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10 Ιαν 2018 · At low airspeeds, induced drag is the dominant factor: this is the drag that is proportional to lift and weight. At cruise speeds, induced drag drops off and parasite drag rises quadratically with airspeed. It is drag associated with the aerodynamic shape of the aircraft.
We know that in cruise since lift must equal weight, we can select a design value of cruise lift coefficient (commonly around 0.2 to 0.3) and a desired cruise speed and altitude and solve for the needed wing area. S = 2W/ (ρV2CL)
20 Μαρ 2023 · In the context where cruise speed plays a role in airlines' costs, market competition, and business models, this study proposes an econometric model that: (1) analyzes whether airlines plan...
Formula: Ground Speed (GS) (knots) ÷ 60 * Climb Gradient (Feet Per Mile) Example: Ground Speed = 75 knots; Climb Gradient Required = 200 feet per mile; Calculate: 75 ÷ 60 * 200 = 280 feet per minute climb rate required
Cruise is the predominant phase of flight by time, making cruise performance one of the most influential factors on the duration and quality of a flight. With appreciation of the drag curve, pilots configure and fly the aircraft to achieve maximum range or maximum endurance.
Bolic et al. proposed two models, the shortest time route model and the lowest cost route model, which were solved using the minimum displacement objective function and the minimum cost...
24 Αυγ 2021 · M. V. Khlebnikov. 149 Accesses. 5 Citations. Explore all metrics. Abstract. We consider the problem of minimizing the fuel consumption of subsonic passenger and transport aircraft at the cruise flight phase. An optimization problem is stated to form the altitude and speed flight profile.
