ASACX-3 Flight Computer – Advanced Electronic E6B for Accurate Flight Planning and FAA Exam Preparation

The best flight calculator on the market (June 2025) It does everything the whizz wheel does. plus so much more. The back light is very useful too. Easy to read, fast calculations (mostly instantanious), yes its complicated - the instructions are clear and once you have read them and practiced a bit - it soon becomes very easy. Hey if you're a Pilot, you are not stupid, so you can easily use this amazing calculator - the only thing it doesn't do is make the tea / coffee - which you can do whilst reading the instructions on your iPad! Happy Landings.

Would highly recommend this to any pilot that is in the process of training. I recently had to take my private pilot test and this was a live saver. I didn’t like the “guesswork” of the manual e6b. I could struggle my way through it, but it wasn’t very precise. This is a totally different story. It is super easy to use. Gives precise calculations. Is FAA approved for use on knowledge exams. And saves so much time and headache with a bunch of different questions. Well worth the investment if you are still in flight training. Fits well in a flight bag to help with all of your cross country flight planning needs, has a backlight so it can be used in the light or dark and the display is super easy to read.

A must for flight students! This will make your written tests much easier!

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.

The size of it is what surprised me. It's like a large phone, think Pixel XL in size but twice as thick.As far as functions go, it's a digital whiz wheel so it's much quicker to do various calculations in flight. It also remembers data you have entered making moving to the next conversion much easier. I wouldn't say it's an outright replacement for the classic whiz wheel but it should find a home in any pilot bag that isn't already filled by an ipad. Last since it's FAA approved you can use it on your exam.The build quality is far better than I expected. The buttons have a nice rubber texture and a gentle click. The backlight cleverly dims and illuminates the buttons when set to night mode. There is a USB micro on one side which I assume is for firmware updates. The back battery fits very tightly, be gentle with it.The seller, Sportys, shipped the product promptly and in a large bubble envelope. The box the CX-3 was in had a small ding but it was perfectly fine. Best of all it arrived earlier than first predicted.

Makes it easier for a student pilot like myself to figure out data needed to fly correctly.

The computer works very well and it is very helpful, but I’m not very happy with how it opens both for battery replacement and for the front cover. They are hard to get off, especially the battery side where you have to pull it off with a screwdriver or fingernails. It should have a design like my TI-83, especially with the poor battery life. It lasts 20h max.We should also be able to change the screen brightness independently from the keypad, and to a lower level. Choosing different colors for the themes would also be nice. Like the night theme should make all text red, they make it green and white instead.One feature they should add is time adjustment calculations for holding patterns, for adjusting the inbound leg based on your outbound leg time, while showing your previous outbound leg time, correction and new time.Also, I don’t know why they put the ‘star’ button on the left of the directional keys, displacing the left arrow one key to the left, those keys should be swapped.

The best FAA written test study prep material/tool you’ll find. You can literally take this calculator into the testing center and use it for all of your cross country, fuel planning, wind direction and speed, and W&B questions. They don’t question you about it. I’ve used this calculator on 5 of my written exams. Just buy this thing. Good luck!