What do you guys charge to do 100's, annuals, and repair work in the south. I know it seems to vary alot from airport to airport. Do you charge by the hour or have a set fee for an annual with a hourly price to make any repairs, ect..... I just got a job where I am free to do outside maint. and would like to start doing some annuals on just some small general aviation planes mostly singles with the odd twin thrown in.