What is PGM-17 Thor?
{{Infobox weapon | name = SM-75/PGM-17A Thor | image = Thor IRBM.jpg | image_size = 250 | caption = A Thor [[intermediate-range ballistic missile]]. | origin = United States | type = Intermediate Range Ballistic Missile (IRBM) | service = | used_by = [[United States Air Force]] (testing)<br />[[Royal Air Force]] (operational deployment) | wars = <!-- Production history --> | designer = | design_date = 1957 | manufacturer = [[Douglas Aircraft Company]] | unit_cost = | production_date = 1959–1960 | number = About 225; peak deployment was 60 | variants = [[Delta rockets]] <br/> [[Thor (rocket family)|Thor rocket family]] <!-- General specifications --> | spec_label = | weight = {{convert|109330|lb|order=flip}} at launch. | length = {{convert|64|ft|10|in|order=flip}}. | part_length = | width = | height = | diameter = {{convert|8|ft|order=flip}}. | crew = | passengers = <!-- Missiles only --> | wingspan = | propellant = liquid propellant | ceiling = | altitude = {{convert|390|mi|order=flip}}. | depth = | boost = | accuracy = | launch_platform = | transport = }} The '''PGM-17A Thor''' was the first operational [[ballistic missile]] of the [[United States Air Force]] (USAF). {{Authority control}} [[Category:missiles]] [[Category:Nuclear weapons]] {{military-stub}}