Here is an autocad dwg file for details of Heliport--electrical installations. There is a presentation plan layout with all the electrical fitting and proper detailing of the installations.
Airport building structure
International airport of B
Airport distribution plan,
Helicopter station design
Airport terminal first and
Airport terminal layout pl
Airport top view construct
Sectional view of front si
Airport building detail CA
Commercial airplanes desig
2d cad drawing of airport