Firebase Linda is the watchdog defence base for Da Nang, South Vietnam's second-biggest city. From?
AERIAL VIEW..firebase Linda
MV & CU Troops firing 122mm rocket (3 shots)
SCU Mortar being fired
GV Target area
MV 122mm rocket fired
LV & SV Soldiers patrolling outskirts of firebase (5 shots)
CU & MV Artillery and mortar being fired (2 shots)
LV Target area showing explosions
Initials ES. 2316 ES. 2331
SATELLITE TELERECORDING original colour on 14136/71 70ft
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Background: Firebase Linda is the watchdog defence base for Da Nang, South Vietnam's second-biggest city. From a ridge about 10 miles (16 kilometres) outside Da Nang, rockets, artillery and mortars train their sights on North Vietnamese and Viet Cong moving around the area.
The aim is to keep would-be-attacks on the city outside rocket range. The batteries receive their targets from information supplied by soldiers patrolling on the outskirts of the firebase.
SYNOPSIS: From its perch on a ridge 10 miles outside Da Nang, Firebase Linda is the watchdog for South Vietnam's second-biggest city.
The main idea behind defensive strategy is to keep North Vietnamese and Viet Dong outside rocket range. This 122-millimetre rocket is effective up to about six miles.
Mortars and artillery are also used to harass what South Vietnamese forces claim are more than a thousand enemy troops in the area.
These soldiers -- patrolling the outskirts of the firebase -- supply information for Firebase Linda's batteries. Spending about 27 days a month in the field, they go out looking for enemy rocket and commando battalions trying to get close enough to hit Da Nang. If they spot movement they can also direct shelling to where supplies may be hidden. Such explosions will kill anyone within 50 years. Military experts in Saigon describe Firebase Linda as an exercise in "dynamic defence".