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KC-135 Stratotanker vs P-2 Neptune

KC-135 Stratotanker vs P-2 Neptune at a glance — top speed 933 vs 584 km/h, range 2,400 vs 3,471 km, max takeoff weight 146,283 vs 36,240 kg, built 803 vs 1,177 units.

Lockheed P-2 Neptune military special mission aircraft side profile drawing
🇺🇸 P-2 Neptune
Specifications
KC-135 Stratotanker P-2 Neptune
Origin country 🇺🇸 United States 🇺🇸 United States
Category Military Special Mission Aircraft Military Special Mission Aircraft
Manufacturer Boeing Lockheed
First flight 31 August 1956 17 May 1945
Year introduced 1957 1947
Number produced 803 units 1177 units
Average unit price $39 million --
Wing area 226.0 m² 92.9 m²
Wingspan 39.9 m 31.7 m
Height 12.7 m 8.9 m
Length 41.5 m 27.9 m
Maximum speed 933 km/h 584 km/h
Operational range 2,400 km 3,471 km
Service ceiling 15,240 m 6,828 m
Max. takeoff weight 146,283 kg 36,240 kg
Empty weight 44,663 kg 22,650 kg
Total thrust 4 x 9,813 kgf 2 x 2,759 kW
Performance Radar Chart
Change comparison vs

Frequently Asked Questions

Which is faster, the KC-135 Stratotanker or P-2 Neptune?
The KC-135 Stratotanker is faster with a maximum speed of 933 km/h compared to the P-2 Neptune's 584 km/h, a difference of 349 km/h.
Which has longer range, the KC-135 Stratotanker or P-2 Neptune?
The P-2 Neptune has a longer range at 3,471 km compared to the KC-135 Stratotanker's 2,400 km.
Which can fly higher, the KC-135 Stratotanker or P-2 Neptune?
The KC-135 Stratotanker has a higher service ceiling at 15,240 meters (50,000 ft) compared to the P-2 Neptune's 6,828 meters (22,401 ft).
Which is heavier, the KC-135 Stratotanker or P-2 Neptune?
The KC-135 Stratotanker has a higher maximum takeoff weight at 146,283 kg compared to the P-2 Neptune's 36,240 kg.
Which is larger, the KC-135 Stratotanker or P-2 Neptune?
The KC-135 Stratotanker is longer at 41.5 meters compared to the P-2 Neptune's 27.9 meters.
Which entered service first, the KC-135 Stratotanker or P-2 Neptune?
The P-2 Neptune entered service first in 1947, 10 years before the KC-135 Stratotanker which entered service in 1957.
Which has been built in greater numbers, the KC-135 Stratotanker or P-2 Neptune?
The P-2 Neptune has been produced in greater numbers with 1,177 units compared to 803 units of the KC-135 Stratotanker.