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ASA

ASA CX-3 Flight Computer | Advanced Aviation Calculator for Student Pilots & Professionals | FAA Approved for Exams | ICAO-Compliant Digital E6B

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Availability: Only 7 left in stock, order soon!
Fulfilled by Gulf Coast Avionics Corp.
Arrives Saturday, Sep 19
Order within 16 hours and 33 minutes
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Features

  • FAA-Approved for Written Exams: Take the CX-3 directly into FAA knowledge testsno memorization required. Designed to simplify complex calculations so you can focus on understanding, not guessing.
  • Powerful Flight Planning Functions: Quickly compute wind corrections, fuel burn, groundspeed, time en route, density altitude, and moreall with intuitive inputs and clear outputs.
  • ICAO-Compliant for Global Use: A truly international tool, the CX-3 supports ICAO standards, making it ideal for pilots training or flying worldwide.
  • Large Backlit Screen + User-Friendly Interface: Bright, easy-to-read display with logically organized menusperfect for cockpit use, study sessions, or low-light environments.
  • More Than an E6BA Complete Aviation Computer: Includes unit conversions, timers, holding pattern calculations, weight & balance support, and additional utilities for both VFR and IFR pilots.

Description

The CX-3 Flight Computer makes flight planning simple by taking confusion out of the equation. Fast, versatile and easy to use, the CX-3 delivers accurate results quickly and efficiently. It can be used on all FAA and Canadian pilot, mechanic, and dispatcher knowledge exams. Whether used for flight planning, ground school, or knowlledge testing, the menu organization reflects the order in which a flight is normally planned and executed, resulting in a natural flow from one function to the next with a minimum of keystrokes.Multiple aviation functions can be performed on the CX-3 flight computer including those related to time, speed, distance, heading, wind, fuel, altitude, cloud base, standard atmosphere, glide, climb & descent, weight & balance, as well as a holding pattern function to help determine entry method and holding details. A calculator, clock, timer and stopwatch are also built in along with mutliple settings for lighting, backlighting, themes, scrolling speed, time zones and more.The sleek design, and ergonomic fit and finish of the CX-3 make for easy transport. The protective cover comes off the front and snaps onto the back of the computer. A no-slip-strip prevents the CX-3 from sliding around on smooth desk surfaces. A Theme feature provides a convenient way to switch from Standard view to Night or Daylight views. The backlighting feature controls the brightness or intensity of the screen, and the buttons on the keypad will light up in Dusk and Night modes for use in darker environments. A Favorite feature provides quick access to your most frequently used function and store the Aircraft Profile will let you store numbers specific to your aircraft.Package includes CX-3 Flight Computer, 4 AAA batteries, protective cover, and quick start guide.

Brand: ASA


Color: Black


Calculator Type: Engineering/Scientific


Power Source: Battery Powered


Screen Size: 4.24 inches


Brand: ASA


Model Name: CX-3


UPC: 855734008354


Unit Count: 1 Count


Number of Packs: 1


Manufacturer: ASA


Number of Items: 1


Item Weight: 0.27 g


Model Number: 8541748200


Mfr Part Number: ASA-CX-3


Warranty Description: 5 Year Limited Manufacturer


Calculator Type: Engineering/Scientific


Power Source: Battery Powered


Screen Size: 4.24 inches


Number of Batteries: 4 AAA batteries required.


Display Type: LCD


Color: Black


Enclosure Material: Plastic


Item Dimensions L x W: 6.3"L x 3.35"W


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • ASA vs Sporty's ASA Wins!
I bought this and the sporty's flight computer to compare. I found this one easier to use and much easier to see. Even with my readers it's not easy to see the fine print under each key on the sporty's version. It just made more sense using this one also. One single key does unit conversions and will do so for whatever you are currently looking at. One button only. Sporty's has a different conversion button for each unit designation and you must read very small print under each small key to get to the correct one. The ASA version has simple back space button also if you made an incorrect entry. Super easy. I'm sure there's a way on the sporty's version too but I didn't readily see how to do that in several minutes of using it....what's that tell ya? The COLORED screen show you a green = sign to show this is a calculated field from the numbers you entered. Hence sometimes you see a number you weren't even looking for but because you entered enough data fields it displays and = sign and ALL the related fields it figured out. It takes a bit of time to determine what screen is used for each problem you are looking to solve. For instance endurance will likely be in the 'fuel' category etc. One thing some have complained about is there's no way to clear the computer without removing the battery. I too had a problem it was remembering data entries I didn't want it to so it could possibly give me the wrong answer. But this is because it's trying to show you ALL the possible answers per your entires and carry them over to relevant other screens. However it's very easy to simply start at the top of the screen hit '0' then 'enter' then simply repeat hitting those two same buttons and it walks down the screen and zeros all entires to start over. So it takes all of about 2-3 seconds to clear all entries. You do not need to remove the batteries. Unlike the sporty's version this one has lighted keys! If you were trying to use this in a darker environment no problem... you could be in big trouble trying to do that with sporty's. The screen on sporty's lights up but NOT the keys. Another thing I like better is the keys are bigger on the ASA !! NICE! I was far less likely to make a typing mistake by hitting the wrong key. The sporty's version has very small keys... easy to make a mistake.... and I don't need any help making mistakes I can do that all by myself pretty easy lol. The buttons on the ASA feel very sturdy... easy and predictable when pressed with a distinct 'click' when doing so. Not as obvious with the sporty's. So all in all after trying both I definitely liked the ASA version the best. Plus it looks cool... modern. You can even change the color of the text. About the only thing I could complain about is it came with no user manual. These days not big deal just look on-line right?.... But it would have been a real 10 out 10 if it came with a small cheat sheet that fit right in the cover that would help you know which screen for what answer... like 'Endurance = Fuel' or TR'cs = TRIP .. you figure it out but a little cheat sheet would have been the ACE in the hole. You won't be disappointed with the ASA version. It feels solid and seems very well made. Its operation is just about as novice / user friendly as you could get. ... show more
Reviewed in the United States on March 12, 2025 by govsux
    • Better than the Sporties E6B.
I purchased the Sportie's E6B and found it to be clunky, the buttons reminded me of one of those cheap calculators you buy from Walmart. The ASA buttons are all one piece which makes it feel seamless. The functions are set up in a very straight forward manner and the flight planning section is super easy to use. The only thing I would caution the potential student is make sure you know which radial you are using for the outbound(hold) course, sometimes test questions tell you the inbound and not the outbound radial so you have to put in the reciprocal. Fortunately this calculator includes reciprocal radials as one of its functions! This is a well designed calculator with the Pilot in mind, it is also completely OK to use on your FAA exams so no need to use the wiz wheel again. As a brand new student I would still recommend learning on the whiz wheel, you'll learn better how the relationship between DA and airspeed work, something you don't see on a calculator. My only complaint is that the battery life is a little low compared to a traditional calculator but that is really the only thing I can say negative about it. The insert that comes with the calculator is a great starting point for the functions. Would buy again just for calculating Climb/Descent for non standard departures. ... show more
Reviewed in the United States on January 26, 2019 by Brian
    • VERY GOOD FOR PAR EXAM!!
If you are looking for a calculator to help you pass your PAR this is it. At first it is confusing but after watching some videos and doing multiple problems it is very straightforward and simple and easier than a mechanical E6B. The battery life is amazing and it feels worth the price. The quality is amazing and it is very easy to read and use. ... show more
Reviewed in the United States on November 22, 2025 by Drew
    • Trip Plan function is stellar ....
I like mine, the back-light options are nice for either night or day. It's a handy size, has a quality feel to the case and keypad and the protective cover is great for throwing it in my backpack. I'm presently a Private Student Pilot and it’s taken time for my old-school instructor (40 years flying) to warm up to the idea but making changes for crosswinds or fuel burn can't be beat when compared to using the mechanical E6Bs. In addition I don't believe they can manually obtain the same level of accuracy regardless of what the ol' timers may say. The weight and balance function, while admittedly I haven't used it much in instruction, is a breeze once you have the values. Given that taking the Knowledge Exam comes at a reasonably steep price this will be a time saver so I can spend more time on other questions. Be aware, this alone will not get you through your exam, or even your instruction. For example, while the Trip Plan function is stellar you still need to provide the device values like winds aloft speed and fuel burn to get accurate results. Determining fuel for taxi and takeoff, climb to altitude and cruise burn per hour rates are not inclusive in this E6B capability and come from elsewhere as per your ground school preparation. It’s taken me some time to recognize its value and function but now it’s another tool in my kit and I wouldn't give it up going forward. It will get plenty of use even after my license is obtained. I’ve never held the competing products in my hand (Sporty’s etc.) but I feel the few extra bucks were well spent on the ASA. ... show more
Reviewed in the United States on March 29, 2018 by Tamarindo
    • Great tool-Don’t leave home without it!
Excellent tool. It is intuitive and makes life so much easier. Weight & Balance calculations a little hard at first, but once you get the hang of it it’s just fine. I did a couple of fictitious calculations to get the hang of it. The only issue I found is it is hard to get the back off to get to the battery compartment. Also, for what it costs, you would think ASA could print an instruction manual instead of referring you to a web site and YouTube. Other than that, I love it. I think you will too. ... show more
Reviewed in the United States on July 8, 2026 by Airbss9
    • Works Great & Comes Charged Already
Came safe and sound! Already charged and fully functional! Quality is great and I have not had problems with it so far. Really made calculations for Aviation Classes way easier and quicker!
Reviewed in the United States on April 5, 2026 by Mosquiterr Legz
    • Good practice and planning tool
Best device for your flight planning and practice for the written test. I used the online version before, but the online one is not working correctly and is giving you wrong numbers sometimes. With the real one everything works perfectly. Only thing is, that it is running on batterys. Most other calculatiors are still having a small solar panel to save energy. This one does not. ... show more
Reviewed in the United States on April 13, 2026 by Timothy
    • Very useful for flight prep
Very helpful and a great flight navaid.
Reviewed in the United States on April 9, 2026 by Michael West

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