1.6
Simple, inexpensive servos
This simple well built servo is exellent for use in RC planes.
I've used on several planes (even after lots of crashes!)
http://www.dealextreme.com/details.dx/sku.20023

Details for the servo:
Vendor: Mystery
Speed: 0.12 second / 60 degrees rotation
Torque: 1.3kg @ 4.8V~6V power
Comes with full ranged connectivity accessories and mounting screws