Discussion
Which lateral characteristic is most degraded by carrying heavy stores at the wing tips?
Answer: A
Mass far out along the span raises rolling inertia with the square of the distance, so the roll response becomes sluggish: the time constant lengthens and the rate achieved for a given aileron moment falls. That is why roll performance is quoted per store configuration. Dihedral effect is aerodynamic and largely unchanged by the mass. Yawing inertia rises far less than rolling inertia for tip stores. And a faired store still has its mass.
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