Trend: Mass

081 Principles of Flight. 12 items. Source: 081 02, 081 03.

Answer the items in a row. One wrong answer resets the streak, and the item you missed returns in your review queue until you get it right.

Three items from this drill

Mass increases – straight and level. What happens to Stall speed (IAS)?

Increases – Vs ∝ √mass. +10 % mass ≈ +5 % Vs.

Mass increases – straight and level. What happens to Critical angle of attack?

Unchanged – The stalling angle depends on the wing, not on mass.

Mass increases – straight and level. What happens to Minimum drag speed Vmd (IAS)?

Increases