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The Official Guide to Flying a Traffic Pattern When you takeoff or land under VFR or Circle to Land IFR
proceedures, you will find yourself
utilizing the airport's traffic pattern. The traffic pattern is
not listed on any form of visual aid, but the type of traffic
pattern is indicated in the published Airport/Facilities
directory. There are two basic types of traffic patterns, a Left
pattern and a Right pattern. These patterns are very easy to
learn. A Left pattern is the standard traffic pattern, and is
employed at most airports. When you fly this pattern, all of your
turns are to the LEFT. A Right pattern is the non-standard
traffic pattern, and is used at airports with parallel runways or
that have noise abatement proceedures, obstacles, or some other
reason which the Right pattern is used. All turns in this pattern
are to the RIGHT. Pretty simple, eh? Let's talk more about what
elements make up a traffic pattern.
For training purposes, let's use a Cessna 152. Go to FlightSim.com and download one to try this out yourself for practice. Takeoff from the active runway and maintain the runway heading. Climb out at your normal climbing speed (For a C-152, that should be about 67 KIAS). Note the wind and make any changes as needed to maintain that heading. You are on the Upwind leg. At 300 feet below the Traffic Pattern Altitude (TPA), turn 90 degrees to the crosswind leg. note the wind, and correct as needed. Keep the climb coming up to TPA. After you've flown this heading for almost 1/2 NM, turn again 90 degrees and start your downwind leg. As you start this turn, you should be at or near the TPA. When you're established on downwind, adjust the throttle to normal cruise, note the winds, and maintain a straight heading. Do not refer to your instruments, use visual references to guide you, as it's much easier. Before you reach midfield, or the center of the active runway on your downwind leg, make sure your "Before Landing" checklist has been completed, pull out the carb heat (if you have it) and note the landing proceedures for your aircraft. Also make sure your landing lights are on. When you are "at the numbers" of the landing runway, pull the throttle back (For a Cessna 152, you'd want the throttle to be somewhere between 1500 and 1700 RPMs), slow your airspeed a bit (Again, for a Cessna 152, slow to 70 KIAS), drop a notch of flaps and the gear, and start a 500 FPM rate of descent. Check your VSI to confirm this and pick an outside reference to fly by. This is where the fun begins. Watch the position of your aircraft relative to the runway threshhold. When your aircraft is approximately 45 degrees from your intended landing point (the "numbers" as it may be called, being the numbers on the runway), turn 90 degrees again and establish yourself on your base leg. Note the wind and make sure your airspeed is constant. Once you're established on base, evaluate your position relative to the runway again. If you're too high, lower the nose. If you're too low, increase power and raise the nose to level out for a minute so you can reenter the descent for a landing. At this time, drop another notch of flaps and reduce your airspeed by 5-10 kts, depending on aircraft type (Your Cessna 152 should slow down to 65 KIAS). Keep watching your position from the runway, and when you find yourself to be about 10 degrees from the "numbers" and the final leg, turn onto final, making sure to check for any unannounced traffic that decided to make a lazy straight in landing without telling you. On final, set your final approach speed (In the C-152, that would be 60 KIAS, depending on the wind), set your flaps for landing, and evaluate your position. If you're on a higher than normal approach, reduce the throttle and lower the nose a bit. If you're too low, add power if needed. Whatever you do, do not retract the flaps unless you are aborting the landing and making a go-around. Once the flaps are down, they're like concrete. Section 3 -- Entering the Traffic Pattern
Pattern Entry for Non-Towered Airports
As mentioned above, this
proceedure can be used at towered airports as well. The standard
proceedure to enter a traffic pattern is to enter on the Downwind
or Upwind leg at a 45 degree angle. It's a good practice to
establish yourself on this "Forty Five" as it's called,
at about 2 NM out from the Downwind portion of the traffic
pattern. Once established, you should be at TPA prior to entering
the traffic pattern, and your airspeed should be at or below 200
KIAS. Prior to turning onto the Downwind or Upwind, keep an eye
out for other aircraft working the pattern. If you find yourself
about to cut off another aircraft already on the downwind,
execute a 360 degree turn for spacing until that aircraft has
passed you, then reenter the pattern. Please reference the
diagram below, as it may explain this proceedure in greater
detail.
Towered Airports At an airport with a control tower, you will find ATC who will help you enter the traffic pattern at the airport if you're flying under VFR rules. Along with the above mentioned technique, you may be instructed to enter the traffic pattern from a different direction. Sometimes ATC may clear you for a "straight in" where you fly straight to the runway, or maybe they'll ask you to enter directly on the base leg, or crosswind leg instead. Always have a diagram of the airport handy so you can orient yourself easily with ATC's instructions. Section 4 -- Departing the Traffic Pattern
If you wish to directly depart the pattern upon takeoff, use this rule of thumb: You must be at least 2 NM out or 500 feet above the TPA before you can legally leave the pattern. Once you have reached this point, 45 degree turns from the upwind leg can be commenced, and once you are clear of the airport area, you may turn on course. This assures that you are clear of other arriving traffic from the airport. You may also depart from the downwind leg of the traffic pattern. Once you reach the "midfield" point, make a 45 degree turn outbound until you have cleared the airport area, then you are free to resume your own navigation. Section 5 -- Traffic Pattern Operations and Operational Considerations
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