What is the minimum altitude for a flight plan?

Minimum Altitude for Flight Planning

Flight planning is an essential aspect of aviation safety, as it ensures that flights are conducted in a manner that minimizes risks to the aircraft and its occupants. One of the key elements of flight planning is determining the minimum altitude at which an aircraft can fly.

According to the Canadian Aviation Regulations (CARs) 602.14 to 602.16, aircraft must maintain a minimum altitude of 500 or 1,000 feet above the highest nearby obstacle. This regulation applies to all aircraft, regardless of their size or purpose.

The 500-foot minimum altitude applies to aircraft operating below 1,000 feet above ground level (AGL). For aircraft operating at or above 1,000 feet AGL, the minimum altitude increases to 1,000 feet above the highest nearby obstacle.

There are a few exceptions to these minimum altitude requirements. These exceptions include:

• Takeoff: Aircraft are permitted to descend below the minimum altitude during takeoff and climbout.
• Approach: Aircraft are permitted to descend below the minimum altitude during approach and landing.
• Landing: Aircraft are permitted to descend below the minimum altitude during landing and rollout.

When determining the minimum altitude for a flight plan, pilots must consider the following factors:

• Terrain: The altitude of the surrounding terrain, including any obstacles such as mountains, hills, or buildings.
• Air traffic: The presence of other aircraft in the area, which may necessitate higher altitudes to maintain separation.
• Weather: The visibility and cloud cover, which may impact the pilot’s ability to see and avoid obstacles.

By carefully considering these factors, pilots can determine the minimum altitude that will ensure a safe and efficient flight. Failure to maintain the minimum altitude can result in a violation of CARs and may put the aircraft and its occupants at risk.