I frequently hear the tower instruction
Report a two mile base for runway 5
What is the intention of that instruction? I realize that under these circumstances that we're not looking for pinpoint precision, but still it would be nice to know.
For the record, I'm not asking what a base is (or the fact that "left" is implicit), but what two miles are we talking about? Two miles straight line distance from the threshold? A base to a two mile final? On the base leg, two miles from the centerline? (I'm pretty sure the last one isn't it, but hey, I've been wrong before)
They basically ask you to report it as a "memory jogger" for themselves so that they can do something when you call in (like clear you to land).
A standard airport traffic pattern is described in Chapter 7 of the Airplane Flying Handbook as:
The downwind leg is a course flown parallel to the landing runway, but in a direction opposite to the intended landing direction. This leg should be approximately 1/2 to 1 mile out from the landing runway, and at the specified traffic pattern altitude. During this leg, the before landing check should be completed and the landing gear extended if retractable. Pattern altitude should be maintained until abeam the approach end of the landing runway. At this point, power should be reduced and a descent begun. The downwind leg continues past a point abeam the approach end of the runway to a point approximately 45° from the approach end of the runway, and a medium bank turn is made onto the base leg.
It looks like this:
When the tower asks you to fly a two mile pattern, they want you to fly a pattern that has the downwind leg 2 miles out from the runway instead of the 1/2 to 1 mile that is normal. The base leg would still be turned when 45° from the approach end of the runway.
In this case, you are either:
I frequently hear the tower instruction Report a two mile base for runway 5 What is the intention of that instruction? I realize that under these circumstances that we're not looking for pinpoint precision, but still it would be nice to know. For the record, I'm not asking what a base is (or the fact that "left" is implicit), but what two miles are we talking about? Two miles straight line distance from the threshold? A base to a two mile final? On the base leg, two miles from the centerline? (I'm pretty sure the last one isn't it, but hey, I've been wrong before)
and told him about it because I was told to "report 3 miles out", not "report 3 mile base." I completely understand that I made my base leg too wide and that caused me to deviate from an ATC instruction..., I established contact with the tower and was told to "enter left base, runway 7, report 3 miles out." I interpreted the "report 3 miles out" as to give the tower a call when I was 3 miles away from... apparently I made it a little too wide because the GPS did not indicate I was 3 miles from the field until I was on final. At this point, I called the tower, reported I was on a 3 mile final and was given
are two examples of situations where it would be very useful, and both are real life clearances that I have gotten multiple times: Example 1 - KASE Clearance: N1234, Cleared for the VOR/DME-C approach, cleared to land runway 15 If you follow the step downs until the final approach fix (ZIGBU) you will be at 2,983 ft. above the runway (10,820 ft. MSL) with 2.9 miles to go (9.61 degree... Runway 6 Circle Runway 1 Approach, cleared to land runway 1 If I fly the ILS (localizer and glideslope) until reaching circling minimums, especially in a category C or D airplane
to another airport that is within 25 nautical miles from the airport where the student pilot normally receives training The student must be endorsed with something along the lines of: I certify that (First name, MI, Last name) has received the required training of section 61.93(b)(1). I have determined that he/she is proficient to practice solo takeoffs and landings at (airport name... (b) Authorization to perform certain solo flights and cross-country flights. A student pilot must obtain an endorsement from an authorized instructor to make solo flights from the airport where
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