Power HD HD-2550A - Standard Servo

Specifications

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

Last Updated:	2025-08-11
Modulation:	Analog
Torque:	4.8V: 125.00 oz-in (9.00 kg-cm)
Speed:	4.8V: 0.20 sec/60°
Weight:	1.89 oz (53.7 g)
Dimensions:	Length:1.57 in (39.9 mm) Width:0.79 in (20.1 mm) Height:1.69 in (42.9 mm)
Motor Type:	(add)
Gear Type:	Plastic
Rotation/Support:	(add)
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	JR

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The Power HD HD-2550A is a compact and efficient analog servo that sits in the thin wing" category. It is specifically designed for installation in the slender wings of sailplanes and gliders where a standard-sized servo would be too thick and create unacceptable aerodynamic drag. The HD-2550A provides a good balance of power and low weight making it ideal for actuating the ailerons and flaps on a wide variety of thermal and slope soaring gliders. Its slim profile allows it to be mounted internally preserving the clean efficient lines of the airfoil and maximizing the aircraft's performance. The key characteristic of the HD-2550A is its specialized form factor. For the soaring pilot maintaining a smooth and efficient wing is paramount. This servo enables a clean professional installation that is both lightweight and aerodynamically efficient.
For roboticists and custom builders the HD-2550A's slim profile is a unique asset. It is an excellent solution for any project that requires an actuator to be placed in a narrow or confined space such as the articulated fingers of a slim robotic hand."