Good economical quality servo, with spares available.
"The Hitec HS-55 continues the Hitec tradition of affordable
performance. Featuring precision components that have been engineered to provide
long lasting trouble free service. The HS-55 is the perfect choice for any micro
application from indoor R/C and hand launch gliders, to ultra small electric
Park and Yard flyers, Speed 400 and 1/2A powered aircraft"