In order to ensure proper functionality of the Mechanical Steering System and safety
of the boat the selection of the correct STEERING SYSTEM becomes a critical exercise.

Due to various combinations of engine and boat configurations the following need to considered while selecting the steering system .

- Boat Speed
- Displacement
- Engine Power
- Boat size
- Engine type
- Hull type
Higher Engine Power or Boat Speed increases the load on the Steering System due to higher torque generated by the propeller. Bigger Boats with inboard engines and higher displacement hulls have higher rudder loads and may require Hydraulic Steering Systems. Hydraulic Steering Systems can be used in other applications as well as where the helmsman desires lower loads. When a outboard powered boat is fitted with a Mechanical Steering System the Steering System experiences steering loads which try to move the boat in the direction of propeller rotation. These turning forces need to be compensated by helmsman while keeping the boat on a straight course. Also these forces cause fatigue to helmsman. The Non-Reaction Helms compensates these forces by locking the Helm shaft and not transmitting the feedback loads to the shaft. The helm shaft remains locked by a friction mechanism and is released only when the Steering wheel is turned by the helmsman. This ensures lesser fatigue and greater safety.
Based on the above factors, one of the Steering System should be selected from a list below:
  • Mechanical Steering System : Reaction or Non-Reaction
  • Hydraulic Steering System

Selection Guide for MULTIFLEX Mechanical Steering Systems:

APPLICATION BOAT LENGTH STEERING HELM STEERING CABLE

Inboard

up to 35 feet (10.5m)

LM-H-101

LM-H-101-A

LM-H-101-NR

LM-H-301

LM-H-401

SC-16

SC-16

SC-16

SC-16

SC-11

Outboard

up to 30 feet(9.0m)

Stern Drive Power Assisted


ENGINE POWER

Outboard

up to 40 KW(55Hp)

LM-H-201

LM-H-201A

SC-18

SC-18

NOTE:
1) Double cable steering system should be used for boats operating above 50 mph.
2) MULTIFLEX Mechanical Steering Systems should not be used on boats fitted with engines that exceed the maximum horsepower rating of the boat.
3) The above cross reference chart is for reference only. User should confirm the interchangeability before installation.