During all-engine-out rapid relight, wind within 30 degrees of the nose has what windspeed limit?

During all-engine-out rapid relight, wind within 30 degrees of the nose has what windspeed limit?

• A. No windspeed limit
• B. Less than 5 knots
• C. Between 5 and 30 knots
• D. Greater than 30 knots

Answer: (A)

The key idea is that during an all-engine-out rapid relight, the critical factor is getting sufficient inlet airflow to the engine to restart it, which is governed by the aircraft’s airspeed and engine start parameters rather than an external wind speed in a forward direction. When the wind is coming from within 30 degrees of the nose, it effectively adds ram air into the engine intake in a favorable way and does not impose a separate windspeed ceiling for the relight. In this forward arc, the relight procedure is designed to work regardless of how strong the wind is, as long as the aircraft is within the relight speed and altitude requirements. So there’s no windspeed limit for wind within 30 degrees of the nose. Other wind directions can introduce different considerations, but for this forward sector, no limit is specified.

The key idea is that during an all-engine-out rapid relight, the critical factor is getting sufficient inlet airflow to the engine to restart it, which is governed by the aircraft’s airspeed and engine start parameters rather than an external wind speed in a forward direction. When the wind is coming from within 30 degrees of the nose, it effectively adds ram air into the engine intake in a favorable way and does not impose a separate windspeed ceiling for the relight. In this forward arc, the relight procedure is designed to work regardless of how strong the wind is, as long as the aircraft is within the relight speed and altitude requirements. So there’s no windspeed limit for wind within 30 degrees of the nose. Other wind directions can introduce different considerations, but for this forward sector, no limit is specified.