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HistoryCentral · Primary Source & History

US Pre War Aircraft

Boeing XF B4

The History

Boeing XF B4

XP4

Manufacturer: Boeing Aircraft

First Flight: 7/27/1927

Type: Altitude Tester Fighter

Power Plant: Packard 1A-500 Super Charged

Wingspan: 32ft

Length: 23ft 11inch

Ceiling: 22,850

Range: 622mi

Max Speed: 169MPH

Weight: 2,450lbs (gross)