CFR › Title 14 › Part 25 › §25.77914 CFR §25.779Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkCockpit controls must be designed so that they operate in accordance with the following movement and actuation:(a)Aerodynamic controls:(1)Primary.(2)Secondary.(b)Powerplant and auxiliary controls:(1)Powerplant.(2)Auxiliary.