subtleguru

Both of these servos are adequate for my plane but they have different specs.
Given that my servos generally outlast my planes and I don't know where they will be used next which would you choose?


3152 (Digital)
SPECS:
Speed: .22 sec/60° @ 4.8V, .18 sec/60° @ 6V
Torque: 69 oz-in @ 4.8V, 87 oz-in @ 6V
Weight: 1.5oz (42g)


3010 (Analogue)

SPECS:
Speed: .20 sec/60° @ 4.8V and .16 sec/60° @ 6.0V
Torque: 72 oz-in @ 4.8V and 90 oz-in @ 6V (5.2 kg-cm @ 4.8V and 6.5 kg-cm @ 6V)
Weight: 1.4oz (41g)


The trade off is faster and more torque analogue vs digitial. The digitial is slightly cheaper currently.

Jetdesign

My Feedback: (8)

Digital servos do a better job at centering and holding a certain position. When you give a digital servo an input, it uses full current draw to reach it's goal. The advantage is a more accurate servo, the disadvantage is greater power consumption and thus shorter flight times. Digital servos make a pulsating 'hum' at the neutral position. The reason is that if they sense a correction is needed, even the slightest amount, they will use bursts of full energy to make that adjustment. An analog servo will use an amount of energy proportional to the amount of travel it needs to execute. "A digital servo uses all of it's 'holding power' for any position".

Digital: on or off - either using 100% of possible current draw, or none.
Analog: linear - a linear relationship between the input and the current draw.

Personally I would buy the digital ones, but I'm into precision. Once I tried digital servos I became hooked. I have a few analogs left in plane I don't care much about, and for one of my throttle servos. If you are just into sport flying and not worried about precision or competing you will be fine with analogs.

dignlivn

I'm currently building a Astro Hog and using the 3010 s
for everything except the throttle. The reason is less
power draw vs the digital servos. JMO


Bob

NCFlash

Would mixing be a problem? I have 2 3010s available for rudder and elevator but I also have two 3151 I'd like to use on the ailerons for a TF 60 size Spit. I was planning to use a 6 volt, 2000mAh.
Appreciate any ideas.
Flash

carrellh

It is not a problem.