Boaters who downsize their boat, experience more than just difference in size. Quite often, it involves a different drive system as well.
A common misconception is that twins are twins and they all handle the same way. So, if you go from a Twin Inboard to a Twin Sterndrive or vice-versa, the new boat will handle the same as the old one. Not so!
Twins are not identical. Pat discovered the hard way. Read her frustrating downsizing story.
“We owned a 33’ Twin Inboard Sea Ray for years.” Pat told us as she explained her docking story. “Then, we downsized to a 28’ Twin Sterndrive Sport Cruiser. We thought we could bring our docking skills with us and continue to enjoy the boat. Out on the water wasn’t so bad, it was the docking that was the real problem. It just didn’t handle the same as our twin inboard.
Many times, we came close to hitting other boats when we tried to maneuver into our dock. Everybody told us to tie the bow line first, but that doesn’t work for us, because our side decks are too narrow. It is impossible to get to the bow.
We are so stressed about docking, that we have only put 7 hours on the boat last year and considering getting out of boating all together.
In a last attempt to find a solution, I went searching on the internet to all the docking sites, docking aid sites and then found your powerboatdocking.com website. I found so much information there and decided to order your Twin Sterndrive Lessons and Video, but wanted to talk to you first.
When I called and talked to you Doug, I learned more in that conversation than everything I had learned so far about docking a Twin I/O. I ordered the Twin I/O Introductory and Advanced Lessons and the Video.
I was so relieved to know that I didn’t have to tie the bow first. It just doesn’t work and I can’t understand why everybody keeps telling us to do it.
You told me your FLIPP Line procedure would eliminate the stress and fear of docking and that’s what we need. We are stressed enough at work and want to get away from stress—not add to it.
We even had a Mega Yacht Captain come aboard to teach us to dock our 28 and he couldn’t do it. He said the boat didn’t handle like he expected. He was absolutely no help to us at all. I was ready to buy a gadget to help get the line around the dock cleat or bollard and/or have a $10,000 bow thruster installed.
After my conversation with you, I realized that I didn’t need any of them. I could just follow your procedure and I would be able to dock effortlessly and stress free making boating the fun it’s supposed to be.
No one has been able to tell us how to dock a Twin I/O, except you and your method really, really works! Your FLIPP Line procedure works like magic”
Thanks Pat for your story
This problem is common among boaters who buy a boat with a drive system different than they are accustomed to.
The captain of the Mega Yacht, like so many boaters, assumed that his Twin Inboard method of docking would naturally work on Pat’s 28’ twin sterndrive; but, he obviously didn’t realize the big difference between inboards and sterndrives.
Like the saying “Just because a plumber has teeth, it doesn’t qualify him as a dentist.” Just because a Captain can dock a Twin Inboard, it doesn’t qualify him as a Sterndrive Docking Instructor”.
Moving from a twin inboard to a twin sterndrive requires learning all over again. Different docking and handling techniques are required. Here’s why…..
Twin Inboards have fixed shafts and propellers (non aimable) under the hull. The propellers are fitted to the shafts that extend on an angle through the bottom of the boat. The motors are fully inside the boat and are hence called inboards.
The rudders that are placed behind the propellers (also under the hull), deflect the propellers’ thrust for steering in forward. In reverse, the rudders rely on the water passing by them for steerage.
Twin Sterndrives or I/O’s are drive systems that are a combination of inboard engines connected through the transom to outdrives.
The package is known as a Sterndrive or an Inboard/Outboard or an I/O–Half in and half out. Sterndrives are not direct drives as some people call them.
The motor portion is totally inside the transom The outdrive portions are mounted outside the transom, positioning the propellers well aft of the transom of the boat. The drives turn to direct the propellers’ thrusts for steering. In both forward and reverse, the drives and thereby the propellers, are aimed the direction you want the aft of the boat to be pushed or pulled.
Twin I/B vs Twin I/O
They are two totally different systems with propellers in totally different locations relative to the hull–totally under the hull versus totally behind the transom. The propellers are fixed or non-aimable versus aimable. Therefore, it only stands to reason that they wouldn’t react the same way to the wheel, throttles and shifts.
Shorten Your Learning Curve
Jump the learning curve. Get the right Docking Lessons upfront, to avoid weekends of frustration experienced by Pat and so many others. Twins are NOT Identical.