Boeing 247
Technical Specations
| First Flight: |
February 8, 1933 |
| Number Built: |
75 for commercial service |
| Length: |
51 feet 7 inches |
| Wing Span: |
74 feet |
| Height: |
16 feet 5 inches |
| Max Take-Off Wt.: |
13,650 lbs. |
| Max Landing Wt.: |
N/A |
| Empty Wt.: |
8,975 lbs. |
| Max Cruising Speed: |
200 mph 174 kts |
| Normal Cruising Speed: |
189 mph 164 kts |
| Stall Speed: |
N/A |
| Service Ceiling: |
25,400 feet |
| Fuel Capacity: |
273 US gallons |
| Range: |
750 miles |
| Fuel Type: |
91/96 octane |
| Fuel Consumption: |
69 gph both flight plan burn |
| Engines: |
2 Pratt & Whitney R-1340 S1H1Wasp engines
rated @ 550 HP each |
| Seating: |
10 Passengers + 400 lbs. cargo |
| Crew: |
2 Pilots |
Engine Specifications
Pratt & Whitney R-1340 S1H1 Wasp |
| Type: |
7 cylinder air cooled radial |
| Length: |
48.12 inches |
| Diameter: |
50.45 inches |
| Bore: |
5.75 inches |
| Stroke: |
5.75 inches |
| Displacement: |
1340 cubic inches |
| Compression Ratio: |
6.2 to 1 |
| Dry Weight: |
1050 lbs. |
| Ignition: |
Bosch S7LU-3 |
| Fuel Grade: |
91/96 octane |
| Carburation: |
Bendix PD9F1 |
| Performance: |
550 HP, @ 1950 rpm @ 8000 ft |
|