dChan
Anonymous ID: f72eea May 14, 2018, 11:14 a.m. No.1408283   🗄️.is 🔗kun

Firetruck designation the letter "Q" refers to a quick attack engine.

 

https://en.m.wikipedia.org/wiki/Glossary_of_firefighting

 

Q74 = Quick Attack 07/04