Endurance performance

The maximum endurance is obtained at a flight condition that results in the lowest fuel flow rate or minimum fuel consumption. The basic theory is simple: for constant SFC the fuel flow rate (G) is directly proportional to power required and therefore the

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Fig. 3.8 Flight conditions required for optimum range performance (5500 kg).

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RANGE PERFORMANCE (VIP)

Fig. 3.9 Achievable range performance.

true airspeed for maximum endurance (VME) occurs at the speed for minimum power, see Fig. 3.10.