Where is Vietnam helicopter pilots memorial

It is located in section 35, near the Tomb of the Unknown Soldier.

Tony's correct it is not far from the Tomb of the Unknown Soldier. You can view it on a map or generate walking directions from any other point in the cemetery online at https://ancexplorer.army.mil/ or via our mobile app, ANC Explorer. The commemorative tree monument is one of several hundred monuments and memorials located at the cemetery.

Thanks, this info should be shared with the police department as none of the officers we spoke to had any knowledge of the memorial.