You should already be aware of a boat approaching from astern ... your head needs to be on a swivel as the pilot at all times. You need to know everything about your surroundings. If you hear this signal you should probably slow down and let them pass safely. Don't crowd them or try to out run them.
If another boat signals their intention to pass you from astern, you should answer with the same signal if in agreement and maintain course and speed.
you go and read the manual and then take your test
Maintain course and speed to allow the faster boat to pass safely.
If a boat signals to pass from astern, you should maintain your course and speed while being aware of the vessel's approach. Ensure that you have adequate visibility and space for the overtaking boat to pass safely. It’s important to keep a lookout and be prepared to take any necessary action if the situation changes. Always follow local navigation rules and regulations regarding overtaking vessels.
the boat is going astern. (backwards)
Depending on which side they intend to pass you on, they should give you and audible horn blast. One blast indicates passing on the starboard and tow blasts indicate passing on the port. Remember to return the same audible horn signal to let them know that you heard them and are aware of their intentions. One blast from them gets one blast from you and so on. The vessel being passed will remain the Stand - on vessel, which means you do not alter your course or speed. They, being the Give-way vessel must alter speed and course to pass.
Depending on which side they intend to pass you on, they should give you and audible horn blast. One blast indicates passing on the starboard and tow blasts indicate passing on the port. Remember to return the same audible horn signal to let them know that you heard them and are aware of their intentions. One blast from them gets one blast from you and so on. The vessel being passed will remain the Stand - on vessel, which means you do not alter your course or speed. They, being the Give-way vessel must alter speed and course to pass.
Depending on which side they intend to pass you on, they should give you and audible horn blast. One blast indicates passing on the starboard and tow blasts indicate passing on the port. Remember to return the same audible horn signal to let them know that you heard them and are aware of their intentions. One blast from them gets one blast from you and so on. The vessel being passed will remain the Stand - on vessel, which means you do not alter your course or speed. They, being the Give-way vessel must alter speed and course to pass.
3 blasts on the horn says you are going astern
A boat is astern propulsion and is in the act of backing up
A boat is using astern propulsion and is in the act of backing up.
Depending on which side they intend to pass you on, they should give you and audible horn blast. One blast indicates passing on the starboard and tow blasts indicate passing on the port. Remember to return the same audible horn signal to let them know that you heard them and are aware of their intentions. One blast from them gets one blast from you and so on. The vessel being passed will remain the Stand - on vessel, which means you do not alter your course or speed. They, being the Give-way vessel must alter speed and course to pass.