The 2016 Jayco Redhawk 31XL is a Class C RV with a Ford E-450 chassis and a 7.3L V8 engine, offering 325 horsepower and a 55-gallon fuel capacity. It measures 32 feet in length and has a dry weight of approximately 10,000 lbs. The RV features a 32-gallon fresh water tank and has a sleeping capacity for 8 people. 
Here's a more detailed breakdown of the 2016 Jayco Redhawk 31XL specifications:
Dimensions & Weight:
Length: 32 feet (384 inches)
Width: 8.33 feet (100 inches)
Height: 11.42 feet (137 inches)
Interior Height: 7 feet (84 inches)
Wheelbase: 18.58 feet (223 inches)
Dry Weight: Approximately 10,000 lbs
GVWR: 14,500 lbs
Sleeping Capacity: 8 
Engine & Chassis:
Chassis: Ford E-450
Engine: 7.3L V8
Horsepower: 325 hp
Fuel Capacity: 55 gallons 
Tanks:
Fresh Water Tank: 32 gallons
Grey Water Tank: 32 gallons
Black Water Tank: 40 gallons
Holding Tank: 32 gallons
Propane Tank: 10 gallons
Fuel Tank: 55 gallons 
Other Notable Features:
Slideouts: 2