Just to add, I found the following article written in Spanish which I have translated the better I could:
https://metrolibre.com/economía-y-m...lque-de-los-buques-en-el-canal-de-panama.html
How does the towing of ships in the Panama Canal work?
To carry out the safe passage of a ship through the Panama Canal it is essential to have a team of between 6 and 7 workers in a tugboat, which are responsible for finding the ship at a specific point in Panamanian waters and guiding it to the locks of the interoceanic way.
It is the tugboat captains, the sailors, the machine engineer and the oiler that make up the crew of a tugboat.
Captain Alejandro Taylor, a member of the Union of Captains and Deck Officers (UCOC) explained that the number of workers in a tugboat depends on whether it will go in the bow or stern of the vessel.
"In the case of the tugboat that goes aft of a ship (behind) there are two captains, two sailors, a machine engineer and an oiler.
In the bow (forward), the difference is that before he had three seamen, but now the ACP only allows two.
The role of the third seaman enters when it comes to a high-risk vessel, but as we are guarantors of the safety of the Canal crossings, we insist that three seamen should be on the tug, "explained the captain.
Taylor explained that the first thing they do is report as a tug captain and say the phrase: "New crew on board, please confirm our next assignment." Once confirmed, they go to the indicated tack where they will meet the ship.
He explained that in the case of the Atlantic, if the ship comes from the south, the tugs make their sign on the Atlantic Channel and release it in Gatún Reach.
He added that the meeting point with the ship will depend on the size of the ship.
"Once the pilot (pilot) is reported to be on board the ship, we proceed to the mooring," said Taylor.
The captain pointed out that the first tugboat to be attached to the ship is the Delta, the one that goes aft.
Then come "Bravo" (to one side of the bow), "Charlie" (to the side of stern) and depending on the size they have in 'stand by' to "Echo tot".
The pilot is the one that tells the tugs if they should tie themselves, line up or any other instruction.
"Normally the Alpha makes firm at a speed of 3 knots or less before entering the locks.
And then the pilot is giving the instructions according to the hands of the clock and holds the ship to the lock, "he said.
ACP ensures that the adjustment of seafarers is the correct measure
ML | The Panama Canal Authority (ACP) rejected the version of the Union of Captains and Cover Officials (UCOC), who supported the stoppage of work on Thursday, because the Authority decreased a third seaman in the tugboats. They claim that this is the correct measure to which they have returned.
Captains demand 3 seamen for safety in the crossing
ML | The Tugboat Captain, Alejandro Taylor, remarked that they did not stop the operation of the interoceanic highway, but that it was the Panama Canal Authority, which did not follow the procedures manual. They require that the third marine be maintained within the crew of each tug, for safety.
Regards
Tomi.