76
The pilot actuates the elevator and ailerons by use of a control yoke. Rotating
the yoke to the left and right moves the ailerons and spoilers. Moving the yoke
forward and aft deflects the elevator for pitch control. Next to the pilot's feet are
pedals to deflect the rudder. The rudder pedals also turn the nosewheel used for
steering while on ground taxi. At the top of the rudder pedals are toe brakes used to
stop the aircraft's ground roll.
It may sound as though the flight deck is a confusing place of levers, yokes and
pedals, but the controls have been so exquisitely constructed that their use becomes
very natural with practice. As you can see, the aircraft has been designed with the
highest priority placed on passenger comfort.
13.4. EXERCISES
1. Ответьте на вопросы.
1.
How can an aircraft rotate?
2.
Why must an aircraft bank?
3.
How does an aircraft roll about its longitudinal axis?
4.
What is yawning motion? Why does an aircraft rotate about its yaw motion?
5.
Why does the nose pitch up and down about the lateral axis?
6.
What are the types and functions of ailerons?
7.
Where are spoilers located? What are they used for?
8.
What are the flight controls on the tail?
9.
What does the elevator provide?
10.What is the rudder used for?
11.How does a pilot actuate the elevator and ailerons?
12.How to deflect the rudder?
2. Переведите текст 13.5. без словаря.
13.5. ТEXT
LOCKHEED 117A STEALTH FIGHTER
Primary Mission: Deep Penetration / Strike
First flown in June 1981, this is a highly classified stealth reconnaissance
attack aircraft, of which some 56 are in operation with the USAFs 4450
th
Tactical
Group at Nellis AFB Nevada. The F-117A features a radar absorbent airframe* ,
twin canted tailfins * to help mask the above fuselage engine nozzles, and internal
weapons bay, and a flush cockpit. The aircraft cannot use radar because of its stealth
mission, so navigation is by the Global Positioning System.
•
Crew: one pilot;
•
Powerplant: 2 General Electric F404-GE-400 turbofan engines (unknown rating);
•
Max Level Speed: unknown;
•
Range: unknown;
