mistrim

mis- +‎ trim

mistrim (third-person singular simple present mistrims, present participle mistrimming, simple past and past participle mistrimmed)

1. (transitive) To trim badly or wrongly.
   • 1972 April, Ed Ross, “Transports in Turbulence”, in The MAC Flyer, volume 19, number 4, page 8:

     Watch the pitch trim and be ready to punch off the autopilot if it starts to mistrim the aircraft.

   • 1975, Yacht Racing - Volume 14, page 47:

     you mistrim the sail and you have a bad case of the slows.

   • 1975, NASA Contractor Report - Issues 2499-2503, page 99:

     Additionally, it is possible for the pilot to mistrim the system so the parallel actuator is working against a steady load and hence will have a lower stall limit in one direction .

mistrim (countable and uncountable, plural mistrims)

1. The act or an instance of mistrimming.
   • 1967, United States. Bureau of Naval Personnel, Aviation Electrician's Mate 1 & C, page 304:

     This removes the possibility of a disengage transient due to mistrim when the attitude hold mode is disengaged.

   • 1987, Robert Samuel Ryan, Harold N. Scofield, Structural Dynamics and Control Interaction of Flexible Structures, page 916:

     Steady state error due to mistrim moment can be integrated out.

   • 2017, Peter G. Hamel, In-Flight Simulators and Fly-by-Wire/Light Demonstrators, page 161:

     The auto-trim system was shut down automatically, if the mistrim exceeded a pre-defined duration.