31. The empennage consisted of a single, large, triangular fin and biplane horizontal stabilisers . 32. It has a high-mounted stabiliser . 33. Stability issues were fixed with underwater stabilisers . 34. Unfortunately a stabiliser breaks loose in Stingray and they all become stranded in the sea. 35. If the shooting technique of the archer were perfect, no stabilisers would be required. 36. The various types of stabilisers are each designed to minimise a particular direction of movement. 37. The successful addition of stabilisers can only be achieved by actual testing and precise groupings. 38. On a three-surface aircraft, the tailplane acts as a conventional horizontal stabiliser . 39. Instead of a single vertical stabiliser , there were two mounted under the rear wing. 40. As the stabiliser is maximal in J 1, it acts primitively on the graph.