Rescue boat always equipped on the single arm slewing davit,if the 35KN on/off release hook has been installed on the Rescue boat,the rescue boat davit should be equipped with a rescue boat and liferaft release hook.also,this rescue boat could be equipped with a A Frame davit,electrical power winch,always used on the small towing vessels or small tankers, which is very popular in Singapore,Vietnam marine market,also, gravity luffing arm davit could be used as the rescue boat davit,if the Totally enclosed Lifeboat is less than 8.5M used as the recue boat,Approval from CCS,BV,RINA,NK,ABS,MED society.