According to the D.O.D., and the D.O.E. (formerly the Atomic Energy Commission)...never.
The Air Force's first Broken Arrow incident occurred on March 11, 1950. A B-36 bomber carried a nuclear weapon when it experienced a cockpit fire and crashed in Texas. While the non-nuclear detonation of the weapon occurred, there was no radioactive contamination.
Broken arrow
air resistance, gravity, acceleration/deceleration. --------------- Inertia, gravity, air resistance, wind turbulence/vortices, the rotation of the earth.
Arrow Air ended in 2010.
Arrow Air was created in 1947.
Arrow Air ended in 2010.
The arrow on his head signifies that he is a master airbender. The flying bison were the first airbenders.As the flying bison were the first airbenders and they have an arrow on their head, I am guessing that this is why the masters also have an arrow put on their head.
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Arrow Air ended in 2010.
I Shot an Arrow into the Air was created on 1960-01-15.
the arrow points in the direction of air flow.
the 'aw' and 'ow' sounds in shot an arrow air.
The arrow opposite the direction of travel is the air resistance or drag.