ASA CX-3 Flight Computer – Advanced Electronic E6B for Accurate Flight Planning and FAA Exam Preparation
Quick take
The ASA CX-3 is an electronic E6B flight computer with a color LCD and menu flow designed to match how pilots typically plan a flight. It’s built for speed and convenience across common calculations (time, speed, distance, wind, fuel, altitude, weight and balance, and more), with adjustable lighting, themes, and favorites. The main catch is that it can feel confusing at first, but buyers say it becomes easier after learning the menus and practicing problems.
Pros and cons
Pros
- Exam-approved for FAA and Canadian pilot, mechanic, and dispatcher knowledge testing.
- Color LCD and organized menus that mirror the normal order of flight planning, reducing extra keystrokes.
- Broad calculation coverage, including time, speed, distance, heading, wind, fuel, altitude, holding, and weight and balance.
- Comfort features for real-world use, including adjustable lighting and a protective cover with a no-slip strip.
Cons
- Learning curve early on, especially until you understand which function you are in.
- Because it does many calculations, it may be overkill if you only need a simple E6B-style calculator.
What buyers think
Buyer feedback is consistently focused on readability and ease of use after initial setup. Many comments highlight that the color screen is easier to read than some alternatives, and that menu organization helps streamline calculations for training and exam prep. Several buyers also mention fast calculations and strong battery performance, with one or more pointing to long battery life in day-to-day study use. A recurring theme is that the CX-3 can feel complex at first, but instruction plus practice makes it straightforward.
What the ASA CX-3 flight computer is designed to do
The CX-3 is built to replace manual E6B style computation with an electronic interface that keeps track of the data you enter and the fields it derives from it. That means you can focus on solving the planning problem rather than doing repeated arithmetic steps.
Functionally, it targets the calculations students and pilots use most often during flight planning and ground school. It includes calculations for time, speed, distance, heading, wind, fuel, altitude, cloud base, standard atmosphere, glide and climb or descent, and it also supports weight and balance. There is also a holding pattern function for entry method and holding details.
Interface and usability: why the learning curve matters
One of the biggest decision points with electronic flight computers is whether the interface helps you get to the right computation quickly. Buyers repeatedly describe the CX-3 as easier to use than other common electronic calculators, with one-button-style unit conversion behavior and a simple way to correct an incorrect entry.
The menu system is organized to reflect how flight planning typically proceeds, which can reduce hunting through categories while you are working a problem. Still, multiple buyers note that there is a learning curve at first, especially for knowing which screen applies to the specific aviation task you are trying to solve. If you are currently studying for an exam or building competency, plan on a short practice period so the menus become muscle memory.
Display, lighting, and portability
The CX-3 uses a color LCD and includes adjustable lighting and backlighting controls. It also offers theme modes (including options for day or night viewing) and a lighting behavior for the keypad in darker environments. If you do study sessions across different lighting conditions, these features are a practical quality-of-life upgrade over a basic monochrome display.
For carrying in a flight bag or on a desk, the unit is designed to be slim and portable, and it includes a protective cover that snaps onto the back of the computer. A no-slip strip is included to help prevent sliding on smooth surfaces.
Power and included essentials
The CX-3 is battery powered and requires four AAA batteries. The package includes the flight computer, four AAA batteries, the protective cover, and a quick start guide, which helps you get going without having to source basic power and accessories separately.
Customization that can save time during repeated study
To reduce friction during frequent practice, the CX-3 supports customizable settings such as adjustable lighting and backlighting, theme selection, time zone settings, a favorites feature for quick access to frequently used functions, and an aircraft profile option to store aircraft-specific numbers.
Who should buy the ASA CX-3
- You want an electronic E6B-style calculator that covers the broad set of planning tasks used in training, ground school, and exam practice.
- You value a color display that is easier to read and a menu structure that follows the natural flow of planning.
- You want lighting and theme options so you can study or compute in different environments.
- You prefer an organized favorites-style workflow for recurring calculations.
Who should avoid it (or consider a simpler option)
- You mainly need a basic calculator and would rather not manage a device with many functions.
- You are expecting instant usability without learning the menus. The interface is powerful, but it takes a bit of practice to navigate quickly.
Price and availability
Pricing can vary by retailer. If you are deciding between versions or checking fit for your next study session, use the live button below to confirm the current price and stock status.
Verdict
The ASA CX-3 is a strong pick for students and pilots who want an exam-approved electronic flight computer with a color LCD, organized planning flow, and wide-ranging calculation coverage. The main tradeoff is that it can feel complicated at first, but buyer feedback suggests it becomes efficient after you learn the menus and practice through typical problems.
FAQ
Is the ASA CX-3 approved for FAA and Canadian knowledge exams?
Yes. It is described as FAA and Canadian exam approved for use on pilot, mechanic, and dispatcher knowledge exams.
What calculations can the CX-3 handle?
It supports time, speed, distance, heading, wind, fuel, altitude and cloud base, standard atmosphere, glide, climb and descent, holding pattern entry details, and weight and balance, plus built-in calculator and clock features.
Does the color LCD and backlighting help in low-light conditions?
It includes adjustable backlighting and theme modes designed for different viewing conditions, along with keypad lighting behavior in dusk and night modes.
Is it hard to learn if I have never used an electronic E6B?
There is a learning curve at the beginning. Buyers commonly report that it feels confusing initially but becomes straightforward after reviewing the instructions and working through practice problems.
How is it powered?
It requires four AAA batteries, which are included with the package.
Specifications
| Product Title | ASA CX-3 Flight Computer – Advanced Electronic E6B for Accurate Flight Planning and FAA Exam Preparation |
|---|---|
| Category | Electronics > Car & Vehicle Electronics > Aviation Electronics > Aircraft Accessories |
| Brand | ASA |
| Manufacturer | ASA |
| Model Name | CX-3 |
| Model Number | 8541748200 |
| Color | Black |
| Item Weight | 0.01 Ounces |
| Calculator Type | Engineering/Scientific |
| Power Source | Battery Powered |
| Screen Size | 4.24 Inches |
| Number of Batteries | 4 AAA batteries required. |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 6.3"L x 3.35"W |
| UPC | 855734008354 |
| Mfr Part Number | ASA-CX-3 |
| Warranty Description | 5 Year Limited Manufacturer |
| Unit Count | 1.0 Count |
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