PRACTICE PAPER #9 – WINGS
19/01/2018
2 – crossword solution:
ACROSS: 1 wake turbulence, 3 root, 5 flap, 8 walkway, 10 rib, 13 wing tip, 16 span, 17 trailing edge;
DOWN: 2 airfoil, 4 spar, 6 leading edge, 7 vortices, 9 aileron, 11 biplane, 12 winglet, 14 skin, 15 vortex
3 – reading comprehension
– they increase performance (by decreasing fuel burn and increasing range).
– they generate a forward lift component that opposes the drag produced by the wingtip vortices.
– when you are at high angles of Attack (during take-off and landing or at high altitude cruise).
– new technology allow to blend them into the wing,
4 – listening comprehension
runway 31R in the comment has become runway 41R in the subtitles.
5 – grammar
than, then, then, then, than, then, than, then, then, than