''Thud Ridge'' was the nickname given by

United States Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...

F-105 Thunderchief The Republic F-105 Thunderchief is an American supersonic fighter-bomber that served with the United States Air Force from 1958 to 1984. Capable of Mach 2, it conducted the majority of strike bombing missions during the early years of the Viet ...

pilots (the aircraft being nicknamed "Thud") during the

Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...

to the

Tam Dao TAM may refer to: Biology * Thioacetamide, an organosulfur compound * Tumor-associated macrophage, a class of immune cells * Transparent Anatomical Manikin, an educational model Technology * Tanque Argentino Mediano, the main battle tank of Arge ...

range a 24 km, 5000 ft high ridge that ran parallel to the Red River approximately 32 km northwest of

Hanoi Hanoi or Ha Noi ( or ; vi, Hà Nội ) is the capital and second-largest city of Vietnam. It covers an area of . It consists of 12 urban districts, one district-leveled town and 17 rural districts. Located within the Red River Delta, Hanoi is ...

, which was both a waypoint during air attacks and a terrain masking feature for ingressing fighters in the vicinity of Hanoi,

North Vietnam North Vietnam, officially the Democratic Republic of Vietnam (DRV; vi, Việt Nam Dân chủ Cộng hòa), was a socialist state supported by the Soviet Union (USSR) and the People's Republic of China (PRC) in Southeast Asia that existed f ...

. The North Vietnamese eventually installed anti-aircraft artillery on the ridge using heavy-lift helicopters.

Phúc Yên Air Base Phúc Yên Air Base (also known as Noi Bai Air Base) is a Vietnam People's Air Force (VPAF) ''(Không quân Nhân dân Việt Nam)'' military airfield located immediately north of Noi Bai International Airport and approximately north of Hanoi. ...

is located at the base of the ridge, while

Kép Air Base Kép Air Base is a Vietnam People's Air Force (VPAF) ''(Không quân Nhân dân Việt Nam)'' military airfield located near the town of Kép, Bắc Giang Province approximately northeast of Hanoi. History Vietnam War A September 1965 CIA inte ...

is located east of the ridge. The ridge features heavily in the book ''

Thud Ridge ''Thud Ridge'' was the nickname given by United States Air Force F-105 Thunderchief pilots (the aircraft being nicknamed "Thud") during the Vietnam War to the Tam Dao range a 24 km, 5000 ft high ridge that ran parallel to the Red River ...

''.

References

{{Reflist

External links

Map of Thud Ridge
Vietnam War sites