Republic XF-84H "Thunderscreech" vs Boeing Bird of Prey (YF-118G)
Top speed, range, size and history side by side. Each was built for its own job, so this shows how they differ, not which is better.
The Republic XF-84H "Thunderscreech" is faster: 837 km/h against 480 km/h for the Boeing Bird of Prey (YF-118G). The Republic XF-84H "Thunderscreech" flies further: 2,000 km against 600 km for the Boeing Bird of Prey (YF-118G). The Republic XF-84H "Thunderscreech" has the wider wingspan: 10.2 m against 6.9 m for the Boeing Bird of Prey (YF-118G). The Republic XF-84H "Thunderscreech" is heavier at takeoff: 8 tonnes against 3.4 tonnes for the Boeing Bird of Prey (YF-118G). The Republic XF-84H "Thunderscreech" first flew in 1955, 41 years before the Boeing Bird of Prey (YF-118G) (1996).
| Republic XF-84H "Thunderscreech" | Boeing Bird of Prey (YF-118G) |
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| Top speed | 837 km/h (520 mph) | 480 km/h (298 mph) |
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| Range | 2,000 km (1,243 miles) | 600 km (373 miles) |
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| Length | 15.7 m (51 ft) | 14.2 m (47 ft) |
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| Wingspan | 10.2 m (33 ft) | 6.9 m (23 ft) |
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| Max takeoff weight | 8 t (17,637 lb) | 3.4 t (7,496 lb) |
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| First flight | 1955 | 1996 |
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| Crew and capacity | 1 pilot | 1 pilot |
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| Engines | 1 × Allison XT40 turboprop | 1 × Pratt & Whitney Canada JT15D-5C turbofan |
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| Built by | Republic | Boeing |
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| Country | USA | USA |
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