Ive been reading a declassified defence report on submarine hydrodynamics recently, and found some intresting pointers.
The 73 page document is wirtten by Professor Peter N Joubert, and is intended for use in the submarine world.
As i understand Professor Joubert is said to be one of the leading Professors in submarine hydrodynamics, and advises navies all over the world.
Some pointers i found is that "The sail is a large factor in the overall drag of a submarine" which i found quite astonishing, because i assumed that the sail not only kept the submarine up right but also to stop the submarine from snap rolling, here it says "If the sail is too high it can cause a snap roll".
and through out the two pages its all about Drag and what not how the sail causes the amount of drag but also why its needed.
Can any of the Defence analysts here tell me thier personal views on submarine sail's id like to get the overal view of this guy and your personal remarks.
The 73 page document is wirtten by Professor Peter N Joubert, and is intended for use in the submarine world.
As i understand Professor Joubert is said to be one of the leading Professors in submarine hydrodynamics, and advises navies all over the world.
Some pointers i found is that "The sail is a large factor in the overall drag of a submarine" which i found quite astonishing, because i assumed that the sail not only kept the submarine up right but also to stop the submarine from snap rolling, here it says "If the sail is too high it can cause a snap roll".
and through out the two pages its all about Drag and what not how the sail causes the amount of drag but also why its needed.
Can any of the Defence analysts here tell me thier personal views on submarine sail's id like to get the overal view of this guy and your personal remarks.