Saturday, December 19, 1998 Published at 13:17 GMT
'Drones of death' hit by Tornados
Hangar and aircraft: General Sir Charles Guthrie said it was destroyed
The UK said on Saturday it had "severely dented" Saddam Hussein's capacity to build deadly drones capable of wiping out millions of people with anthrax.
He said the Iraqi leader had ordered work to begin in 1995 on the unmanned planes, codenamed L29s.
Mr Robertson said: "They have two under-wing weapon stores containing 300 litres of anthrax.
He said: "We suspect he wanted to deploy these drones of death to southern Iraq, where they would have been a threat to his neighbours, and we hit these on Thursday night."
Addressing those who had questioned the air strikes policy, Mr Robertson said: "It must be absolutely right to destroy these terrible weapons."
The chief of the defence staff, General Sir Charles Guthrie, said the L29 project used specially adapted Czech-made trainer planes, similar to the British Hawk aircraft.
They are fitted with special aerosols under the wings which are capable of spraying anthrax which could travel up to five miles downwind of the aircraft.
Nick Cook, an expert on unmanned aircraft who works for the magazine Jane's Defence Weekly, described the L29 programme as a "desperate measure".
He said: "Crop-sprayers are necessarily low-flying planes, which could easily be shot out of the sky".
Robot jets of the future
More alarming, he said, could be the development of a second type of unmanned plane which uses a MiG 21 fighter jet.
"We first heard they were being developed in an Unscom report about a year ago," he said.
"We then knew they were being developed, but not manufactured. It sounds like they've moved on a stage now."
But he said even the unpiloted MiG bomber was relatively unsophisticated, as it still requires a pilot in another aircraft nearby, and has a limited range.
"It really shows how far sanctions are forcing Saddam Hussein to live off his wits and come up with such weapons," he said.
Scientists in other countries, including the UK, USA and Israel are all working on developing pilotless reconnaissance aircraft.
It has been predicted that robot superjets, capable of far greater speeds and tighter manoeuvres than pilots can withstand, could eventually replace manned jets in the next century.