What is the relationship between DP and SID?

What is the relationship between DP and SID?

• A. A DP is the same as a SID; navigation procedures used for initial route.
• B. A DP is an arrival procedure.
• C. A DP is for weather avoidance.
• D. A DP is a type of airspace.

Answer: (A)

A departure procedure (DP) is a published set of instructions that guides an aircraft from takeoff or initial climb out to the en route structure. A Standard Instrument Departure (SID) is a specific type of DP that provides a standard, instrument-guided initial route for IFR departures. So, in practice, a SID is a departure procedure; it is the particular, published route used to leave the airport efficiently and safely. The other options don’t fit because an arrival procedure is for landing, weather avoidance isn’t the purpose of a DP, and a DP isn’t a type of airspace.

A departure procedure (DP) is a published set of instructions that guides an aircraft from takeoff or initial climb out to the en route structure. A Standard Instrument Departure (SID) is a specific type of DP that provides a standard, instrument-guided initial route for IFR departures. So, in practice, a SID is a departure procedure; it is the particular, published route used to leave the airport efficiently and safely. The other options don’t fit because an arrival procedure is for landing, weather avoidance isn’t the purpose of a DP, and a DP isn’t a type of airspace.