What load factor is experienced by an aircraft in a coordinated level turn with 60 degrees of bank?
Why →
Load factor in a banked level turn = 1/cos(bank angle). At 60° of bank: 1/cos(60°) = 1/0.5 = 2.0 Gs. The aircraft structure must support twice the aircraft's weight. Stall speed also increases by the square root of the load factor. At 2G, stall speed is 41% higher than in straight-and-level flight.The trap →
1.41 Gs is the load factor at 45° bank (1/cos 45°). 60° of bank doubling load factor is a frequently tested specific numerical fact. Memorize it directly.SOURCE → PHAK Chapter 5, Aerodynamics of FlightCHECKED APR 21ACS IV.A.K1MED