Today let’s talk about the GDW DS190X servo which is designed for RC fixed wing gliders.
Firstly, let’s see the motor type. DS190X is installed with a Coreless motor (10*20mm). The specialty of Coreless Motors lies in its dependability and excessive power. The coreless motor offers a faster response time, and a more efficient, smoother operation. It can also change voltages quickly which causes an RC servo to alter courses quickly. This makes it the perfect servo for high-speed racing and maneuvering.
Then let’s take a look on the voltage, speed and related torque parameters:
8.5Kg.cm/0.11sec/60°@6.0V
10Kg.cm/0.09sec/60°@7.4V
11.5Kg.cm/0.08sec/60°@8.4V
Two figures are typically stated by manufacturers and distributors of hobby RC servos: angular speed of servo shaft rotation and mechanical torque produced on the shaft. Speed is expressed as a time interval that a servo requires to rotate the shaft at a 60° angle. Torque is expressed as weight that can be pulled up by the servo if it hangs from a pulley with a certain radius mounted on the shaft. For example, this GDW DS190X servo model is described as “0.08 s / 11.5 kg-cm”, or “0.08s / 159.6 oz – in”, which should be interpreted as “This servo rotates the shaft for 60° in 0.08 seconds, and it can pull up 11.5 kg weight using a 1 cm radius pulley”. DS190X has a strong force.
The gearbox is made of steel, with a titanium surface treatment. This steel gear is durable and can withstand the torture of fast-paced flight conditions. The aluminum metal case helps dissipate the heat and protect internal parts well.
The horn gear spline with 25T 4.9mm standard size, wide compatibility, it compatibles with most of the other brands. Believe it or not, horn compatibility is a big turn-on for servo buyers. If they can just change a dead servo without changing the linkages as well, they think that’s a big plus.
Generally, GDW DS190X is an excellent digital servo for RC fixed wing gliders.