buddy box
n.β Β«Depending on the systems used, a novice pilot can try his or her wings under the tutelage of a more experienced pilot using what is called a βbuddy box.β The studentβs control box and the instructorβs control box are linked with a cable. The linked boxes allow the training pilot to take control of the model should the student get into trouble.Β» ββE-Flyers Club executes electric model plane flight plans” by Donna Riley-Lein Daily Sun (The Villages, Florida) July 24, 2006. (source: Double-Tongued Dictionary)