I purchased a used 2M plane that is set up for a servo for each elevator half and a servo for each aileron. I have four fresh futaba 9101s. Are 9101s enough for the lower pattern schedules?

Thanks in advance for your opinions.

No you want something that has 70 oz of tourqe not 34 oz.
Sorry about that.
Chris

no problem in my opinion, only thing is the weights of the servos in the stab. May or may not make a tail heavy model.

I have 9202's on my ailerons in the 2M Titan, and they are great.
The 9101's I have used in the past were just as good.

1 per elevator half will be strong enough for the lower AMA schedules. Now from advanced up, I might would consider a stronger servo for the snaps and such.



Sure, their not digitals, but they are not $100 per servo either.


There are lighter and more accurate alternatives, but if you have them, and like them, then use them.

9101'S work just fine for the ailerons. 9202 on elevator OK and I would use someting with more power on the rudder though. I use a mini for the throttle. Now when you get into the higher classes you may need more power in your servo for snaps and knife edge manuvers. Precision and speed are more of an issue then absolute power in most pattern planes. I learned it wasnt nessecary to upgrade to the $100 servos till I could learn how to fly straight lines in and out of a manuver.
If you want to fly 3D or Artistic Aerobatics where extreme throws are needed, by all means get good powerfull servo's.

Wayne

I would agree that 9101's are enough provided that you use one per half. When going to a system of driving both halves with one servo then you should be up into the 60 oz in and higher range.

In an interview I saw with Christophe Paysant Le Roux at the '99 worlds in Florida, he was using one 9102 wing servo with an MK bellcrank to drive the elevator (both halves). That servo on 4.8V (which he was also using) only makes about 40 oz in torque, and he won the worlds with that That would probably be good enough for most of us

9102's are also commonly used to drive ailerons.

The 9101 is pretty similar in power to the 9102 so it will be ok.

Chad,

I have to agree there. I have used dual 9101's on the ailerons. a 9202 on the elevator(I currently use one on my new plane with the MK setup, cause thats all I had when I set it up) and a JR8411 on the rudder. Mix and match.... some day a sponsor will let me run all the same brand.... hee hee!

The 9202's do have a little more power then the 9101's
76 in oz vs 34in oz @4.8v

9101's are a high speed coreless but not much faster then the 9202's. They seemed to work fine for me. Snaps where crisp and the 8411 works wonders on a rudder manuver.

Thanks guys. Your advice has been very helpful. I think I will use my 9101s with a 6v battery. I also have a DS8411 that I plan to use for the rudder.

I'd go with 9101's on aileron. I'm using those on my Zen's ailerons and they work very well. You ought to consider HiTec 5625's for elevator. They have alot of torque and are fairly fast if used on a 6 V system. Also, price wise, they're not that much more than 9101's.

The HiTec 5925 is awesome on rudder. It is extremely fast and does a great job making the plane snap.


Rob