Abstract: A life boat adapted to be thrown out into a body of water from a mother boat for automatically forming a lifesaving air boat as a result of being thrown onto the water. The lifeboat structure includes a source of compressed air in the form of an air bomb which is released when a retaining pin for a control valve supplied for the air bomb is pulled out. The release of the compressed air inflates air tubes constructed and defined to form a floating body or lifeboat. The lifeboat may include air tubes to form an enclosure on the floating body for eliminating the danger of an individual being washed away by rough waters. The resulting floating body or lifeboat is further defined to be propelled through the water by a manually operated mechanism or wind powered mechanism. The floating structure will readily restore to a normal position even when capsized.