Final answer:
The proper action to a passing of three blasts of a whistle during rendering honors to another navy vessel relies on the naval protocol and what the specific whistle signals represent in your navy's traditions. Without context, it's impossible to provide a definitive action.
Step-by-step explanation:
When rendering honors to another navy vessel, if you hear a passing of three blasts of a whistle, the action you should take will depend on naval protocol regarding whistle signals and ceremonial honors. However, without specific context or a defined meaning for three whistle blasts in your navy's procedures, it is not possible to determine the exact action you should take.
Typically, whistle signals are a form of communication at sea used for maneuvering, warning, or salute exchanges, so it is crucial to understand the signal meanings as defined by your particular navy's traditions and regulations. For instance, different numbers of blasts can indicate different maneuvers or acknowledgments between vessels. Therefore, it is essential to refer to the signal codes and traditions of your navy service to react appropriately.