Golden Skies R/C Aircraft, Inc.®

Address: 30882 Rivera Place, Laguna Niguel, CA 92677
Info: (949) 378-5998
, Order: 949-378-5998 Fax: (949) 495-5170
E-mail:   Web:
All rights reserved. ©2002-2012 Golden Skies R/C Aircraft, Inc ®.

Hitec-RCD is the registered Trademark of Hitec-RCD

    Replacement Parts

Operating Voltage: 4.8 to 6.0 V DC

Rotation Speed (sec/60deg):  0.21 / 0.16 sec (4.8/6V)

Torque: (in-oz): 46 to 57  (4.8 / 6.0 V DC)

Current Drawn: 

Gear Type:  Nylon

Bearing Type: Ball Bearing

Motor Type:  3 - Pole

Angle:  + - 60 deg

Dimensions:  1.59" x 0.77" x 1.44"

Weight:  1.6 oz

Golden Skies R/C Aircraft Applications
CrossFire:  Ailerons, Elevator, Throttle
Bampf 3D Ex:  Ailerons, Elevator, Throttle

Falco F.8L:  Ailerons, Flaps, Elevator, Throttle, Retracts

What is in the Box

  •  Servo
  •  Mounting Hardware
  •  Control Horn Selection

Outline Drawing and Dimensions

A:  1.59"
B:  2.10"
C:  1.05"
D:  0.26"
E: 0.40"
F:  0.77"
G:  1.89"
H:  0.39"
I:  0.54"
J:  0.124"


The HS-425BB is the standard for small scale aircraft ("40-Size") where the aircraft weight is five (5) pounds or less.  With Dual Ball Bearings, impact resin Nylon gear’s and high performance circuitry, is is perfect for "40-Size aircraft.  The HS-425BB has been around for ever, and is one of the longest running production servos in Hitec's inventory. The HS-425BB has proven its durable and dependable over many years of use.

The torque and speed are considered "mid-range" and typical for has become to be known as a "Standard" servo; howver, one should consider the term "standard" to refer to the tyical case size of 1.59" L x 0.77" W x ~ 1.44" H

Golden Skies R/C recomments the HS-425BB only be used for Throttle control in our CrossFire, Bampf and Falco.

PN:  03060-31425S
Sale Price:  $ 14.99
In Stock
HS- 425BB
Max. Torque (@ 6VDC): 57 in-oz Max. Speed (@ 6 VDC): 0.16 s 
Prices not Guaranteed and subject to change.