Which speed is the maximum turbulent air penetration speed?

Which speed is the maximum turbulent air penetration speed?

• A. 149 knots
• B. 104 knots
• C. 95 knots
• D. 70-80 knots

Answer: (B)

In turbulent air you want a speed that minimizes gust loads while keeping control authority. This is the turbulence penetration speed, effectively the maneuvering speed of gust conditions, and it depends on the aircraft’s weight and configuration. For this aircraft at the given weight, about 104 knots provides the best balance: it’s fast enough to avoid losing control or stalling in gusts, but not so fast that gusts produce excessive structural loads. The other options are less suitable: speeds much slower risk approaching stall or reducing control effectiveness in turbulence, while speeds much faster would increase gust-related stresses beyond what the airframe should safely handle.

In turbulent air you want a speed that minimizes gust loads while keeping control authority. This is the turbulence penetration speed, effectively the maneuvering speed of gust conditions, and it depends on the aircraft’s weight and configuration. For this aircraft at the given weight, about 104 knots provides the best balance: it’s fast enough to avoid losing control or stalling in gusts, but not so fast that gusts produce excessive structural loads.

The other options are less suitable: speeds much slower risk approaching stall or reducing control effectiveness in turbulence, while speeds much faster would increase gust-related stresses beyond what the airframe should safely handle.