Sikorsky multi-purpose transport helicopters fly in the usa, japan and even in antarcticaSikorsky multi-purpose transport helicopters fly in the USA, Japan and even in Antarctica
Comparison of the size of helicopters on the desktopComparison of the size of helicopters on the desktop
The refueller refuels two helicopters in the air at the same timeThe refueller refuels two helicopters in the air at the same time