707 vs E-6 Mercury TACAMO
| American jet airliner from the mid-20th century, notably used in civil aviation and military transport missions worldwide. | |
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| Origin country | 🇺🇸 United States |
| Category | Military Special Mission Aircraft |
| Manufacturer | Boeing |
| First flight | 15 July 1954 |
| Year introduced | 1958 |
| Number produced | 865 units |
| Average unit price | $35 million |
| American command-and-control aircraft, operative during the Cold War era, kept primarily for communications with U.S. nuclear forces. | |
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| Origin country | 🇺🇸 United States |
| Category | Military Special Mission Aircraft |
| Manufacturer | Boeing |
| First flight | 19 February 1987 |
| Year introduced | 1989 |
| Number produced | 16 units |
| Average unit price | $141 million |
| Wingspan | 44.5 m â—‰ |
| Height | 13.0 m â—‰ |
| Length | 46.4 m â—‰ |
| Maximum speed | -- km/h |
| Operational range | -- km |
| Service ceiling | -- m |
| Max. takeoff weight | 151,318 kg â—‰ |
| Empty weight | 66,406 kg |
| Total thrust | 4 x 8,618 kgf â—‰ |
| Wingspan | 45.2 m â—‰ |
| Height | 12.9 m â—‰ |
| Length | 45.8 m â—‰ |
| Maximum speed | 966 km/h |
| Operational range | 12,000 km |
| Service ceiling | 12,192 m |
| Max. takeoff weight | 155,128 kg â—‰ |
| Empty weight | -- kg |
| Total thrust | 4 x 11,213 kgf â—‰ |