I'm building an outrigger hydro airboat and will need to get servos. I called around a little bit and was recommended Blue Bird servos. The high torque standard servo has 144oz. in. torque and .13 second transit time (6.0v) for $15 each or 4 for $45. They have a 2 year warranty.

Otherwise I was going to use the old failsafe Hitec HS-645MG for $32 for steering. This one is 133oz in. torque something like .20 sec. transit time.

This boat is expected to be faster than 35-40mph, so servo failure is not an option.. Are there more reliable servos to use?

It's hard to beat the 645MG, it's been around a long time and turns boats a lot heavier and faster than yours. I just don't trust a $15 servo, I know nothing about the Blue Bird brand other than that they are cheap and their warranty is limited.



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i like running the hitec 645 mg in all my boats for the simple reason i have NEVER had one fail also run them in all my 1/8 scale monster trucks without any problems so i use them im shure there are better servo s out there but it gives me pice of mind

This is what I was kind-of thinking.. I also thought about trying the blue birds, but use them in my cars for steering. I have two 1/8th scale Losi MT's that use dual steering servos.. I have 2 645MG's in one of them and I just love 'em.

Stick with what you know and trust. I've been using the 645's for steering duty in everything from .21 nitro to my gas boats and they all do well over 35-40 MPH.