General Aviation
Boeing 40-B-4
Manufacturer: Boeing
The Boeing Model 40 was a single‑engine biplane mail plane built in the 1920s. It carried mail and later passengers, and was widely used by U.S. airmail operators, including the company that became United Airlines.
Aircraft Facts
- Type Key
- boeing-40-b-4
- Class
- General Aviation
- Registry Count
- 1
- Example Registration
- N29708
Specifications
- Wingspan
- 13.47 m / 44 ft
- Length
- 10.12 m / 33 ft
- Height
- 3.74 m / 12 ft
- Max Speed
- 206 km/h / 128 mph
- Cruise Speed
- 169 km/h / 105 mph
- Range
- 1046 km / 565 nmi
- Ceiling
- 4420 m / 14500 ft
- First Flight
- 1925-07-20
- Total Built
- 80
Variants
- 40-B-4- 1 registrations - Example N29708
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