Originally Posted by moonchaser
Are there any programs for learning
to handle a twin engine trawler? I have extensive single
engine experience but just purchased a 36' twin screw trawler & would prefer to feel more confident prior to first trip from dock
Don't know about programs in the application software
sense, but there are boat handling schools scattered around the country. Or you could hire a captain
to come aboard, give you some pointers.
FWIW, you already know how to do it. Everything you know about single-screw docking
still works... but now you can use one engine to bump the stern one direction, the other to do the other.
For a stern-to docking
situation, imagine two "parallel" arcs, or parentheses if you like: ( )
Port engine drives the port side arc
, using forward or reverse. Starboard engine drive the starboard side arc
, ditto. IOW, prop walk works as with a single, but now you have two directions of that to make use of.
In most cases, depending on tides/current and windage, you can set your wheel
amidships and the throttles down at bone idle, use neutral a lot and use only the shifters to steer (and very slowly move) the boat. If the boat's going in the direction you want while you're in neutral... let it continue doing that. (I usually turn to face aft, the direction the boat will be moving, in this situation.)
If your first attempt is on a dead calm day... you'll make a pretty good landing with no further instruction. Once you can do it well once, you'll have the theory down.. and after that it's just a matter of practice to develop a feel for your particular boat.