Awarded: November 1936 (BR155)
Blazon: A Sword erect point downwards Azure pomelled and hilted Or enfiled by a Serpent nowed biting its tail Or
Link: The sword indicates the function of the squadron. The serpent is included because it is regarded as sacred by the people of the State of Manipur from which the unit claims to have been the first to operate against the Japanese.
Motto: Eternal vigilance
History: Formed Chingford on 14 September 1918. Merged with No 194 Squadron at Kuala Lumpur on 3 June 1959 to form 110 Sqn.
Sponsored by the Royal Air Force Heraldry Trust and dedicated to all who served with No 155 Squadron.
Battle Honours: No Standard.