4 ms·
Thrust was applied equally in the cockpit, but jet engines don't respond immediately and don't spool up in sync. Normally that's not an issue because you're not
by joshAg 7y ago
Thrust was applied equally in the cockpit, but jet engines don't respond immediately and don't spool up in sync. Normally that's not an issue because you're not making large adjustments in short spans of time, you can use various control surfaces to compensate for the brief asynchrony, and you're far enough away from the ground to have room to maneuver.
If you remember the Korean airlines flight that crashed at SFO a few years back, the spool up time for the engines came into play as well. The pilots noticed the issue with too little time for the engines to deliver more power before the plane crashed.
- mlyle 7y agoYah. The thing is, long-period oscillation modes (phugoid, etc) exist in aircraft but are so readily controlled by pilots with conventional controls that they mostly don't matter from a certification standpoint (and would be difficult to avoid, anyways). But jet engines are slow enough that any significant control of 10-30s period oscillations with engine thrust alone would be a real, real challenge.