Warning Messages

The speed range has been narrowed so the chosen method ranges are satisfied

This warning informs you that the speed range he entered has been reduced to comply with the limits of the resistance / propulsion factors method chosen.

HBT (bulb centroid height) has been changed in Holtrop & Mennen since the original value is outside the limit of 0.6*Tf

This warning informs you that the value for bulb centroid height (HBT) entered has been altered, since it breaches the Holtrop & Mennen limit of 0.6*Tf. The calculations are performed with the bulb centroid height equal to 0.6*Tf, since HBT plays only a small part in Holtrop & Mennen's prediction. You can always re-run the calculations with an acceptable value for HBT if you choose.

Range of Application of Chine Information