So what is the performance advantage of say a 100in/oz digital over a 100in/oz analog all mechanical things within the servo being equal..

Learning something here.[8D]

With the right TX, Accuracy and repeatability?

My best GUESS is that the advantage is that the digital will put the FULL power to the servo for even the smallest output move. Whether that be to actually change the position or maintain the previous position. An analog that only wants to move a short distance (or maintain position) will only apply a partial voltage to the motor. That voltage will increase as the servo is forced out of the desired position.

Both have the same "absolute" amount of torque available, it's a matter of how quickly you can bring it into action. I GUESS in the analog situation it's like a "worst case scenario". Since the analog is only generating this torque "on demand" and the digital is always at high torque, I think you can see where some of the extra current drain comes from.

read the futaba tech info it's all there in black and white and since they make them they should know

My reading comprehension can only be as good as your spelling. I took the meaning exactly as I read it. I realize there are many words in the Engli......... Ah, heck with it, you're not worth the effort!

as mentioned... the Digi is at full torque at every step.. meaning that at 1 degree or 60 degrees swing you get full torque... with analog... the servo needs to turn a bit before it has its full torque....

and the centering is the other thing.....

Having now read how Futaba does their servos I realize they do NOT ramp their voltages but use a different pulse frequency and width to the motor. The result is the same however.

So it's safe to say that for pure accurate control Digital wins hands down over Analog
If you need them or not is something you need to decide for yourself
If your type of flying needs good tight control then get them if your happy with the way your plane flys with Analog don't

MAN LAW??????

Only if you have a high resolution 2048 type TX to go with them.

There was another great thread on this stuff where it was found that using digital servos with a regular TX does not produce any increase in accuracy, because the TX's resolution.

The synopsis... even 1024 resolutions TX's do not cut it...

Sheesh, some people are just never happy.

Do we have to be?

But there is a valid point to be made...

Unless you have a high quality TX, the digital servos aren't buying you much if anything...not even accuracy.

I made the mistake of buying a bunch of good digitals for my my Funtana 90S as the instructions called for them...

Then I read here that my computer 7 channel TX did not have enough resolution to make the digital servos worth it.

I could have save a bundle and gone with high torque standard servos instead.

I even tried a set of cheap High Torque MG Tower Pro servos (14.00/ea) on another plane and I am getting similiar performance to the expensive digitals.

Of course your mileage may vary, and I'm no IMAC flyer.

lol he spelled it right, you read it wrong, and he's still the one who screwed up? God, I love the internet. Coulda just admitted you were wrong and move on.

ok what radios have the 1024 and which have 2048?

I see it's those high dollar 12 and 14 channel tx

so does that mean the guys that have a 1000 bucks in digital servos using a 9 channel are not getting any advantage over analog servos ?
I'm confused now

You still get the advantage of nearly instant full torque and they should center the same every time.

Everyone I know with a larger chopper that goes to digitals over comparable analogs says it feels like a different heli.

Like he said...

Though for many sports fliers (like myself) the digitals are overkill... which is why I'm kicking myself about buying them... I should have waited until I upgrade my TX's first.

Ok I agree with over kill in some cases I fly mainly 40-60 size stuff and can't say I have had any problems I thought would be fixed with digital
I have ds811's on a raptor I don't fly right now I might stick them in my magic 3d and see if I feel a difference
from what I have just been reading on the 2048 tx they let the servos repond faster to stick movements so I would think that your still getting better performance over analog
but the 2048 would give faster stick input to them my radio is faster then I am right now so I'll wait on that

You can also buy faster analog or digital servos or simply run them at a higher voltage to get more speed and torque. Lots of variables and options available to all of us.

I only run digitals. Better centering, better holding, more accurate response. I also try to use coreless except for throttle where it's not as critical.

Bob

I just don't want to by a elephant gun to go rabbit hunting

But you CAN'T MISS this way!

Actually you can miss. Elephant guns (when shooting elephants anyway) fire slugs and not shot shells. Real easy to miss an uncooperative rabbit like Bugs.

Yes you're right... I had visions of scatter shot on the brain... dunno why...

Now when you DO hit the rabbit, what will you have left?

A rabbits foot!!!!! If your lucky!!!!

Ken

That's the best laugh i've had all week! Isn't that the truth though? I always wondered why my planes fly just as well as others and all I use are standard servos. Sure is fun to be bored with the cheap servos.

That's about like the guy that hauls in his $5,000 37%er in a fancy trailer and once he gets it airborne all he does is fly in circles. What a joke!

Actually I think it's the guy behind the servo rather than what servo is behind the guy.

Some RC equipment is about like golf clubs. The guy buys the most expensive clubs on the market only to find he can't hit the ball any better than he did with the cheap ones.