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.
If you have fixed wing flying experience, you can earn your helicopter license with fewer total flight hours. If you have exceeded 65 hours of pilot-in-command time in an airplane, your required flight time to earn your helicopter endorsement is reduced from 150 to between 80 and 90 hours.