Rate of Turn Indicator Advantage, SOLAS requirement

Rate of Turn Indicator Advantage, SOLAS requirement

To ensure that the ship turns at a steady rate.
To ensure the number of degrees the ship will turn in a fixed period.
ROTI is a free gyro with only two degrees of freedom. Freedom to spin and tilt.
Formula, rate of turn= V/R * 57.3/60

SOLAS requirement
For ship 50000 gt and above.
Dial should be marked 0-60 degrees per minute on either side.
Dial should not be marked less than 0-30 degrees per minute on either side.

Use of ROTI
It can be used,
To ensure that the ship turns at a steady rate.
To ensure the number of degrees the ship will turn in a fixed period.

Incorporate with gyro
ROTI is a free gyro with only two degrees of freedom. Freedom to spin and tilt.
To turn a ship, ROTI is a very useful equipment.

Advantage
Ensure that the ship turns at a steady rate.
Easy to measure.
Effective in pilotage.
Help helmsman to steer.

Precautions
Is it operational
Are you going to monitor

Constant radius turn
Let Ship will go from A to B
Total course change= @°
Total distance AB= R@/57.3 mile
We know, distance= V * T
So, V T = R@/57.3
Or, T = R@/57.3V (time to cover the distance)
So, rate of turn @/T = 57.3V/R
Rate of turn= V/R
Therefore, for constant radius, relationship between V and ROT is established.