Orca3D News


Wednesday, September 15, 2010

Answer to the Naval Architecture Riddle

Have you figured it out yet? Have you built an Orca3D model to figure it out? If not, here's the riddle again, and the solution:

The following “riddle” was submitted by Razmik Baharyan of Bulgaria:

Imagine we have a saucepan in fresh water, with the following characteristics: 
  • Diameter 20 cm
  • VCG 3 cm
  • Saucepan displacement 0.314 kg
  • Depth 10 cm
What will the metacentric height be for each of the following three cases? 
  1. The saucepan is empty. 
  2. The saucepan is empty, but is damaged and fills with 1 cm of water. 
  3. The saucepan is empty, but is damaged and fills with 5 cm of water.
Assume zero thickness for the saucepan itself, and that after the water leaks into the saucepan the damage is repaired. Remember, GMt=KB+BM-KG