But the length at the water line of a Nimitz class carrier is 1,040 feet... Based on the well known formula for hull speed(1.34x sqrt of the length of the waterline), that puts the max speed of them at about 43 knots... Or right about 50mph. While some designs allow for exceeding hull speed, It's fairly doubtful that a ship the size of an aircraft carrier can utilize those methods. It's possible that they don't have the engine power to make 43 knots, but I bet that they come very close to it.
Actually, most cats will have an estrus cycle (the technical name for heat) within six to eight weeks after giving birth. In rare occasions, a cat will have an estrus cycle within a week after her kittens were born.
How Long is the Gestation Period. The standard gestation period for cats is about 60 to 70 days, the equivalent of about two months. This will be a period of ups and downs for your pregnant cat. She may go from being contented and affectionate, to agitated, and back again during this time.hen the gestation period for cats is finally over, It can be a very exciting time. When itâs time for your cat to give birth, you will know. She will most likely go into hiding for very long periods of time.