Discussion
At high cruise altitude the Dutch roll damping of an unaugmented aeroplane generally
Answer: B
The yaw damping and side-force derivatives both carry a factor of dynamic pressure, which falls with density at a given Mach number, so the damping ratio degrades as the aeroplane climbs. Combined with sweep, this is why the yaw damper matters most in the cruise. Higher true airspeed does not rescue it. Fixing Mach number fixes neither density nor dynamic pressure. And the mode does not turn aperiodic; it simply oscillates for longer, which is precisely the complaint.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development