Hamilton Jet HJ212 Installation And Service Manual page 23

Installation and Service Manual
Trim tabs
If fitting stainless steel trim tabs, Refer to section: Precautions Against Corrosion on page 4-1.
When moving astern, trim tabs that are mounted alongside the jet unit, will interfere with the reverse
jetstream reducing thrust. Trim tabs therefore must not be mounted beside the jet unit.
Trim tabs may be mounted under the jet unit with any control equipment mounted on either side of the jet
unit.
The following diagram shows the maximum size and position of the trim tab that may be located under the
jet unit.
Contact Hamilton Jet if further details are required.
1 Maximum size of trim tab
2 Upper level of trim tab
3 No trim tabs allowed in this area
Figure 5: Allowable Trim Tab Location
3-3
Design Basics