The pitch angle is 2.0°, the angle of attack is 5.0°, the descent gradient is about %.
A: -8.75
B: -5.2
C: -3.5
D: -12.3
A: -8.75
B: -5.2
C: -3.5
D: -12.3
举一反三
- The pitch angle is 10.0°, the angle of attack is 4.3°, the climb gradient is about %. A: 8.0 B: 10.0 C: 12.5 D: 15.0
- 词汇与结构 There is, of course, a limit to how far the angle of attack can be increased, if a _____ is to be avoided.
- The factors affecting the lift of aircraft include angle of attack, air speed, airfoil shape and air density.
- What is the angle of repose? A: The angle of an inclined rock layer measured from a horizontal line B: The angle of the slip plane from a slide C: The angle of plunge into the interior D: The steepest angle at which a material remains at rest
- Using a right-hand hob with the lead angle ω cuts a left-hand gear with the helix angle β , hob swivel-setting angle δ is: A: ω B: β C: β-ω D: β+ω