This Dark Angels Thunderhawk Gunship was on display at Warhammer World. It was part of the The Battle of Khendrel IV diorama.
In this diorama at Warhammer World the Dark Angels are fighting to reclaim the industrial world of Khendrel IV from the clutches of the Death Guard.

The Thunderhawk Gunship is used by the Adeptus Astartes as their primary means of deploying forces for ground combat as well as their primary source of air support. The Thunderhawk gunship is often considered the lynchpin of any Space Marine Chapter, as it is able to fulfil many combat roles. The Thunderhawk is fully capable of functioning as an orbital drop ship, a heavy ground attack gunship, or as a bomber. The aircraft is able to quickly carry Space Marine forces from orbiting starships down into the midst of a battle, while at the same time providing supporting fire against enemy ground or air targets.
More photographs of The Battle of Khendrel IV.
More photographs of the Space Marine Thunderhawk Gunship.