To: (Separate email addresses with commas)
From: (Your email address)
Message: (Optional)
Send
Cancel

Thanks!

Close

What is a MTA under IFR?

minimum turning altitude mta ifr

What is a Minimum Turning Altitude, MTA?

An MTA is just that, the minimum altitude at which you are allowed to turn at when flying along airways.  This applies to aircraft flying at 10,000′ and above, where there is no speed limit and True Airspeeds can often be in excess of 400 knots.  With an airspeed of 290 knots or greater, you run the risk of overshooting the protected area of the airway since the radius of turn will be so large (and you only have 4nm of protection on either side of the airway).

For example, a flight operating at 17,000 feet MSL with a TAS of 400 knots, a 25 degree bank, and a course change of more than 40 degrees would exceed the width of the airway or route; i.e., 4 nautical miles each side of centerline.

Turning fixes requiring a higher minimum turning altitude (MTA) will be denoted on government charts by the minimum crossing altitude (MCA) icon (“x” flag) and an accompanying note describing the MTA restriction. An MTA restriction will normally consist of the name of the route leading to the turn point, the name of the route leading from the turn point, and the required altitude; e.g., MTA V330 E TO V520 W 16000. When an MTA is applicable for the intended route of flight, pilots must ensure they are at or above the charted MTA not later than the turn point and maintain at or above the MTA until joining the centerline of the ATS route following the turn point.

Once established on the centerline following the turning fix, the MEA/MOCA determines the minimum altitude available for assignment. An MTA may also preclude the use of a specific altitude or a range of altitudes during a turn. For example, the MTA may restrict the use of 10,000 through 11,000 ft MSL. In this case, any altitude greater than 11,000 ft MSL is unrestricted, as are altitudes less than 10,000 ft MSL provided MEA/MOCA requirements are satisfied.

minimum turning altitude chart

Still Have Questions?

Ask our CFII’s in the Forums with the link at the top of the page!

ifr pilot ground school

Subscription Options

  • All of the Free Features Included
  • Track Your Progress
  • Unlimited Retakes of Courses
  • Access to Premium Private Pilot Ground School
  • Rusty Pilot Course
  • Crosswind Landings
  • Alaskan Pilot Ground School
  • Free One-on-one Oral Prep
  • Checkride Prep Material
  • Costs Less then an Hour of Airplane Rental, and You're Guaranteed to Pass Your Exam!
  • Everything from Flight Engineer Level Included
  • PPL | IFR | CPL | CFI
  • Access every course we offer!
  • Get live support 7 days/ week
  • Professional Pilot MasterClass
  • Free One-on-one Oral Prep
  • Lifetime Access!
  • All Benefits from First Officer Level Included
  • Custom, One-on-one Live Checkride Prep with One of our CFI's for up to 3 of your Checkrides
  • Guaranteed To PASS Your Checkride, or I'll Pay For It
  • Access all of our courses you see on the site for life (over 25 courses)!
  • FREE FLY8MA T-shirt!

Jon K

Jon is a CFI, CFII, MEI, ATP, AGI, and the rest of the alphabet. He started instructing for fun part-time to be able to give back to the GA community after earning his Commercial and CFI back in 2013. He has a strong background in academia, starting his career at the University of Michigan, and now is pursuing his dreams of flying, both for the airlines and teaching as a CFI on his days off.

Recommended Stories

  • Can Water Really Cool to -55 Degrees Before Freezing? Um, well, yup it can.  When water exists as a liquid below 32 Fahrenheit (0 Celsius), it is referred to as “Super Cooled”.  When it exists at these super cool temperature in the atmosphere as little droplets inside clouds, it is referred to as SLD or […]
    • Jon K
    • December 28, 2017
  • FLY8MA Flight Training Releases Free Private Pilot Online Ground School Becoming a pilot just got a whole lot easier!  Jon @ FLY8MA.com just released a completely free online ground school for sport and private pilots.  It is totally free for anyone to signup and start taking the course!  Our Online Private Pilot Ground School promises […]
    • Jon K
    • November 29, 2017
  • When Can You Log an Instrument Approach? The FAA issued INFO 15012 (Information for Operators) to help us understand exactly when you can and cannot log an instrument approach for the purpose of instrument currency or training.  Under any scenario, the pilot logging instrument currency/training must be flying solely by reference to instruments (obvious I […]
  • Aeronautical Decision Making, Crew Resource Management, Single Pilot Resource Management While these might be big fancy titles, the actual concepts they represent are actually much more simple, and probably something you already do to some extent subconsciously.  The whole idea behind these concepts is to reduce GA accidents.  The diagram above shows where GA accidents […]

Latest Stories

  • They entered and flew below the canyon walls. Although the Private Pilot had flown through this canyon once before; it was with a flight instructor,  in the opposite direction of travel, and in a slower airplane. Approximately two miles into the canyon, they encountered a tight turn, which the pilot was not able to successfully navigate.  The aircraft impacted terrain about 500 ft above the river, and 200 ft below the canyon wall. 
  • The Federal Aviation Administration issued a notice on Friday stating that they will not be enforcing medical certificate currency for pilots whose medical expires after March 30th. Pilot medicals of any class that expire after this date can be used until June 30th, with no enforcement action or penalty. The FAA stated that it made […]
    • CFI
    • March 29, 2020
  • The Federal Aviation Administration recently rolled out a new system to schedule FAA knowledge tests. Check out our new YouTube video above to learn how to obtain your FTN number and schedule your written, hassle free!
    • CFI
    • March 25, 2020
  • Are you getting ready for your CFI checkride? We are introducing a new CFI LIVE series to help you get the answers you need to be prepared! Be sure to leave your CFI questions in the YT comments for our next CFI Live series video! 
    • CFI
    • February 12, 2020
  • So whether you are currently a Sport Pilot, or simply working towards your sport pilot and decide you want to go for the full private pilot certificate.  The process really is quite simple, and we’ll cover both scenarios for you below. If you are currently a Sport Pilot: Converting a current Sport Pilot certificate to […]
  • Now flying on the airlines is stressful enough, and a nice cup of tea or coffee once you sit down on the plane might make you feel better, but this is why you should never EVER drink the coffee or tea on any airliner, anywhere! Let’s start with where the water comes from. It comes […]
  • Little Delta makes it into Anacortes, Washington! Even though I have cleared customs in Bellingham (KBLI) several times, there’s always something that goes wrong or a little mistakes are made. This time it was the phone call you have to make at least two hours prior to crossing the border to make sure the customs […]
  • Sign up to become a FLY8MA Affiliate and earn money for the friends you refer to FLY8MA!
    • CFI
    • March 18, 2019
  • The days are getting shorter and the time change didn’t help our trip into Canada. There are several steps you have to do in order to leave the US and head into Canada, though I found out from past experience this leg is more lenient that going the other way around. Our plan was to […]
  • Hi Jon, genuinely​ appreciate your video and great explanation. For my further understanding, I’d like to ask you a question regarding the missed approach procedure. Having referenced the AIM, I note that there is no ‘published missed approach’ on a visual approach. Wouldn’t it be prudent upon the first contact with the control tower, to […]
Share on Twitter

@

Not recently active