Estes Der Big Red Max 316801 and HPI models or for

and HPI models or for any heavy duty application

Ferrari F50xl and Jag XRS Li

The RPM version has a larger front radius to help ease transitions up and over tall obstacles

and one in the rear

Adjustable failsafe settings

Estes Der Big Red Max 316801 and HPI models or forThis is a larger (3" diameter) model of an Estes classic, known for it's slow lift offs, it's a Pro Series kit with an Advanced Skill Level. Uses an F15 4 or E16 4 engine. Specifications: Skill Level: Pro Series II Length: 29. 9" (75. 9cm) Diameter: 3 in. (76mm) Est. Weight: 14. 5 oz. (411g) Recovery: Parachute Projected Max Altitude: 1100 ft. (335m) on a F15 4