Question

For your selected aircraft, research and present the following information in your instructional presentation:

1. Selected aircraft – Boeing 787 (Dreamliner)
2. Maximum takeoff weight (MTOW) – 557,000 lbs
3. Engine type, number, and rated thrust, as well as total available thrust (sum of all engines) – 2 General Electric, GEnx-1B / Trent 1000, rated thrust; 64,000 lbf, total thrust; 128,000 lbs
4. Takeoff distance at MTOW – 8,500 ft

Utilizing the above-researched information, derive and present (in an instructional way) approaches and solutions to the following problems:

1. If your selected aircraft's takeoff speed at MTOW was assumed to be 150 kts (i.e., the speed that is reached in the above-researched takeoff distance), explain how to find and determine:
   1. The total acceleration a [ft/s²] during the takeoff roll
   2. The sum of retarding forces F_R [lb](drag + friction) that was present during takeoff
   3. The time t [s] it took for this takeoff
2. Given the researched knowledge about the aircraft's thrust, explain for a specific airspeed example how to determine the power P [HP].
3. For a specific example related to your researched aircraft data, explain how to determine potential E_Pot [ft-lb], kinetic E_Kin [ft-lb], and total energy E_Tot [ft-lb].
4. For a specific example, explain how the minimum required climb angle AOC [deg] to clear an obstacle can be calculated from knowledge about the obstacle's height and its distance from the point of takeoff.

Answer 1