Complimentary lanyard on orders over $40.

LAUNCH COUNTDOWN

EF1 HANDHELD LAUNCHES IN

The EF1 E6B app is live today. This is the countdown to the handheld.

Already have your EF1?

Owner resources are on the way.

Register Your EF1 Put your device and purchase details on file with us. Coming soon
User Manual The full guide to every EF1 function. Coming soon
How To Videos Short walkthroughs of what EF1 can do. Coming soon
Software Updates Download the latest update and load it over USB-C. Coming soon

Looking for the app? Google Play or App Store

Introducing EF1

EF1 is a modern handheld flight computer built by aviators for the realities of aviation training, testing, and life at the controls. Fast, durable, and designed around the calculations pilots actually use, EF1 delivers essential flight planning and performance tools without the unnecessary complexity of legacy systems.

EF1 complies with FAA Order 8080.6 and AC 60-11, and may be used during FAA and Canadian aviation knowledge exams. The test proctor has the final say.

WHY PILOTS CHOOSE EF1

  • BUILT FOR THE FAA KNOWLEDGE TEST

    Complies with FAA Order 8080.6 and AC 60-11 for electronic test aids, and clears all memory when the batteries come out. For FAA and Canadian written exams. The test proctor has the final say.

  • All your aviation math in one

    Pressure and density altitude, ground speed, wind correction, true airspeed and Mach, compass heading, fuel burn, crosswind, glide, cloud base, and holding pattern entry. Plus weight and balance, and cross country planning for up to 10 checkpoints.

  • Rechargeable Batteries

    Comes with 4 rechargeable AAA NiMH batteries that charge over USB-C. Charge for about 4 hours before first use. Wall adapter not included.

Everything you need to fly.

WHAT'S IN THE BOX

Everything you need to fly.

EF1 ships in a custom-fit folio case that opens flat at your kneeboard or on a desk. An interior pocket holds the printed Hot Start Guide, and the included USB-C charging cable tucks away alongside the device. Built for the way pilots actually pack a flight bag.

Charge for about 4 hours over USB-C before first use. Wall adapter not included.

  • EF1 handheld flight computer
  • Folio case that opens flat
  • Hot Start Guide (in the case's interior pocket)
  • USB-C charging cable
  • 4 rechargeable AAA NiMH batteries
EF1 E6B Flight Computer iPhone app on iPhone 17 Pro Max

THE COMPANION APP

EF1 E6B: The Companion App

The EF1 E6B app is available now. Every E6B calculation, VFR + IFR cross-country planning, printable nav logs, weight & balance, and holding pattern entry, all in your pocket. Works fully offline.

Available separately. The EF1 handheld works entirely on its own.

Get the companion app

Try every feature with a 7-day free trial.

Download on the
App Store Get it on
Google Play

Inside the EF1 E6B app

  • Every E6B calculation

    Wind, airspeed, altitude, fuel, time-speed-distance, weight & balance, and more.

  • VFR + IFR XC planner

    Auto fuel legality, printable PDF nav logs with frequencies + fuel breakdown, in-flight checkpoint tracking with ATA marks.

  • Designed for the cockpit

    Long-press any value to copy. Works fully offline. Built by pilots, for the realities of single-pilot ops.

Get your EF1

Comes with the folio case, Hot Start Guide, 4 rechargeable AAA batteries, and a USB-C cable.

Add to Cart

Frequently Asked Questions

The EF1 Handheld

Can I use EF1 on my FAA knowledge exam?

EF1 complies with FAA Order 8080.6 and AC 60-11, and may be used during FAA and Canadian aviation knowledge exams. It keeps no data after power loss, so taking the batteries out clears the memory. Acceptance is at the proctor's discretion, so arrive early and bring EF1 out of your bag at check-in.

Where can I buy EF1?

Right here on entireflight.com, starting November 11. Use the button at the top of this page.

How much does EF1 cost?

$129.95. That includes the folio case, Hot Start Guide, 4 rechargeable AAA batteries, and a USB-C charging cable.

How is EF1 powered?

EF1 runs on 4 rechargeable AAA NiMH batteries that charge over USB-C with the included cable. Charge for about 4 hours before first use. Use rechargeable batteries only. Wall adapter not included.

What comes in the box?

The EF1 handheld flight computer, a custom-fit folio case that opens flat at your kneeboard or on a desk, the printed Hot Start Guide in the case's interior pocket, 4 rechargeable AAA NiMH batteries, and a USB-C charging cable.

Do I need the app to use the EF1 handheld?

No. EF1 is a standalone flight computer and every calculation runs on the device itself. The EF1 E6B app is a separate companion for planning on the ground and reference in the cockpit.

How do I update the software?

Download the update from this page, connect EF1 over USB-C, and drag the update file to the device drive.

The EF1 E6B App

Is the app available now?

Yes. The EF1 E6B app is on the App Store and Google Play today, with a 7-day free trial so you can put every feature through its paces before you commit.

Does the app work without a signal?

Yes. The app works fully offline. Every E6B calculation, your cross-country plans, weight and balance, and holding pattern entry all run on the device, so nothing stops working at altitude or on a ramp with no bars.

What does the app cost after the free trial?

The app is free to download, with paid subscription levels after the 7-day free trial. Current prices are listed on the App Store and Google Play.

Orders & Support

What is your return and warranty policy?

EF1 comes with a 7 year limited warranty from the date of purchase for the original purchaser. The warranty does not cover batteries. For a warranty claim, email support@entireflight.com with your serial number and proof of purchase.

You have 30 days after receiving your order to request a return. See our refund policy for details.

How do I register my EF1?

Registration is coming soon. It isn't required for your warranty.

Who do I contact with a question?

Email support@entireflight.com and a person who flies will answer.
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