No. 234 Squadron RAF had a long career within the RAF, being operational on flying boats in World War I and on fighter aircraft in World War II. After the war it remained a fighter unit till 1957. In its last incarnation the squadron was in turn Operational Training Unit (OTU), Tactical Weapon Unit (TWU) and part of No. 4 Flying Training School RAF until lastly disbanded in 1994.
OTU stands for Operational Training Unit.
( z1 stand :ARG0 ( z2 organization :name ( z3 name :op "OTU" ) ) :ARG1 ( z4 organization :name ( z5 name :op "Operational" :op "Training" :op "Unit" ) ) )