National Producer Number definition, categories, type and other relevant information provided by All Acronyms. NPN stands for National Producer Number Search for acronyms, abbreviations,
Height Considerations. There are no height limits for jockeys. However, jockeys tend to be shorter than normal to meet the weight guidelines. The average height for a jockey is between 4 feet 10 inches and 5 feet 6 inches.eight Limits. Depending on specific race and track guidelines, a jockey must weigh between 108 and 118 pounds without clothing and equipment, which can add a significant number of pounds.
1 Tomorrowland Speedway Height Requirement 52 inches (132 cm) or taller. 2  Stitch's Great Escape Height Requirement 40 inches (102 cm) or taller. 3  Space Mountain Height Requirement 44 inches (113 cm) or taller. 4  Splash Mountain Height Requirement 40 inches (102 cm) or talle.pcot 1  Â®. Test Track Height Requirement 40 inches (102 cm) or taller. 2  Mission: Space Height Requirement 44 inches (113 cm) or taller. 3  Soarin' Height Requirement 40 inches (102 cm) or taller.