS-8 Bies military training aircraft side profile drawing
🇵🇱 TS-8 Bies
Specifications
T-37 Tweet TS-8 Bies
Origin country 🇺🇸 United States 🇵🇱 Poland
Category Military Training Aircraft Military Training Aircraft
Manufacturer Cessna PZL Mielec
First flight 12 October 1954 23 July 1955
Year introduced 1957 1957
Number produced 1269 units 251 units
Average unit price -- --
Wing area 17.0 m² 19.1 m²
Wingspan 10.1 m 10.5 m
Height 2.8 m 3.0 m
Length 9.0 m 8.5 m
Maximum speed 684 km/h 312 km/h
Operational range 1,500 km 800 km
Service ceiling 11,948 m 6,000 m
Max. takeoff weight 2,980 kg 1,600 kg
Empty weight 1,840 kg 1,070 kg
Total thrust 2 x 465 kgf 1 x 240 kW
Performance Radar Chart
Change comparison vs
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Frequently Asked Questions

Which is faster, the T-37 Tweet or TS-8 Bies?
The T-37 Tweet is faster with a maximum speed of 684 km/h compared to the TS-8 Bies's 312 km/h, a difference of 372 km/h.
Which has longer range, the T-37 Tweet or TS-8 Bies?
The T-37 Tweet has a longer range at 1,500 km compared to the TS-8 Bies's 800 km.
Which can fly higher, the T-37 Tweet or TS-8 Bies?
The T-37 Tweet has a higher service ceiling at 11,948 meters (39,199 ft) compared to the TS-8 Bies's 6,000 meters (19,685 ft).
Which is heavier, the T-37 Tweet or TS-8 Bies?
The T-37 Tweet has a higher maximum takeoff weight at 2,980 kg compared to the TS-8 Bies's 1,600 kg.
Which is larger, the T-37 Tweet or TS-8 Bies?
The T-37 Tweet is longer at 9.0 meters compared to the TS-8 Bies's 8.5 meters.
Which entered service first, the T-37 Tweet or TS-8 Bies?
Both the T-37 Tweet and TS-8 Bies entered service in the same year: 1957.
Which has been built in greater numbers, the T-37 Tweet or TS-8 Bies?
The T-37 Tweet has been produced in greater numbers with 1,269 units compared to 251 units of the TS-8 Bies.