Airtronics/ Sanwa 94731Z - Contest Aircraft and Heli Servo

Specifications

Source: Most data comes from the manufacturer but some data is sourced from our loyal community.

Last Updated:	2025-08-03
Modulation:	Analog
Torque:	4.8V: 77.00 oz-in (5.54 kg-cm) 6.0V: 96.00 oz-in (6.91 kg-cm)
Speed:	4.8V: 0.17 sec/60° 6.0V: 0.14 sec/60°
Weight:	1.80 oz (51.0 g)
Dimensions:	Length:1.54 in (39.1 mm) Width:0.79 in (20.1 mm) Height:1.40 in (35.6 mm)
Motor Type:	Coreless
Gear Type:	Plastic
Rotation/Support:	Dual Bearings
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Airtronics 94731Z is a 'Contest' grade digital servo that is designed to provide the ultimate in precision and performance for competitive aircraft applications. It is an excellent choice for the aileron, elevator, and rudder controls of high-performance pattern and aerobatic aircraft, where its exceptional accuracy and holding power can make the difference between a clean maneuver and a costly mistake. The 94731Z's coreless motor provides a rapid and linear response, while the dual ball bearings on the output shaft ensure a slop-free and exceptionally smooth action. The servo's digital controller provides a high-resolution, high-frequency response that results in a locked-in and connected feel for the pilot, allowing for precise and repeatable control inputs.
The 94731Z is a true competition-grade servo that is built to win. Its robust construction and high-quality components ensure that it can withstand the rigors of competitive flying, providing a level of reliability that is essential for high-stakes events. The servo's durable gear train is designed to handle the high-stress loads of aggressive aerobatics, and its high holding power ensures that control surfaces remain exactly where they are commanded to be, even under high G-loads. For the competitive pilot who is looking for a servo that can provide the ultimate in precision and reliability, the Airtronics 94731Z is the ultimate choice.