Lockheed L-188
Technical Specifications

First Flight: December 12, 1957
Number Built: 222 for Commercial & Military service 
Length: 116 feet 10 inches
Wing Span: 99 feet 8 inches
Height: 33 feet 8 inches
Max Take-Off Wt.: 113,000 lbs.
Max Landing Wt.: N/A
Empty Wt.: 61,491 lbs.
Max Cruising Speed: 448 mph   389 kts 
Normal Cruising Speed: 373 mph   324 kts
Stall Speed: N/A
Service Ceiling: 28,400 feet
Fuel Capacity: 5520 US gallons 
Range: 2200 miles
Fuel Type: Jet A
Fuel Consumption: 935 gph 4 engines flight plan burn
Engines: 4 Allison 501-D13D rated @ 3750 eshp each 
Seating: 99 to 127 Passengers
Crew: 2 Pilots 1 Flight Engineer and 3 Flight Attendents

Engine Specifications

 Allison 501-D13

Type: Axial-flow prop-jet
Diameter: 27 inches
Length: 145 inches
Compressor Stages: 14
Turbine Stages: 4
Weight: 1750 lbs.
Starter: Air-frame furnished
Fuel Grade: Jet A
Estimated Shaft Horse Power: 3750 @ 13,820 rpm