Plans for a new helipad at Plymouth's Derriford Hospital have been put forward by the region's NHS bosses.
Helicopters currently have to land on nearby playing fields and patients are then transferred by land ambulance.
If approved, the landing pad would be able to accommodate coastguard and military aircraft, as well as smaller air ambulances.
The Department of Health said Derriford needed an upgraded facility because it was a major South West trauma centre.
Some trees would have to be cut down in the proposed flight path, the application said.
The plans have yet to be considered by the city council.