wing servo for f-14
 

If you think back to when that airplane was designed and even being converted for turbine use the thin servos would have been the JR3421's and DS168 servos. Well under the mks you are talking about. I'd think your mks servos are more than adequate.

I'm not personally familiar with the jet honestly. It was the same size as the jetmart F14 and close I believe to the yellow aircraft F14. Are spoilers part of the design on that kit or are you just adding them?

we tend to way over power our surfaces but more power is better than not enough. I am just assuming really that one servo would be enough per spoiler but if it makes you feel better, or if the spoiler flexes with only one linkage connection then put 2 on it. When that jet first came out for ducted fan some of the most powerful servos you could get were only around 150oz. Your stab servos for example that you are using are probably 3x more power than necessary. Use them as it will definitely give you peace of mind but we tend to think we need far more power than we really do. How big are the spoilers and how much deflection do they have?

at that size I suspect you will be more than fine with a single servo at the 144oz you are talking about. That's about the same size as the aileron on my cai raptor and those are only 148oz servos on a 250mph jet. Never an issue.

I would think so, but remember, I have never had this jet so it's just opinion. I look at a jet like my BVM Kingcat, it will do well over 200mph, it has massive flaps, and the servo's again are just the old JR 2721s at 148oz of torque. They have more than enough power to hold them in the up position and flaps are not deployed at high speed. If I hit flaps on that jet at 200mph it would destroy the servo's and probably shear the flaps off the airplane if not destroy the wing, so your servo power is definitely related to it's use. The flaps on the kingcat have far more surface area than the elevators, yet require less torque because they aren't being used at high speed. Take a look at what the Skymaster F14 is using for servo's on those same surfaces. That jet is significantly larger than the Avonds so if you look at those servo's and are anywhere near the power of what they recommend you will have well more than enough.

Personally, on the Avonds F14, at the size it is, I would be more concerned about the added weight that adding all of those things will bring to the airplane than the torque of what servo's are needed. I would personally be keeping it simple with elevons like it was designed and not worry about slats and spoilers etc.