Energy Source Requirements Part 2 – Aircraft Configuration & Range

Configuration for maximum range ensures maximum distance for the amount of on-board fuel, or alternatively –  to determine the least amount of fuel for the distance to be travelled!

Maximum endurance flying (as opposed to maximum range) is undertaken when the pilot wishes to remain airborne for the maximum time possible given a set amount of fuel. Waiting your turn to land, or waiting for a break in the weather so you can land are examples of this condition.

To achieve maximum flying range the aircraft must be configured for and operated to achieve maximum efficiency. This is achieved by:-

• Reducing take-off weight. Lower weight required less power.
• Considering wind speed. (A tailwind can increase range)
• Considering air temperature. Warmer air is less dense, and required more power.
• Achieving a higher altitude. This increases range, but not endurance.
• Considering aircraft configuration. Keep drag as low as possible.

Revise decision making from Human Factors!