UTB-41 US Coast Guard Boat Mahogany Kiln Wood Model Small. This Premier-Quality handcrafted US Coast Guard UTB-41 Patrol Boat. Is hand-sculpted made from environment-friendly and abundant kiln-dried Philippine Mahogany Wood and skillfully handpainted by gifted artists. Overall Length = 9 inches. Model Weight = 2 pounds (0.90 kgs). Package weight = 5 pounds (2.50 kg).