Thud Ridge is a 1969 memoir by Jack Broughton about flying the F-105 "Thud" for the United States Air Force in the Vietnam War during Operation Rolling Thunder. The title Thud Ridge derives from the nickname given by F-105 pilots to the Tam Dao range, which was both a waypoint during air attacks in the vicinity of Hanoi, North Vietnam, and a terrain masking feature for ingressing fighters. The book set a style that was followed over the next several decades by a spate of gritty memoirs by air veterans of the Vietnam War. Broughton's book is unique to the extent that it was described as "history in the making" by Hanson W. Baldwin of the New York Times. Inspiration and publication The book is based on Broughton's tour of duty between September 1966 and June 1967 as vice commander of the 355th Tactical Fighter Wing, based at Takhli Royal Thai Air Force Base, Thailand. The narrative is anecdotal in nature, a commentary of his observations of persons, aircraft, and events during his tour, more or less chronologically, but without dated references. Few individuals are identified by other than first or nicknames, but Broughton develops most as characters through descriptions of their career backgrounds. Broughton's accounts of missions "up north" were enhanced in both accuracy and verisimilitude by verbatim transcriptions of radio transmissions he recorded using a small tape recorder mounted in the cockpit of his aircraft. In Thud Ridge Broughton is highly critical of the U.S. command structure directing air operations against North Vietnam. He blames micromanagement by the highest levels in Washington down to the Thirteenth Air Force, a command echelon based in the Philippines, for losses of men and aircraft that he characterizes as "astronomical" and "worthless." He is particularly critical, however, of the "bomber mentality" management by generals who came up through the Strategic Air Command and then occupied key command slots in the war, which was being fought by pilots of the Tactical Air Command. The book came about when, at the completion of his tour of duty, Broughton and two of his pilots were court martialed by the USAF for allegedly conspiring to violate the rules of engagement regarding U.S. air operations. Although acquitted of the most serious charges, Broughton, who had been personally relieved of duty by Pacific Air Forces commander Gen. John D. Ryan, was subsequently transferred to an obscure post in