APC LP04141E 4.1X4.1 Electric propeller

 This is a 4.1x4.1 Speed 400 Electric Propeller
                      from Advanced Precision Composites.
     For use on Electric powered aircraft only, not for glow powered engines.

FEATURES: Constructed of Gray composite material
          For Speed 400 motor applications
          Two adapter rings that adapt to different motor shafts

INCLUDES: 4.1x4.1 Speed 400 Electric Propeller, two adapter rings and
            instruction sheet

SPECS:    Diameter: 4.1"
          Pitch:    4.1
          Hub inner diameter:  (8mm) where rings are installed
          Inner Diameter of Rings: 3/16" (4.9mm) and  1/4" (6mm)