|1. Q. What does each of the following ATC instructions require?
“Resume Normal Speed”: Cancels ATC issued speed restrictions and instructs pilot to return to normal aircraft speed where no restrictions are published. This does not relieve the pilot of those speed restrictions which are applicable to 14 CFR Section 91.117.
“Comply With Speed Restrictions”: Requires aircraft joining or resuming a procedure to comply with published speed restrictions.
“Resume Published Speed”: Cancels ATC issued speed restrictions. Pilot is expected to comply with speeds published on the SID/STAR.
“DeleteSpeedRestrictions”: Cancelspublishedspeedrestrictions. Esta no .
2. Q. I am on an ATC assigned vector and have been issued a speed assignment. Subsequently, ATC clears me direct to a waypoint on a SID and instructs me to “Climb Via” SID. What speed do I maintain? A. If the controller did not provide any additional “qualifying” instructions, such as “maintain two hundred fifty knots until (WP Name),” you may adjust speed at your discretion, but are required to comply with any upcoming speed restrictions. Esta no .
3. Q. Just after crossing a speed restricted fix of 280 KT on a STAR, ATC assigns me a heading and altitude to maintain, what speed should I maintain? A. The published speed is cancelled. Speed is at pilot’s discretion unless ATC has assigned a speed. Está no .
4. Q. What is 91.117? A. Sec. 91.117 — Aircraft speed.
(a) Unless otherwise authorized by the Administrator, no person may operate an aircraft below 10,000 feet MSL at an indicated airspeed of more than 250 knots. Esta no .
5. Q. Just after crossing a speed restricted fix of 230 KT on a SID, ATC assigns me a heading and altitude to maintain. However, what speed should I maintain? A. In this case, you have passed the waypoint with the published speed restriction. You can accelerate up to 250 KIAS below 10,000 feet MSL. If you are re-cleared on the SID, comply with any published speeds, unless the controller advises you to “delete speed restrictions,” or assigns you a speed to maintain.
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6. Q. I am established on a STAR. The controller clears me to “descend via” the STAR, followed by “maintain three hundred knots until ZUMBA.” ZUMBA has a published speed of 280 KTS. Do I cross ZUMBA at 300 KTS or the published 280 KTS? A. In this scenario, the controller specifically wants you to cross ZUMBA at 300 KIAS. After ZUMBA, you are then expected to comply with any subsequent restrictions. Está no.
7. Q. I am on an ATC assigned vector and have been issued a heading and altitude to maintain. Subsequently, ATC clears me direct to a fix on a STAR, followed by “descend via” the STAR. The direct to fix has published altitude and speed restrictions. Do I need to comply with the speed restriction in addition to the published altitude at the fix? A. YES. However, if the controller did not provide any additional “qualifying” instructions, such as “maintain three hundred knots until (WP Name),” you may adjust speed at your discretion; but are required to comply with speed restriction published at fix specified in the “direct-to” clearance along with any upcoming published speed restrictions. Esta no .
8. Q. I am on a STAR in level flight. The controller instructs me to “maintain three zero zero knots.” Later, the controller clears me to “Descend Via” the STAR. I understand that I now have to comply with any published speeds on the STAR, but what speed do I maintain until the first constraint?
A. If the controller did not provide any additional “qualifying” instructions, such as “maintain three zero zero knots until (WP Name),” you may adjust speed at your discretion. However, you should not make excessive speed variations without advising ATC. Esta no .
9. Q. ATC issues me a “descend via” clearance, followed by “maintain two - eight zero knots.” Does this cancel any upcoming speed restrictions?
A. YES. ATC expects you to maintain the assigned speed, until instructed to “resume published speeds” or “delete speed restrictions.” However, you are not relieved from complying with 14 CFR Section 91.117. Está no.
10. Q. I am “descending via” a STAR and the controller later instructs me to “maintain two five zero knots.” Subsequently, I am handed off to another frequency. There is a 210 KT speed restriction ahead. Should I plan to comply with it? A. NO. A controller’s instructions to “maintain” a speed cancels any subsequent speeds. However, on initial contact, you should advise the controller you were assigned 250 KTS. Esta no .
11. Q. I am currently flying a STAR (or SID) without published altitudes, but it does have a published speed restriction. Am I required to comply with it, even though the controller has not instructed me to do so? A. YES. You are always required to comply with published speeds if the STAR (or SID) is part of your ATC clearance. As a reminder, published altitudes are not authorized unless you have received a “descend via” or “climb via” clearance. Está no .
12. Q. The procedure I am established on has an “EXPECT” speed . Should I comply with it?
A. NO. “EXPECT” speeds (and altitudes) are for planning purposes and are not required unless the
ATC issues the speed. Esta no .
13. Q. How do I comply with published speeds on a departure? A. Think of each published speed restriction as a “DO NOT EXCEED” speed limit until you have crossed the associated waypoint. You may then accelerate so as not to exceed the next speed restriction (if applicable). After meeting the last published speed, accelerate per 91.117 and/or the appropriate speed profile for your aircraft. Esta no .
14. Q. How should I comply with published speeds on a STAR? A. Treat each published speed as a controller issuing you the speed at the waypoint associated with the speed restriction. ATC’s expectation is that you will decelerate at the appropriate distance, commensurate with normal aircraft deceleration characteristics, in order to cross the waypoint at the published speed. Ten knots of speed reduction per nautical mile is a general rule of thumb to use. It is not expected that the pilot will maintain speed until the last possible moment and then use all available deceleration devices to rapidly slow to meet the speed restriction. Esta no .
15. Q. What if I cross a waypoint with a 280 KT restriction, followed by a 250 KT restriction 20 miles ahead. Can I begin slowing to 250 KIAS right after meeting the 280 KT restriction. A. NO. Published speeds are generally used to provide predictable traffic flows for ATC. It is important for pilots to slow the aircraft a reasonable distance from the next restriction. Excessively early speed reductions can cause spacing compression and a potential loss of separation for controllers. Esta no .
16. Q. The last published speed on the STAR is 210 KT. After I cross the speed restriction waypoint, can I go ahead and slow at my discretion?
A. NO. On a STAR, the last published speed is the same as a controller assigning you the speed. You should not decelerate until the controller has cleared you for an approach or authorized you to slow. You should always request a slower speed, if operating conditions dictate. Note: Be cognizant of the 200 KT maximum speed permissible when operating below the floor of Class B Airspace – 14 CFR 91.117. Está no .
17. Q. I’m established on the STAR. The en route controller (ARTCC) assigned me a Mach of .75. Later, I receive a “descend via” the STAR. Can I fly the speed I choose until the first published speed restriction? A. YES. If the controller did not provide any additional “qualifying” instructions, such as “maintain Mach point seven-five until (WP Name),” you may adjust speed at your discretion; but are required to comply with any upcoming published speed restrictions. However, you should not make extensive speed variations without advising ATC. Esta no .
18. Q. My company uses a FMS Cost Index as part of our fuel savings program. The descent speed for my aircraft Cost Index is 252 KIAS. I received a “descend via” clearance and the first published speed is 280 KT. Can I fly my Cost Index speed, since it doesn’t exceed the 280 KT published speed? A. NO. All published speeds are mandatory, unless otherwise cleared by ATC. You must take the necessary actions to meet the published speed. Note: If the first published speed on the arrival is higher than your Cost Index descent speed, plan to transition to the published speed out of your Mach descent speed. Esta no .
19. Q. My company uses a descent speed of 290 KIAS for the aircraft I fly. The first published speed on the STAR is 270 KT. Can I use my company descent speed? A. NO. You have to comply with all published speeds, unless otherwise cleared by ATC. Esta no .
20. Q. My aircraft’s MMO/VMO (e.g. VMO = 250 KIAS) is below a speed restriction published on the STAR (e.g. (WP Name) At 280 KT), or because of a MEL/CDL limitation, I am unable to comply with a speed restriction published on a STAR. Am I prohibited from flying the STAR? A. NO. However, ATC may query you concerning the speed approaching the restriction. Advise the controller of the need to maintain the lower speed. Esta no .
21. Q. The controller had issued a speed for me to maintain. Later, the controller says “resume normal speed.” Can I fly a speed at my discretion? A. Yes, but a controller can only issue that clearance if you are not on a published portion of a procedure that contains speed restrictions. If there are published speeds, the correct clearance would be “delete speed restrictions” or “resume published speeds.” Esta no .