What is the aft CG limit in inches?

Prepare for the UND Certified Flight Instructor Test. Explore our quiz with detailed explanations, flashcards, and multiple-choice questions. Boost your confidence and be ready!

Multiple Choice

What is the aft CG limit in inches?

The main idea here is that the aft CG limit is the furthest aft the airplane’s center of gravity can be placed while still guaranteeing safe controllability, especially at low speeds and in stall or pitch situations. Pushing the CG too far aft reduces stability and elevator authority, making it hard to raise the nose, recover from a stall, or maintain control. For this aircraft, the maximum aft position allowed is 93 inches from the datum. That’s the boundary you must not exceed; staying at or in front of that distance keeps you within the design’s safety margins. Values smaller than this (e.g., 88.6 or 90) would be more forward and still safe but not the maximum limit, while a value like 95 would exceed what the airplane is certified to handle and could compromise controllability.

The main idea here is that the aft CG limit is the furthest aft the airplane’s center of gravity can be placed while still guaranteeing safe controllability, especially at low speeds and in stall or pitch situations. Pushing the CG too far aft reduces stability and elevator authority, making it hard to raise the nose, recover from a stall, or maintain control.

For this aircraft, the maximum aft position allowed is 93 inches from the datum. That’s the boundary you must not exceed; staying at or in front of that distance keeps you within the design’s safety margins. Values smaller than this (e.g., 88.6 or 90) would be more forward and still safe but not the maximum limit, while a value like 95 would exceed what the airplane is certified to handle and could compromise controllability.

More practice questions