50KN Gravity Luffing Davit,usually using for the 5.0M Totally Enclosed Lifeboat and Rescue Boat,Tanker version or cargo version,this complete set is the basic requiring type for the lifeboat and davit,economical for the cost and convenient for the delivery ,We have sold over 10 sets of the 50KN Gravity davit with lifeboats for the over sea marine trainning insititutes and Marine school with CCS,BV approval from the society.