US launches qualification tests for upgraded nuke bomb

It is part of an effort to upgrade one of nuclear weapons that has been in US arsenal for decades

Scientists at Sandia National Laboratories are claiming success with the first in a new series of test flights that are part of an effort to upgrade one of the nuclear weapons that has been in the US arsenal for decades.

An F-16 from Nellis Air Force Base dropped an inert B61- 12 bomb over the Nevada desert last month to test the weapon's non-nuclear functions as well as the plane's ability to carry the weapon.

With a puff of dust, the mock bomb landed in a dry lake bed at the Tonopah Test Range.

Scientists are planning to spend months analysing the data gathered from the test.
 

Officials say the first production unit of the B61-12, developed under what is called the Life Extension Program, is scheduled to be completed in 2020.