As an expert builder using the grace that God gave me, I laid the foundation, and someone else is building on it. But each person must be careful how he builds on it. According to the grace of God given to me, like a skilled master-builder I laid a foundation, but someone else builds on it.
The most-advanced helicopters can fly up to 300 miles before having to refuel. How long any particular helicopter can fly without refueling depends on the size, weight and age of the helicopter.
A helicopter is able to fly because of the lifting effect of its main rotor. The rotor blades of a helicopter act in the same manner as the wings of a plane, creating lift by â¦ forcing air above and below a curved airfoil. The air moves faster over the top of the blade, reducing the pressure there.