For a boat with a transom hung rudder I recommend Y&B standard with an extra mounting tube.
This system has a mounting kit included that together with the extra mounting tube allows for mounting around and behind the rudder.
For fitting to smaller boats Y&B can be ordered with a short pendulum rudder, which is a free option.
The vane mast can be shortened by about 70 cm to suit a specific situation.
But just to state the obvious, the windvane still needs to get wind.
To reduce the height of the vane mast, the pushrod that runs inside the vane mast needs to be shortened. It comes in two pieces, to be glued by the customer. Best to leave that to be the last task, after assembly and installation.
Most plastics suffer from degradation due to the influence of ultra violet rays to some extent.
But the plastics used by Mister Vee are either in a position where actual strength is not much of an issue or a fibre reinforced version is used.
The fibres do not get damaged by UV so the only problem that may occur (after several years of use) is that the fibres become exposed at the surface of the tubes.
The gears are part of the system that transfers movement from the windvane to the vertical axis of pendulum rudder.
The gears ONLY transfer movement, not force. And yes, they are strong enough.
But hang on, why do other brands use bronze or stainless steel?
The Mister Vee pendulum rudder is almost perfectly balanced. The forces that are generated by the rudder act on the centre of the pendulum rudder tube.
This means that the gears indeed only transfer movement and sheer strength is not an issue.
The manual for using your Vee (and servo pendulum systems in general) can be found in the Mister Vee brochure in the download section.
The assembly manuals are available as PDF files. Access to these files is enabled when your system is shipped.
You need to be logged in to access them. They can be reached from a menu further down the website.
From the start in 2006 the Mister Vee self steering systems were shipped in parts to be self assembled. This allowed packing the systems by an external company at a very low rate.
In 2012 government policies on these kinds of companies changed resulting in turmoil.
This eventually lead to poorer quality and unhappy customers.
To get quality back up we took back parts handling. As it turned out it took relatively little extra time to actually assemble the systems in stead of just picking parts. As a bonus, parts get an extra check if they are up to standard.