Manufacturing and Marketing R/C helicopters since 1987

Optimal RPM Setup for Electric Conversion
(Determine Gears)

The tables below will help determine what gears to use with the Electric Conversion Kit ( CN1000EC ) based on the motor and battery you want to use.

 

Use the table below if all of the following apply:

  • You have a Hawk Pro, 50NX, Century .30 or .50 scale mechanics, Century .30 or .50 scale helicopter, Raven 50, Raven 30, Falcon SE v3, or Falcon SE v2.
  • You are getting the Electric Conversion Kit, CN1000EC (or it's already included in your kit).
  • You already have a motor and/or battery (or you want to use a specific motor and/or battery)
  • You are willing to change the gears (if necessary) on your helicopter to achieve your desired optimal RPM

If you do not have a motor and/or battery yet, see the Optimal RPM Setup for Electric Conversion (Determine Motor&Battery) Tables to determine what motor and/or battery is best suited to use with your Century helicopter's stock gears.

* NOTE: All calculations based on theoretical voltage of 3.7 volts per cell. Desired optimal headspeed for 2-bladed setup is between 1650-1800 RPM. Desired setup for multi-bladed setup is between 1550-1750 RPM.

Motor Battery Cells* Drive Style Counter Gear Drive Gear Output Headspeed

1470kV

(e.g. Outrunner 550+ 1470kV)		 4 Clutch

55 Tooth

(e.g. HI3040, CN2263G)

13 Tooth

( HW3045 )		 1887

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1967

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 2032
5 Direct Pinion

55 Tooth

(e.g. HI3040, CN2263G)

13 Tooth

( HW3045 )		 1725

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1792

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 1864

53 Tooth

(e.g. CN2263A, CN2263F)

14 Tooth

( HW3045A )		 1926

1300kV

(e.g. Outrunner 550+ 1300kV)		 4 Clutch

55 Tooth

(e.g. HI3040, CN2263G)

13 Tooth

( HW3045 )		 1669

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1740

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 1797

53 Tooth

(e.g. CN2263A, CN2263F)

14 Tooth

( HW3045A )		 1858
5 Direct Pinion

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 1649

53 Tooth

(e.g. CN2263A, CN2263F)

14 Tooth

( HW3045A )		 1704

1100kV

(e.g. Outrunner 600A Plus)		 5 Clutch

55 Tooth

(e.g. HI3040, CN2263G)

13 Tooth

( HW3045 )		 1765

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1840

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 1901

53 Tooth

(e.g. CN2263A, CN2263F)

14 Tooth

( HW3045A )		 1966
6 Direct Pinion

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1609

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 1674

53 Tooth

(e.g. CN2263A, CN2263F)

14 Tooth

( HW3045A )		 1730

800kV

(e.g. Outrunner 650A+ 800kV)		 6 Clutch

55 Tooth

(e.g. HI3040, CN2263G)

13 Tooth

( HW3045 )		 1540

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1606

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 1659

53 Tooth

(e.g. CN2263A, CN2263F)

14 Tooth

( HW3045A )		 1715
8 Direct Pinion

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1560

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 1623

53 Tooth

(e.g. CN2263A, CN2263F)

14 Tooth

( HW3045A )		 1677
10 Direct Pinion

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1950

565kV

(e.g. Outrunner 650A+ 565kV)		 8 Clutch

55 Tooth

(e.g. HI3040, CN2263G)

14 Tooth

( HW3045A )		 1562

53 Tooth

(e.g. CN2263A, CN2263F)

14 Tooth

( HW3045A )		 1615
10 Clutch

55 Tooth

(e.g. HI3040, CN2263G)

13 Tooth

( HW3045 )		 1813

53 Tooth

(e.g. CN2263A, CN2263F)

13 Tooth

( HW3045 )		 1890