A single-engined [[World War I]] [[biplane]] [[bomber]] and coastal patrol [[aircraft]] built by British firm Airco. Crew included pilot and observer/gunner, the former having a forward-firing Vickers [[machine gun]] and the latter manning a ring-mounted Lewis. The DH4 could carry up to 210 kg (460 lb) of bombs.

h4. See also

* [[List of airplanes]]

h4. External links

* "Wikipedia: Airco DH.4":http://en.wikipedia.org/wiki/Airco_DH.4
airco dh.4