ORIGINAL: mesaflyer
Hello,
//SNIP//
Will be using a Saito 82 and building the tail dragger version. I read on the Tower site that the Tiger requires 45-50 oz torque servos. Can I use Futaba S3004 (44.3 oz with 4.8v) servos? Or, should I use 6v battery (56.8 oz)? Or should I just use 3010 (72 oz) servos? I prefer to use the 4.8v batteries. Seems like 44.3 oz would be ok, but figured somebody out there would have the experience. Couldn't find any servo torque info in the (on-line) manual.
Thanks for your help,
Pete
Those servos will do fine. I suggest you use two on the ailerons,one on each aileron, then one each on throttle and rudder. Then for the elevator I would pick a regular servo of 60 Oz. or about such.
The 4 cell batt will work well, however I suggest you use one of at least 1000 mah. If you use less, then maybe an 800 mah at minimum but be ready to charge after 45 minutes air time. Way back when we all used 5-600 mah nicads, and I pushed the envelope, I had to do more building. Now I use big batteries with an engine that can carry the weight as you plan to do, so I get more flying time.
If you feel the need for a digital servo, remember it idles at the current draw that most standards use for work.
Just a tip, when buying servos, don't overlook HiTech. Good things come in those packages.
Merry Christmas and good luck with your project.