The most economical angle in terms of fuel use/range is the one which produces

1. The best ratio of carrier power to resist - that the most economical approach angle increases with the mass of the airplane and the flight altitude
2. ✓The best ratio of carrier power to resist - that the most economical approach angle is fixed for each combination of altitude and aircraft weightCorrect answer
3. The best ratio of lift to the string
4. The best value for the resistance forces

Explanation

The most economical flight condition for range corresponds to the maximum Lift-to-Drag ratio (L/D max).

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