I’m starting this topic to both log my experiments and to petition contributions and ideas from others. the basic premise, to build a strong, inexpensive inflatable boat.. A rescue lifeboat is a boat rescue craft which is used to attend a vessel in distress, or its survivors, to rescue crew and passengers. it can be hand pulled, sail. Samsa (south african maritime safety authority) samsa issued skipper cocs. day skipper – local waters (restricted) skipper – inland waters (restricted).