Don’t buy garbage servos. You will undoubtedly progress to advance airplanes and need good servos (btw as others have stated the extra is an advance flying aircraft.) If you are new to this you should be looking at a midstar or 4 star to learn on. With a simulator like the Real Flight it is very possible to go from a midstar to an extra in 3 or 4 months. (This really depends on how much you are willing to fly…) We have members in our club who have done it. In fact it is actually a smart way to go. Skip the bad habit planes like the sse and twist, jump to a good stable plane that flies like an arrow.

With servos you want to pay attention to strength (torque) speed, gearing (metal, karbon nylon) With a 60 size plane 60-80 in oz of torque is good. Speed around .15 to .17 is good. Faster servos make the plane more responsive. 15-17 is not fast. If you want to see fast check out a .08 servo. The general need for a fast servo is on 3d aircraft where the surfaces are moving very quickly. The Goldberg Extra doesn’t need speed and you won’t be 3ding for at least 4 years.


With hitec there are digital and analog. If you are certain you will be flying large scale gas then digitals are the way to go. The 5625 ($50ish) is a generally good fast strong servo that can be used on planes up to 27% with 6v. 35% aircraft need more omf like a 7955 ($100ish). You should buy your servos with the next plane or 2 in mind. Some people look at this as overkill I see it as an investment… With my 2, 27% aircraft I use 5985 ($80ish each) all around. My current Goldberg 60 size Ultimate I have 985 on the ailerons and rudder and 625 on the elevator, I will be switching out the 625 for 985 when I can afford it. I like the precision of them. I also like a good strong rudder…

If you get digitals get some decent batteries as they suck the power! Make sure your battery can handle a constant 1 amp draw. This is a good idea with either analog or digital…

With analog, the boiled down choices, 625 faster-weaker, 645 slower-stronger (cheaper cored motors) & 965 faster-weaker, 985 slower-stronger (more expensive coreless motors.) They are all ball bearing and are metal geared. They work great in a direct pull-pull. If you are not experienced you won’t notice the difference between a 625 and a 985. For the Goldberg extra the 625 would be great on all surfaces on 4.8v plus they are about $30 each, the 985, 965 are about $70 each but are very smooth very precise. If you were to be doing precision pattern or imac flying then the coreless is the way to go but for general hucking on a 60 size plane the 625 is a good cheap choice.

Hope this helps.