Is this servo adequate for a .60 - .90 size sport model
#1
Thread Starter
Is this servo adequate for a .60 - .90 size sport model
I am in the final stages of putting together a 65" span sport type model and was wondering if a servo with specs. of .21 sec. / 80 ozs. of torque @ 6.0 volts would be adequate for the ailerons. The model will be used for mild aerobatic sport type flying.
Last edited by karolh; 08-19-2013 at 01:29 PM.
#3
Thread Starter
Edwin thanks for your reply, but is it only the speed of the servo that dictates the speed of a roll, or is it the combination of servo speed and the amount of aileron deflection.
Karol
Karol
#5
I am using these servos and they have been great. I am not using them any where near their ratings. I have mine in a 90 sized 3D plane.
The servo speed will help a little in response time. It will get to full throw faster so the aileron is at full throw faster.
http://www.hobbypartz.com/33p-solarservo-d772.html
Buzz.
The servo speed will help a little in response time. It will get to full throw faster so the aileron is at full throw faster.
http://www.hobbypartz.com/33p-solarservo-d772.html
Buzz.
#6
Thread Starter
Buzz, the servos in question that I have are the Solar A109 analog as those you are currently using would be way over the top for my needs, plus I need some analog units to go with those I already have for the model.
Karol
Karol
#8
My Feedback: (6)
Use one of these servo torque calculators and it will tell you everything you need to know:
http://www.mnbigbirds.com/Servo%20To...0Caculator.htm
Servo speed alone, does not translate to aircraft reaction speed. Aircraft reaction speed is a function of servo torque, servo speed and surface deflection. If the servo is not strong enough to deflect the surface, the airplane will go no-where. Plus you need the torque for the servo to move at the speed you would like it to move. Using a servo torque calculator, will give you the required torque for a specific application and then the servo will move at the speed advertised.
Rafael
http://www.mnbigbirds.com/Servo%20To...0Caculator.htm
Servo speed alone, does not translate to aircraft reaction speed. Aircraft reaction speed is a function of servo torque, servo speed and surface deflection. If the servo is not strong enough to deflect the surface, the airplane will go no-where. Plus you need the torque for the servo to move at the speed you would like it to move. Using a servo torque calculator, will give you the required torque for a specific application and then the servo will move at the speed advertised.
Rafael
#9
Thread Starter
This torque calculator is really neat and an extremely useful tool to have, thanks for sharing. The results obtained from using it makes it quite obvious that we often times use servos much more powerful than what is actually needed to adequately power the control surfaces on our models.
Karol
Karol
#10
Karolh, those servos are WAY more than my needs too, but they are priced well and so I bought them.
What plane are you building? We used to use a single servo for a 65 inch pattern plane so if you use a 90 oz torque per aileron, should be way over kill. I flew my first Goldberg Super Chipmunk for many years with a single Airtronics 94102 standard servo rate at something like 45 ounces of torque powering both ailerons. Never failed me.
I have been using these servo's. They have been great. I have them in 4 planes right now. Not a problem with them. Good price too.
http://www.hobbypartz.com/kahaoubrmo14.html
Buzz.
P.S. If it is worth doing, it is worth OVER doing
What plane are you building? We used to use a single servo for a 65 inch pattern plane so if you use a 90 oz torque per aileron, should be way over kill. I flew my first Goldberg Super Chipmunk for many years with a single Airtronics 94102 standard servo rate at something like 45 ounces of torque powering both ailerons. Never failed me.
I have been using these servo's. They have been great. I have them in 4 planes right now. Not a problem with them. Good price too.
http://www.hobbypartz.com/kahaoubrmo14.html
Buzz.
P.S. If it is worth doing, it is worth OVER doing