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Great Planes Hyperflow 370 EP Ducted Fan w/Motor GPMG3911

Great Planes Hyperflow 370 EP Ducted Fan w/Motor GPMG3911
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Item #:GPMG3911

Great Planes Hyperflow 370 EP Ducted Fan w/Motor GPMG3911

This is the Great Planes HyperFlow 370 Ducted Fan Unit with Motor. For modelers 14 years of age and older. Direct fit for the Great Planes ElectriFly MiGLET and XPD-8 flying wings.


  • Great Planes Hyperflow 370 EP Ducted Fan w/Motor GPMG3911

  • High performance 370BB size Brushed motor, unit can also be adapted to use a 20mm and 24mm Brushless In-Runner motor-see COMMENTS

  • 56mm fan system replaces any system using this size fan

  • Includes additional stator vanes to straighten airflow for higher speed Brushless motors

  • Housing is precisely molded for smooth airflow and truly awesome performance


  • Housing Diameter: 2.23" (56mm)

  • Housing Length: 1.5" (38mm)

  • Total Length with Cone: 4.25" (108mm)

  • Weight, Fan System Only: 1.3oz (37g)

  • Weight w/370 Brushed Motor: 3.85oz (109g)

  • Weight w/Ammo Brushless Motor: 3.57oz (101g)

  • Motor: 370 BB Brushed

  • Intake Area: 3.50 sq in (22.6 sq cm)

  • Fan Swept Area: 2.71 sq in (17.5 sq cm)

  • Exhaust Area: 2.70 sq in (17.4 sq cm)

  • Optimum Flying Speed: 56 mph (90km/h)

  • Maximum RPM: 50,000 RPM


  • Great Planes HyperFlow 370 Ducted Fan Unit with Brushed 370BB Motor Brushless motor ring adapter


  • Electronic Speed Control and batteries, see COMMENTS

  • Threadlocking Compound (GPMR6060)

  • Phillips Screwdriver

  • 1.5mm Hex Wrench (GPMR8010)

  • Medium CA+ Glue (GPMR6008)


  • Also available without motor, GPMG3910. NOTE: If the three keys in the fan housing do not properly align with the slots in the adapter ring when installing a 20mm Brushless motor, trim away any two of the three keys using a hobby knife or a rotary tool. The one remaining key on the fan housing will fit into any of the three slots in the adapter ring. Continue with the 20mm Brushless motor installation as described in the manual.

  • Following are the ONLY recommended power systems for this fan- Brushed Power Systems: Speed 370 BB Brushed Motor (GPMG0310) ElectriFly C-25 ESC (GPMM2025) ElectriFly 3-cell 910mAh LiPo (GPMP0605) ElectriFly 3-cell 1250mAh LiPo (GPMP0609)

  • Brushless Power Systems: ElectriFly Ammo 20-40-3500 Brushless Motor (GPMG5140) ElectriFly Ammo 20-40-4040 Brushless Motor (GPMG5142) ElectriFly Ammo 24-33-4875 Brushless Motor (GPMG5170) ElectriFly Ammo 24-45-3790 Brushless Motor (GPMG5185)

  • ElectriFly SS 12A Brushless ESC (GPMM1810) ElectriFly SS 25A Brushless ESC (GPMM1820) ElectriFly SS 35A Brushless ESC (GPMM1830) ElectriFly SS 45A Brushless ESC (GPMM1840)

  • ElectriFly 2-cell 910mAh LiPo (GPMP0604) ElectriFly 3-cell 910mAh LiPo (GPMP0605) ElectriFly 2-cell 1250mAh LiPo (GPMP0608) ElectriFly 3-cell 1250mAh LiPo (GPMP0609) ElectriFly 2-cell 1500mAh LiPo (GPMP0612) ElectriFly 3-cell 1500mAh LiPo (GPMP0613) ElectriFly 2-cell 2100mAh LiPo (GPMP0616) ElectriFly 3-cell 2100mAh LiPo (GPMP0617) ElectriFly 2-cell 3200mAh LiPo (GPMP0622) ElectriFly 3-cell 3200mAh LiPo (GPMP0623)

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