E-4 NOAC vs S-2 Tracker
The E-4 NOAC and the S-2 Tracker are both Military Special Mission Aircraft, manufactured by Boeing and Grumman respectively. The E-4 NOAC reaches 969 km/h — 2.2x the S-2 Tracker's 450 km/h. The E-4 NOAC has an operational range of 12,600 km vs 2,172 km for the S-2 Tracker. The E-4 NOAC operates at altitudes up to 13,716 m compared to 6,706 m for the S-2 Tracker. At 374,850 kg MTOW, the E-4 NOAC is 32:1 the S-2 Tracker's 11,860 kg. The E-4 NOAC has been produced in 4 units vs 1,284 for the S-2 Tracker. The S-2 Tracker first flew 28 years before the E-4 NOAC (1952 vs 1980).
| American advanced airborne command post, launched during the Cold War, extensively employed for national emergency operations. | |
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| Origin country | 🇺🇸 United States |
| Category | Military Special Mission Aircraft |
| Manufacturer | Boeing |
| First flight | 1 January 1980 |
| Year introduced | 1974 |
| Number produced | 4 units |
| Average unit price | $223 million |
| American carrier-based anti-submarine aircraft, deployed during the Cold War, notably used in the Vietnam and Korean Wars. | |
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| Origin country | 🇺🇸 United States |
| Category | Military Special Mission Aircraft |
| Manufacturer | Grumman |
| First flight | 4 November 1952 |
| Year introduced | 1954 |
| Number produced | 1284 units |
| Average unit price | $-- million |
| Wing area | 510.0 m² ◉ |
| Wingspan | 59.7 m ◉ |
| Height | 19.3 m ◉ |
| Length | 70.5 m ◉ |
| Maximum speed | 969 km/h ◉ |
| Operational range | 12,600 km ◉ |
| Service ceiling | 13,716 m ◉ |
| Max. takeoff weight | 374,850 kg ◉ |
| Empty weight | 190,000 kg ◉ |
| Total thrust | 4 x 23,814 kgf ◉ |
| Wing area | 45.0 m² ◉ |
| Wingspan | 22.2 m ◉ |
| Height | 5.4 m ◉ |
| Length | 13.3 m ◉ |
| Maximum speed | 450 km/h ◉ |
| Operational range | 2,172 km ◉ |
| Service ceiling | 6,706 m ◉ |
| Max. takeoff weight | 11,860 kg ◉ |
| Empty weight | 8,308 kg ◉ |
| Total thrust | 2 x 1,137 kW ◉ |
Performance Radar Chart
Frequently Asked Questions
Which is faster, the E-4 NOAC or S-2 Tracker?
The E-4 NOAC is faster with a maximum speed of 969 km/h compared to the S-2 Tracker's 450 km/h, a difference of 519 km/h.
Which has longer range, the E-4 NOAC or S-2 Tracker?
The E-4 NOAC has a longer range at 12,600 km compared to the S-2 Tracker's 2,172 km.
Which can fly higher, the E-4 NOAC or S-2 Tracker?
The E-4 NOAC has a higher service ceiling at 13,716 meters (45,000 ft) compared to the S-2 Tracker's 6,706 meters (22,001 ft).
Which is heavier, the E-4 NOAC or S-2 Tracker?
The E-4 NOAC has a higher maximum takeoff weight at 374,850 kg compared to the S-2 Tracker's 11,860 kg.
Which is larger, the E-4 NOAC or S-2 Tracker?
The E-4 NOAC is longer at 70.5 meters compared to the S-2 Tracker's 13.3 meters.
Which entered service first, the E-4 NOAC or S-2 Tracker?
The S-2 Tracker entered service first in 1954, 20 years before the E-4 NOAC which entered service in 1974.
Which has been built in greater numbers, the E-4 NOAC or S-2 Tracker?
The S-2 Tracker has been produced in greater numbers with 1,284 units compared to 4 units of the E-4 NOAC.