During an inadvertent overspeed, which phrase may be used to establish crew communication?

• A. Let the Big Dog Run
• B. Standby
• C. Check complete
• D. All clear

Answer: (A)

During an inadvertent overspeed, clear, quick crew communication is essential so everyone understands the action being taken and can respond in a coordinated way. The phrase in question is a distinctive cue that conveys the intent to allow the overspeed condition to continue for a moment while the crew observes the airplane’s response and coordinates steps to regain proper configuration.

This particular phrase is effective because it is short, memorable, and unambiguous. It signals the crew that you’re not halting the overspeed yet, but you are acknowledging it and ready to monitor and manage the situation. Other options either describe a status without conveying any specific action, or are too generic to serve as a rapid, unambiguous cue during a time-critical event. In the context of the CTSys, this call serves as a clear, shared signal to establish communication and focus attention on handling the overspeed safely.