This is a S-600 7.2-8.4 Volt Ferrite Motor from Great Planes.
                     (former Goldfire Motor 05 (550)
          This motor is designed for electric powered R/C airplanes.
       (Depending on application, it can be used on R/C boats and cars.)

FEATURES: Made with ferrite magnets.

INCLUDES: One S-600 7.2-8.4 Volt Ferrite Motor
          One 0.01 uF ceramic capacitor
          One Instruction Sheet

REQUIRES: Mounting with 3mm machine screws

SPECS:    Windings:    19 turns of .80mm wire.
          Timing:      + 3 degrees
          Resistance:  .37 ohms
          Max RPM:     19,800
          No Load RPM: 19,140 RPM at 7.2V - 2.06 amp
                       21,960 RPM at 8.4V - 2.19 amp
          RPM/Volt:    2,658 RPM/Volt at 7.2 volts
                       2,614 RPM/Volt at 8.4 volts
          Shaft Diameter:    3.17mm (.126")
          Free Shaft Length: 10.2mm (.408")
          Case Diameter: 37.0mm (1.48") w/flux ring    35.5mm (1.42") w/o ring
          Case Length:   56.8mm (2.27")
          550 size can
          Weight:        215g (7.5 oz)
          Bronze bushings
          Closed endbell
          Epoxied balanced rotor
          Flux ring for increased power

          Performance specs while turning an 8 x 4 propeller:
            6-cell 7.2 volt battery           7-cell 8.4 volt battery
            RPM:    10,000-10,500             RPM:    10,800-10,500
            Amps:   20                        Amps:   22-23
            Watts:  140                       Watts:  165
            Thrust: 17-18 oz                  Thrust: 19-21 oz
            Shaft length: 10.3mm (.408")                     JAL 6/21/00
                                                                          ir/jl