Jumping Clearance of Rudder

what is jumping clearance? The Clearance between the Rudder tip and the rigid hard object welded/fixed on the hull which is going to be first inline to stop the Rudder. Why Jumping clearance? Lectures series on Steering gear onboard ship    • STEERING GEAR ONBORD SHIP   Lectures series on Marine Fuel oil Purifier    • MARINE FUEL OIL PURIFIER   Lectures series on Refrigeration & Air Conditioning    • Refrigeration and Air-conditioning   Lectures series on Marine Fresh Water Generator    • FRESH WATER GENERATOR   Lectures series on Marine Boiler    • Marine Boilers and  Power plant   Lectures series on Marine Air Compressors    • Marine Compressors Q&A MEO Exams.   Lectures series on Oily water separator    • OILY WATER SEPARATOR   Lectures series on Line diagram onboard ship    • Line diagram onboard ship   Let's Learn & Grow together with Marine Etutor.