Ten airport signs, markings, and lights all pilots should know

Taxiing at larger airports can add new complexities to your flight, especially when visiting an unfamiliar airport for the first time. Here’s a review of ten airport signs and pavement markings you might encounter during ground operations at a busy airport.

Runway Safety Area with Engineered Material Arresting System (EMAS)

Name
Runway Safety Area with Engineered Material Arresting System (EMAS)

Purpose

The Runway Safety Area is typically 500 feet wide and extends to a maximum of 1,000 feet beyond each end of the runway. It provides a graded area in the event that an aircraft overruns, undershoots, or veers off the side of the runway. EMAS uses crushable material placed at the end of a runway to stop an aircraft that overruns the runway. The tires of the aircraft sink into the lightweight material and the aircraft is decelerated as it rolls through the material. This is currently installed for 117 runway ends at 69 airports in the United States.

What do these markings indicate?

The yellow chevrons indicate the area is to be used for emergencies only, and not for taxi, takeoff or landing.


Runway Distance Remaining

Name
Runway Distance Remaining

Purpose

Distance remaining signs are located along the sides of runways at 1,000 feet increments. These signs can give a pilot indications that the landing or takeoff is performing as expected or if an abort might be appropriate.

What does this sign indicate?

There are 4,000 feet of remaining runway left from the current position.


Runway Status Lights (RWSL)

Name
Runway Status Lights (RWSL)

Purpose

This fully automated advanced alerting system uses embedded lights in the runway to alert pilots when it is unsafe to enter, cross or takeoff from a runway.

What do these lights indicate?

This is an example of Takeoff Hold Lights, which are red due to an aircraft currently clearing the runway up ahead.


Runway/Taxiway Location Signs

Name
Runway/Taxiway Location Signs

Purpose

Taxiway location signs are black with a yellow border and numerals. They are used to identify taxiways or runways on which the aircraft is located. A yellow sign with a black arrow defines the direction and designation of intersecting taxiways. A red sign with white lettering defines the entrance to a runway or where an aircraft should hold short until receiving an ATC clearance to enter. A red sign with the runway number and APCH indicates an area where ATC may request you to hold short during certain situations.

What do these signs indicate?

You are currently located on Taxiway Juliet. Taxiway Sierra crosses perpendicular in front of you from left to right, and you are nearing the Runway 27 Approach Area holding position (you are only required to hold short of the Approach area if instructed by ATC, even though it uses the same pavement hold short markings that you’d find leading up to an active runway).


ILS Critical Area

Name
ILS Critical Area

Purpose

This sign identifies the ILS critical area boundary. At towered fields, you must hold short of the ILS critical area only when instructed by ATC. At non-towered fields during instrument conditions, remain clear of the critical area until released by ATC.

What does this sign indicate?

You are approaching the ILS critical area.


No Entry Sign

Name
No Entry Sign

Purpose

The no entry sign identifies paved areas where aircraft entry is prohibited.

What does this sign indicate?

Do not enter – the paved surface is the entrance to the airport fire department.


Ground vehicle surface marking

Name
Ground vehicle surface marking

Purpose

White markings are for ground vehicles and are used to define a pathway for operations on or crossing areas that are also intended for aircraft.

What does this sign indicate?

The red “stop” letters on the white painted background instruct ground vehicles to stop at this location.


Non-movement area marking

Name
Non-movement area marking

Purpose

A single sold line next to a single dashed line delineates movement from non-movement areas. The non-movement area begins on the side with the solid line and typically separates areas like FBO ramps and aprons from active taxiways and runways. You can taxi freely in the non-movement area without an ATC clearance. When ready to taxi out of a non-movement area, pull up to the solid line side of the marking and call ATC for a taxi clearance.

What does this marking indicate?

You are taxiing in from the movement area (an active taxiway) to the non-movement area (the FBO ramp)


Runway Holding Position Sign and Marking

Name
Runway Holding Position Sign and Marking

Purpose

These markings identify the locations on a taxiway where aircraft MUST STOP when a clearance has not been issued to proceed onto the runway. Generally, runway holding position markings also identify the boundary of the runway safety area (RSA) for aircraft exiting the runway. An aircraft exiting a runway is not clear of the runway until all parts of the aircraft have crossed the applicable holding position marking.

What does this sign and marking indicate?

You are currently on taxiway Alpha, holding short of the approach end of Runway 27.


Runway Blue Dot

Name

Runway Blue Dot

Purpose

There are several uniquely colored, round markers painted on the runways at Oshkosh (KOSH) during EAA’s Airventure week, which ATC uses to instruct inbound airplanes on which part of the runway to aim for during land.

What does this marking indicate?

You just landed on runway 36L at Oshkosh!

Now is a great time to take our quiz on airport signs and markings.

 

Can you fly with inoperative instruments?

Well, it depends.

inoperative sticker

It may be possible to operate an aircraft with a piece of equipment not working if it falls within the scope of FAR 91.213.

While the regulations generally require that all instruments and equipment installed aboard the aircraft be in working condition, it may be possible to operate an aircraft with a piece of equipment not working if it falls within the scope of FAR 91.213 or the aircraft is operating with a Minimum Equipment List.

FAR 91.213 allows certain Part 91 operators to fly an aircraft with inoperative instruments or equipment but it is limited to aircraft operating in a non-turbine powered, small airplane. A small airplane is defined as one that has a maximum certified takeoff weight of 12,500 pounds or less. But there are additional limitations.

The inoperative instruments and equipment cannot be part of the VFR-day type certification requirements or indicated as required on the aircraft’s equipment list or the aircraft’s kinds of operations equipment list for the kind of flight operation being conducted. The equipment also cannot be required by FAR 91.205 which describes the bare minimum for airworthiness, or any other rule of Part 91. The inoperative components also cannot be required to be operational by an airworthiness directive.

The aircraft’s equipment list, or kinds of operations equipment list, can be found in the Pilot’s Operating Handbook.

Finally, a pilot or certified mechanic must determine that the inoperative instrument or equipment does not constitute a hazard.

If it is determined the flight can be conducted safely under the guidance of FAR 91.213, the inoperative instruments and equipment must be removed from the aircraft, the cockpit control placarded, and the maintenance recorded. Alternatively, the equipment can be deactivated and placarded inoperative. If deactivation of the inoperative instrument or equipment involves maintenance, it must be accomplished and recorded in the aircraft maintenance logs.

MINIMUM EQUIPMENT LISTS

master minimum equipment list

The MEL is developed from the Master Minimum Equipment List (MMEL).

For aircraft that are unable to utilize the relief for inoperative instruments or equipment contained in FAR 91.213, such as jet aircraft or any aircraft operated as a certified air carrier under Part 135 or 121, the only option for relief is to utilize a Minimum Equipment List (MEL). An MEL is a precise listing of instruments, equipment, and procedures that allows an aircraft to be operated under specific conditions with inoperative equipment.

The MEL is developed from the Master Minimum Equipment List (MMEL) which is produced by the aircraft manufacturer and ultimately approved by the FAA. An operator’s MEL may be identical to the MMEL but it does not have to be. If it differs, the MEL can never be less restrictive than the MMEL which is why many operators choose to simply adopt the MMEL.

When the individual operator’s MEL is approved and authorized by the FAA, it then becomes a Supplemental Type Certificate for the aircraft and must be followed at all time. It is worth noting, that even if an aircraft/operator is eligible to utilize the relief of FAR 91.213 for inoperative instruments and equipment, you may choose to seek approval for an MEL. But once the MEL is approved, you must always abide by the MEL and are not permitted to revert back to FAR 91.213.

The FAA has MMELs available for most of the type-certificated aircraft in use today. They can be found with the FAA’s Dynamic Regulatory System page. Certain instruments and equipment are not allowed to be included in an MEL. For example, instruments and equipment that are required by airworthiness standards.

An MEL is intended to permit operation with inoperative instruments or equipment for a limited period until repairs can be accomplished. The MEL also may establish conditions for operation with inoperative equipment. When inoperative equipment is discovered, the regulations require that it be reported via a proper entry in the aircraft maintenance records. The item is then repaired, or deferred for repair, but must also be deactivated and placarded inoperative by an appropriately certificated technician.

MEL conditions and limitations do not relieve the operator from determining that the aircraft is in condition for safe operation with items inoperative, and the deactivation of one inoperative instrument should not degrade or negate the performance of any other instruments or equipment.

Whether you are a Part 91 operator or a commercial operator, an FAA operations inspector will be the primary FAA official responsible for the overall process of evaluating, and approving an MEL document.

Webinar video: Flying with Datalink Weather

Datalink weather, either from ADS-B or SiriusXM, is an essential tool for almost all pilots. Once you’ve flown a cross country with in-flight radar, up-to-date METARs, and visual AIRMETs, it’s awfully hard to go back to flying without it. It makes flying safer, easier, and more comfortable – a rare combination – but only if you know how to use it properly.

Join Air Facts editor John Zimmerman for an in-depth look at datalink weather.

And if you’re considering a datalink weather receiver for your iPad (like a SentryStratus, or GDL), one of the first decisions you’ll face is the source of your weather data: ADS-B or SiriusXM? This webinar will explore the important differences to consider.

Quiz: Weather theory for pilots

There is one constant in aviation that affects every flight, no matter if you’re flying as a student pilot in the practice area or flying for the airlines from coast to coast – the weather. Developing a sound knowledge of weather theory is critical in the early phases of flight training to assist with making the important go/no-go decision. Take our latest quiz and test your knowledge of the fundamentals of weather theory.

What is meant by the term "dewpoint?"
What is meant by the term
Correct! Wrong!
One weather phenomenon which will always occur when flying across a front is a change in the
One weather phenomenon which will always occur when flying across a front is a change in the
Correct! Wrong!
The suffix "nimbus," used in naming clouds, means
The suffix
Correct! Wrong!
What measurement can be used to determine the stability of the atmosphere?
What measurement can be used to determine the stability of the atmosphere?
Correct! Wrong!
Steady precipitation preceding a front is an indication of
Steady precipitation preceding a front is an indication of
Correct! Wrong!

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Basic weather quiz You got out of 5 right!

Want to learn more about aviation weather theory? Check out Sporty’s Learn To Fly Course for more in-depth training on this subject.

Reaching New Heights

Ten days before my eighteenth birthday, I experienced the thrill of a lifetime …

Standing by the hangar alone, with not another participant in sight, I donned the numbered lanyard that I had been assigned–#1.  Flights went out on a first-come, first-served basis, and despite living 40 miles away from this charming, small town airport in Poplar Grove, I had arrived before anyone else.

Lively chatter filled the early morning air as the pancake breakfast was in full swing, punctuated by silence only when the crowd admired the droning of an incoming aircraft.  The day was picture perfect:  the slight breeze sweetly turning the emerald leaves of the trees, in stark contrast with the clear, sparkling sapphire sky.  I shuffled my feet, scraping the asphalt as I eagerly awaited my name to be called.  I was particularly excited about this rally because it was my 30th Young Eagles adventure; the surrounding landscape was already peppered with a wide variety of recreational planes, ready to transport kids into the wild blue yonder.

Suddenly, a large, noisy object nearly blotted out the sun.  As if in the grip of an unknown power, all heads swiftly swiveled in the direction of the awesome airplane.  Huge, black and yellow, roaring like a lion, it descended, dwarfing the rest of the competition.  Large, shiny propellers scattered the rays of sunlight, as the engine groaned to a stop and a nimble airman hopped out of the military biplane from years gone by.

Waco airplane bi-wing flying

1934 Waco S3HD

Much to my surprise, a middle-aged man in a vintage brown leather jacket strode down the runway towards me.  His casual, old-fashioned vibe reminded me vaguely of Indiana Jones.  Like moths to a flame, history buffs quickly surrounded the warbird he left parked, admiring its prowess.  I was slack-jawed as this unassuming figure passed me to walk into the fragrant breakfast area, mingling with those who were able to conjure up words in his presence.

This, I thought, this dark giant is the plane for me.  What an absolute privilege it would be to explore the world from its vantage point.   Right on cue, Dawn, one of the congenial coordinators, approached me.  “You know, you could go up in that one, if you wanted.”

“The biplane?” I inquired incredulously.  I had assumed it was too much of a classic to be touched by anything other than the aviator’s careful hands.  She nodded, and I nervously replied “I’ll think about it, sure.”  Fear toyed with my dwindling courage, making me doubt whether or not I could really handle such an enormous aircraft.

“Sam,” my mother said with emphasis, glancing at me with one brow arched, “opportunities like these don’t come around very often.”

“Wait!”  I huffed as I speed-walked to the registration table, “Yeah, I’d like to fly in that one.  It’s pretty cool.”  Dawn winked at me and that’s all it took.  I happily ambled back to where I had stood before, anxiously waiting for the mysterious pilot to finish his delicious Sunday breakfast.

Waco bi-wing airplane parked on ground

“Yeah, I’d like to fly in that one. It’s pretty cool.”

Soon thereafter, my mother and I were strolling up to the magnificent sky beast, bowled over by its immense size.  The proud owner from New Hampshire, John Ricciotti, explained that it was a 1934 Waco S3HD–the only one of its kind still flying.  I didn’t think it was possible, but my heart swelled, and I felt even more lucky to be co-piloting, let alone riding in his prized possession.

As we circled the perimeter, John pointed out its sturdy construction and interesting facts, like it boasted a gross weight of 3,400 pounds, all while expertly conducting the routine inspection.  After I carefully hoisted myself into the mammoth craft, my mom snapped pictures of my smiling face, barely peeking out from the back of the tandem seat, usually occupied by aerial gunners.  A dizzying preflight followed as I learned how the plane responds to turns, along with other pertinent data.  I hauled the army-grade straps over my shoulders, adjusted the cushy headset, and buckled in.  We were ready to roll!

I glanced around the cockpit, as the confident airman sat in front of me, checking over the instruments.  The interior was surprisingly basic, but efficient.  Exposed wood surrounded me, and I noted that I had my own throttle and gauges connected to the pilot’s by a cable, so we moved as one.  My feet rested on the rudder pedals, and I allowed plenty of room for the stick to change positions between my legs.  Better to do modified splits now then have a little bump turn into something worse, I mused.  I slid the glass bubble above me open slightly.

As we taxied down the rolling grass runway, Ricciotti shouted over the wind in the open cockpit, “OK, we have a basic preflight checklist…C.I.G.A.R–Controls, Instruments, Gas, Attitude, and Run-up.  I set the trim, remind me that I did that later.”

“Yes, sir!” I snapped, compelled by his authoritative manner.  As we waited for our turn to take off, he asked once again if he set the trim, and I responded in the affirmative.  Finally, the most exciting moment had arrived.

The great monstrosity of an aircraft hurtled down the runway at breakneck speed.  In fact, with a 450 horsepower engine, the acceleration was so extreme that I had to look down and catch my breath for a split second, before letting out an exhilarated whoop.  We roared into the heavens with all the ferocity of an eagle.  It felt like we were encapsulated in an air tank, threatening to swallow up the sky with its immense power and crush anything that dared to enter its path.  I could almost feel the stares of all those on the ground mesmerized by the sight of us.

“Now then,” he yelled, “When you take the plane, I need to you say ‘I have the plane.’  You have the plane.”

“I have the plane,” I repeated with a grin.  I could hardly contain myself as I grasped the controls.  I was piloting the civilian model of a bona fide bomber.  After a couple of swooping turns, I got a feel for this heavy hitter.  Naturally, as a military fighter, its function was to dive, and every so often a little yank upwards was needed.  I peered through the top of the glass cover, at the endless expanse of blue, high above.  I’m actually living my dream.  I beamed.  Oh yeah, I’m never gonna stop flying!

“Give her a couple turns.  Don’t worry, it takes a lot to tip this thing.  I mean, you would really have to work at it.”  I didn’t doubt that for a minute.  Adding more rudder and aileron force, the airplane arced to the left, and then the right.  After a bit, John pointed out landmarks for me to use as guides, so we could get back to the airport.  With the utmost of vigilance, I followed roads and smaller planes maneuvering through the same rally flight pattern.  I thoroughly enjoyed the smooth ride, feeling totally secure as the solid biplane sliced through the air.

“You know, these Bose headsets?  Cost about two thousand dollars for both of them.  My friend who owned this plane before me, he didn’t wear any ear protection and used to make fun of me for buying these.  He’s about deaf now.  I asked him how much his hearing aid cost, and he said about six thousand.  I rest my case.”

I chuckled, and continued to follow the route, so focused that I lost track of time.  As we flew through the countryside, I asked the seasoned pilot questions about his impressive plane, enthusiastically absorbing the information, including how long he had owned this magnificent craft.

Waco bi-wing airplane descending

“I gradually eased back on the power, and the plane slowed in response, immediately tipping downward.”

After a while, Ricciotti issued another command.  “Pull back the throttle, we’re coming in for a landing.”  Although several embarrassing seconds elapsed before I complied, I gradually eased back on the power, and the plane slowed in response, immediately tipping downward.  For an instant I was a soldier on a military mission, entrusted with the daring role of a tail gunner. However, I was jolted back to the present when John announced that he would then guide the plane and instructed me to crack open the cockpit cover.

The wind was so powerful it felt as if a hundred miniature whips were striking across the back of my neck and down my shirt.  I couldn’t have cared less.  The view was unparalleled, and being engulfed in the unpredictable updraft made it all the more amazing.  I imagined that this is what superheroes feel like, streaking across the skies, cool air rushing against their cheeks.

As the picturesque homes and fields burst into full color, gaining clarity as our altitude decreased, I braced myself for impact.  Just as before, every head turned in our direction as we pounced onto the grass runway, welcomed by a sea of waving arms.  No doubt, this guy knows how to make an entrance, I thought, smirking.

We clambered out of the aircraft, and I couldn’t help but feel as if I was a minor celebrity.  Profusely thanking my mentor for the incredible experience, I shook his hand, soaking up all his advice about acquiring my license.  My heart beat wildly with pride when the pilot informed my mother about how well I operated his plane, especially because he is a flight instructor too.  Best of all, when John signed my logbook, he remarked, “Oh, that’s why.  Look at all these entries, you’re a vet!”

Blushing, I expressed my appreciation once again and firmly clasped his hand.  My mother did likewise, right before clutching me in a big hug.  That very same day, on our way home, we headed over to the local flight school to learn more about the entire process.

After nine years of driving me to one Young Eagles rally after another, my mom finally got the chance to sit in the cockpit with me as I explained all of the controls.  Recognizing the meaning behind the twinkle in my eyes, we both knew that I was definitely going to reach for the sky, and earn my wings.  Someday, it would be my turn to graciously introduce others to the spectacular world of aviation.

Walking back down the dusty road to our car, I laughed as I remembered what Ed Myers, the EAA Chapter 1414 President, said to me when I returned to the airport, “By the way, I’m so jealous.”

Sporty's course interactive scenario

What’s new in Sporty’s 2024 Pilot Training Courses

Sporty's 2024 PIlot Training courses

Sporty’s 2024 Pilot Training Courses work on all your devices, with automatic sync.

One of the best investments you can make as a student pilot (or a rusty pilot) is a good home study course. While your flight lessons will form the core of your training, there’s a lot of work to be done in between trips to the airport. Sure, you’ll need something to help you prepare for the FAA knowledge test, but the benefits of a course go far beyond that. It will also help you save a significant amount of time and money by preparing for each lesson at home. Most importantly, you’ll be a safer, more confident pilot after you earn your certificate.

Sporty’s Learn to Fly Course is used by tens of thousands of pilots every year and is a complete flight training companion. It includes over 15 hours of 4K video, comprehensive test prep tools, and a complete FAA document library. Sporty’s courses are famous for a relentless pace of innovation; every year, we add new content, new training tools, and new platforms. This year is no exception, with a number of significant upgrades that make training more engaging and more efficient. Here’s a look at some highlights.

New video segments

The heart of Sporty’s course has always been the dynamic video segments. From your first flight all the way through checkride, you’ll see what to expect and you’ll learn how to master complicated maneuvers. The team at Sporty’s is continuously updating and expanding these videos to keep up with both changing technology and the latest training techniques. 

New for 2024 are major updates to segments on runway safety, wake turbulence, and using both digital and paper charts. Plus, we’ve completely reorganized the Instrument Rating and Commercial Pilot courses to flow more logically and cover each topic in detail. As usual, our videos focus on real world flying and practical tips, not just memorization.

Sporty's pilot training video

Interactive exercises

Now you can go beyond videos with these interactive and engaging learning tools. Instrument simulators allow you to twist knobs and watch the needle swing on the panel, chart quizzes help you learn complicated symbols, and detailed systems diagrams simulate failure modes of the pitot tube or static port. These practical, hands-on scenarios put what you learn to work. (See a sample exercise here.)

Sporty's course interactive scenario

Smart notes

Sporty’s course is loaded with information, from video segments to FAA handbooks to test prep sessions. Now there’s a centralized tool to help you organize your key takeaways, easily accessible no matter where you are in the course. Simply click or tap the floating “New Note” button at the bottom right of the screen and the Smart Notes interface will appear. You can add as many notes as you’d like and keep them organized with a simple menu system. When adding a new note from any of the video lessons, the note will automatically insert the name of the lesson and generate a clickable link that you can use to jump back to that lesson when reviewing your notes later.

Sporty's smart notes

FAR study guides

Sporty’s powerful FAR feature gives you instant access to the complete Federal Aviation Regulations, packed with essential information for any pilot. It’s fast and searchable to streamline your studying, and it’s always up to date. For 2024 we’ve added time-saving tools that highlight which sections are applicable to each certificate level, so you can skip the unnecessary parts and focus on what matters. A new bookmark tool also makes it easy to review important sections.

FAR study guide

Windows tablet app

Train anywhere, anytime—that’s always been Sporty’s promise. A single purchase includes lifetime access to the Learn to Fly Course on a huge variety of platforms, including web browser, iOS devices, Android devices, and smart TVs like Roku. Progress is automatically synced between devices, so it’s easy to switch back and forth as your study sessions move. The latest addition means you can now use Sporty’s Pilot Training app for Android on your Windows device—perfect for studying on a Surface tablet.

Windows app - Sporty's course

In-course notifications

Sporty’s Learn to Fly Course includes lifetime access and lifetime updates, meaning you’ll always have access to the latest video training, test prep questions and FAA resources. To help you keep up with these updates, you’ll find a new Inbox located at the top right of your course. Check back here often to learn about new training content and updates added to your course, as well as the latest flight training news and tips from the team of flight instructors at Sporty’s.

Inbox

Customer favorites

All of these upgrades join an already impressive list of features, including powerful FAA knowledge test prep tools. Sporty’s course includes a proprietary database of over 1,000 FAA test questions, customizable study modes, and unlimited practice tests. You can even earn an automatic flight instructor endorsement to take the test when you’re done.

Best of all, you never have to worry about out-of-date materials or missing features with Sporty’s free lifetime updates. Simply buy the course once and you own it forever—no subscriptions and no upgrade fees required. Every time you log in to the online training portal or open up the Pilot Training app on your mobile device, you’ll have access to the latest video segments, test question updates, and training features. It’s an incredible value: for the price of one flight lesson, you’ll save thousands of dollars over your flying career.

Learn more

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