We had 34 buoyancy bags
tethered in strategic places around the ship to ensure the bow and stern were level for floating out, Mr Browne said.
The purpose of the buoyancy bags
was to provide stability and assist the crane in breaking the vessel free from the mud and debris.
The aliens keep themselves aloft by means of dangling onion-like buoyancy bags
, and communicate with pulses of light.
She said that they used their rucksacks as buoyancy bags
but quickly found themselves waist-high in water and forced to swim.
Finally, unless they're fully kitted out with fitted buoyancy bags
, canoes aren't really appropriate for big white water (although smaller rapids can be negotiated given the appropriate combination of courage and skill).
They were washed against a battered life-raft and held on to the buoyancy bags
on the side.
"But it has been done now and buoyancy bags
have been fitted.
"There are plans to install a further eight buoyancy bags
which will be inflated prior to the lift."