Definition
A handling error in which the pilot makes abrupt, jerky, or excessive control inputs rather than smooth, measured ones. When applied to the elevator in level flight, rough control technique causes erratic vertical speed indicator (VSI) readings that do not accurately reflect the airplane's true rate of climb or descent.
Plain English
Flying with sudden, harsh control movements instead of smooth, gentle ones. This kind of handling makes the VSI bounce around and give misleading readings.
Context Anchor
Seen when discussing VSI indications, especially why the needle may lag, swing, or fail to settle during climbs and descents.
Why Pilots Care
Rough inputs produce erratic VSI indications, altitude deviations, passenger discomfort, and higher pilot workload.
Grounding Statement
If the airplane is being moved abruptly, the VSI will often show abrupt or unsettled changes too.
Intuition Check
Rough does not mean the air is rough here. It means the pilot’s control movements are rough—too sudden, uneven, or forceful.
Example Sentence 1
The instructor pointed out that rough control technique on the yoke was causing the VSI to fluctuate wildly during the climb.
Example Sentence 2
Smooth inputs replaced the pilot's earlier rough control technique, stabilizing the descent rate on the instrument.