FlightReady E6B2.1.0 - App Store

FlightReady E6B is a modern flight computer with the most complete set of aviation functions, conversions, and utilities for planning and flying.

WHY PILOTS USE FLIGHTREADY E6B
. Accurate. Conversions use exact defined factors, and airspeed and altitude calculations use the full U.S. Standard Atmosphere, maintaining accurate calculations above 36,000 feet.
. Explained. Every function and conversion has built-in help that describes what it calculates, how to use it, and the formulas and conventions behind it.
. Fast. Star the functions you use most to keep them at the top of the main menu, and your favorites sync to your other devices through iCloud. Open functions from Search, Shortcuts, Control Center, the Lock Screen, or the Action button.
. Easy to use. Change a field's unit from the menu beside it, and every related field on the screen follows. Results automatically carry over to related functions, reducing repeated data entry.
. Night-flight friendly. Dark mode uses a red-shifted amber color scheme designed for use in a dark cockpit.

PLAN LEG
▸ Heading & Groundspeed: true heading, groundspeed, and magnetic and compass heading
▸ Time & Distance: leg time, distance, or groundspeed
▸ Required True Airspeed: the true airspeed and heading needed to make a planned groundspeed
▸ Fuel Consumption: fuel required, fuel flow, or endurance
▸ Point of No Return and Equal Time Point, with ETAs

AIRSPEED, ALTITUDE, AND WEATHER
▸ Airspeed: actual TAS and Mach, plan Mach, plan TAS, and total air temperature
▸ Altitude: pressure, density, and true altitude
▸ Cloud Base: cloud base AGL and MSL, and relative humidity, from temperature and dew point

WIND
▸ Wind Component: headwind and crosswind
▸ Unknown Wind
▸ Wind Correction Angle

CLIMB & DESCENT
▸ Climb/Descent Rate: required gradient in ft/nm, percent, and degrees, and rate in ft/min
▸ Top of Descent: determine when to begin descent
▸ Gradient Conversion: percent, degrees, and ft/nm

PERFORMANCE
▸ Rate of Turn and Turn Radius for any bank angle and airspeed
▸ Standard Rate Bank Angle and Standard Rate Turn Radius
▸ Hydroplane Speed for rotating and non-rotating tires
▸ Load Factor in Level Turn
▸ Pivotal Altitude, AGL and MSL

NAVIGATION
▸ DME Arc Distance
▸ Lead Turn Distance: how far before a fix to start the turn
▸ Thunderstorm Cell Height from radar tilt and distance
▸ Time/Distance to Station from a VOR or NDB bearing change
▸ Holding Pattern: determine entry type and visualize the holding pattern

AERODYNAMICS
▸ Lift
▸ Power & Torque

WEIGHT & BALANCE
▸ C.G. & Moment: enter any two of weight, CG, and moment to get the third
▸ C.G. Shift: enter any three values to get the fourth, such as how much weight to move
▸ CG % of MAC

CONVERSIONS
▸ Temperature: °C, °F, K, and °R
▸ Distance: nautical miles, statute miles, kilometers, feet, and more
▸ Speed: knots, mph, km/h, ft/min, m/s, and Mach
▸ Pressure: inHg, mbar/hPa, kPa, psi, mmHg, and more
▸ Fuel @ 15°C: gallons, liters, pounds, and kilograms of 100LL, Jet-A, Jet-B, JP-8, and water
▸ Weight & Mass, Area, Liquid Volume (US and imperial), Volume, Density, Power, and Torque

TIME UTILITIES
▸ Time Calculator: add, subtract, multiply, and divide times, in decimal or formatted time, including h:m
▸ Flight Log Calculator: block and flight times from your out, off, on, and in times
▸ Standard Calculator
▸ IFR Timer: a countdown that keeps running when you lock your phone, with a notification when time is up

SETTINGS
▸ Results to as many as four decimal places
▸ Day, Night, and Auto appearance

Version History ▸ Added holding pattern function. Determine entry type and visualize the holding pattern on a compass ring. Drag the aircraft or inbound course to see how the entry changes. 2.1.0 5d ago Major update, with a complete redesign, new flight planning tools, and more accurate calculations.

A NEW LOOK
• Every menu and screen has been redesigned, with support for your preferred text size.
• Performance, Navigation, and Aerodynamics are now grouped under Functions.
• Night now uses a red-shifted amber color scheme designed for use in a dark cockpit.
• Auto switches between Day and Night to match your device's Light or Dark appearance.

NEW TOOLS
• Point of No Return and Equal Time Point, with ETAs from your time off.
• Required True Airspeed finds the true airspeed and heading needed to make a planned groundspeed.
• Cloud Base estimates the base of cumuliform clouds and the relative humidity from the surface temperature and dew point.
• Time/Distance to Station calculates time and distance to a VOR or NDB from a bearing change.
• Lead Turn Distance tells you how far before a fix to start a standard rate turn.

EASIER TO USE
• Favorites: star the tools you use most to keep them at the top of the main menu. Favorites sync across your devices through iCloud.
• Open functions from Search, the Shortcuts app, Control Center, the Lock Screen, or the Action button.
• Every function and conversion has help that explains what it calculates, how to use it, and the conventions it uses.
• Weight & Balance solves for any field. Enter any two of weight, CG, and moment to get the third.
• The IFR Timer keeps counting when you leave it or lock your screen, and notifies you when time is up.
• Change a field's unit from a menu right beside it.
• The Time Calculator adds an h:m format for logbook times.

MORE OPTIONS
• Leg Time can be shown in minutes on Time & Distance and Fuel Consumption.
• Airspeed accepts Total Air Temperature as an entry as well as OAT.
• Hydroplane Speed gives results for both rotating and non-rotating tires.
• Pivotal Altitude adds a pylon elevation and an MSL result.
• New units: hectares, metric horsepower, and imperial fluid ounces.

CALCULATION IMPROVEMENTS
• The standard atmosphere now includes layers above 36,089 feet, improving Mach and true altitude calculations at high altitude.
• Corrections to Mach numbers, Wind Correction Angle, Thunderstorm Cell Height, fuel densities, and more.
• The keypad's decimal key now matches your region's number format. 2.0.0 Sep 25 Bug fixes and performance improvements 1.17.0 Feb 18 Bug fixes and performance improvements 1.16.0 06/04/2025 Bug fixes and performance improvements 1.15.0 02/11/2025 Optimizations for iOS 18
Bug fixes and performance improvements 1.14.0 11/04/2024 Bug fixes and performance improvements. 1.13.0 01/24/2024 Bug fixes and performance improvements. 1.12.0 07/16/2023 ▸ Additional conversions
▸ Optimized for iOS 16 1.11.0 09/13/2022 Bug fixes and performance improvements 1.10.0 08/20/2022 Bug fixes and performance improvements 1.9.0 06/09/2021 Bug fixes and performance improvements 1.8.5 05/20/2021 Bug fixes and performance improvements 1.8.4 05/13/2021 ▸ Changed name of Descent Rate function to Climb/Descent Rate
▸ Bug fixes and performance improvements 1.8.3 02/10/2021 ▸ When selecting a field, any value in the field is automatically selected. Start typing to replace the value. Back button, Clear, and All Clear are still available for editing.
▸ Bug fixes and performance improvements

Changes in 1.8.0:
----------------
▸ Improved Keyboard: Added next and previous buttons for quicker data entry
▸ New: Functions > Plan Leg: Added hh:mm:ss units option - tap on the unit label next to the entry field to change the units.
▸ New: Added density, dry volume, power, and torque conversions
▸ New: Added Lift, Power & Torque functions to Extra Functions
▸ New: Added percent operation to Standard Calculator
▸ Fixed issue where some users could not enter negative altitude values in Plan Leg functions
▸ Time Calculator has been tweaked for users who need to add logbook times in hh:mm.
▸ Fixed an issue in the Standard Calculator where the order of operations was sometimes not being applied properly
▸ Optimized for iOS 14
▸ Misc other fixes and performance enhancements 1.8.2 10/23/2020 ▸ Bug fixes and performance improvements

Changes in 1.8.0:
----------------
▸ Improved Keyboard: Added next and previous buttons for quicker data entry
▸ New: Functions > Plan Leg: Added hh:mm:ss units option - tap on the unit label next to the entry field to change the units.
▸ New: Added density, dry volume, power, and torque conversions
▸ New: Added Lift, Power & Torque functions to Extra Functions
▸ New: Added percent operation to Standard Calculator
▸ Fixed issue where some users could not enter negative altitude values in Plan Leg functions
▸ Time Calculator has been tweaked for users who need to add logbook times in hh:mm.
▸ Fixed an issue in the Standard Calculator where the order of operations was sometimes not being applied properly
▸ Optimized for iOS 14
▸ Misc other fixes and performance enhancements 1.8.1 10/05/2020 ▸ Improved Keyboard: Added next and previous buttons for quicker data entry
▸ New: Functions > Plan Leg: Added hh:mm:ss units option - tap on the unit label next to the entry field to change the units.
▸ New: Added density, dry volume, power, and torque conversions
▸ New: Added Lift, Power & Torque functions to Extra Functions
▸ New: Added percent operation to Standard Calculator
▸ Fixed issue where some users could not enter negative altitude values in Plan Leg functions
▸ Time Calculator has been tweaked for users who need to add logbook times in hh:mm.
▸ Fixed an issue in the Standard Calculator where the order of operations was sometimes not being applied properly
▸ Optimized for iOS 14
▸ Misc other fixes and performance enhancements 1.8.0 09/29/2020 Bug fixes 1.7.4 03/26/2020 Minor fixes relating compatibility with iOS 13

support@flightready.net
--------------------------------------
Added in Version 1.7.0

----------------------------------
This version is a significant update with lots of new functions that you won't find in any other E6B.
▸ Added Extra Functions menu option with the following new functions:
▹ Rate of turn for angle of bank and airspeed
▹ Turn radius for angle of bank and airspeed
▹ Required bank angle for standard rate turn
▹ Turn radius for standard rate turn
▹ Hydroplane speed
▹ Load factor in level turn
▹ Pivotal altitude
▹ DME arc - distance along arc
▹ Thunderstorm cell height (from radar tilt and echo distance)
▸ Functions > Plan Leg > Heading & Airspeed: Added deviation field
▸ Functions > Plan Leg > Wind: Added wind correction angle function
▸ Functions > Plan Leg > Fuel Consumption: Added lbs/hr and kg/hr units
▸ Weight & Balance: Added kg-mm units
▸ Conversions > Fuel: Added JP-8 fuel
▸ Time Utilities > Flight Log Calculator: Totals now shown in both hh:mm and decimal formats
▸ Settings: Default precision used in Conversions changed to 2 decimal places (e.g., 0.01)
▸ Settings: Added website link and support contact

This is the last version that will support devices running iOS versions older than iOS 12. The next version will require iOS 12 or higher. 1.7.3 09/20/2019 ▸ Extra Functions > Thunderstorm Cell Height: Fixed error in function.

support@flightready.net
--------------------------------------
Added in Version 1.7.0

----------------------------------
This version is a significant update with lots of new functions that you won't find in any other E6B.
▸ Added Extra Functions menu option with the following new functions:
▹ Rate of turn for angle of bank and airspeed
▹ Turn radius for angle of bank and airspeed
▹ Required bank angle for standard rate turn
▹ Turn radius for standard rate turn
▹ Hydroplane speed
▹ Load factor in level turn
▹ Pivotal altitude
▹ DME arc - distance along arc
▹ Thunderstorm cell height (from radar tilt and echo distance)
▸ Functions > Plan Leg > Heading & Airspeed: Added deviation field
▸ Functions > Plan Leg > Wind: Added wind correction angle function
▸ Functions > Plan Leg > Fuel Consumption: Added lbs/hr and kg/hr units
▸ Weight & Balance: Added kg-mm units
▸ Conversions > Fuel: Added JP-8 fuel
▸ Time Utilities > Flight Log Calculator: Totals now shown in both hh:mm and decimal formats
▸ Settings: Default precision used in Conversions changed to 2 decimal places (e.g., 0.01)
▸ Settings: Added website link and support contact

This is the last version that will support devices running iOS versions older than iOS 12. The next version will require iOS 12 or higher. 1.7.2 09/17/2019 Fixed a crash that occurred when tapping Extra Functions when in Night Mode. Our apologies, and thank you to all the users who reported this issue.

----------------------------------
This version is a significant update with lots of new functions that you won't find in any other E6B.
▸ Added Extra Functions menu option with the following new functions:
▹ Rate of turn for angle of bank and airspeed
▹ Turn radius for angle of bank and airspeed
▹ Required bank angle for standard rate turn
▹ Turn radius for standard rate turn
▹ Hydroplane speed
▹ Load factor in level turn
▹ Pivotal altitude
▹ DME arc - distance along arc
▹ Thunderstorm cell height (from radar tilt and echo distance)
▸ Functions > Plan Leg > Heading & Airspeed: Added deviation field
▸ Functions > Plan Leg > Wind: Added wind correction angle function
▸ Functions > Plan Leg > Fuel Consumption: Added lbs/hr and kg/hr units
▸ Weight & Balance: Added kg-mm units
▸ Conversions > Fuel: Added JP-8 fuel
▸ Time Utilities > Flight Log Calculator: Totals now shown in both hh:mm and decimal formats
▸ Settings: Default precision used in Conversions changed to 2 decimal places (e.g., 0.01)
▸ Settings: Added website link and support contact

This is the last version that will support devices running iOS versions older than iOS 12. The next version will require iOS 12 or higher.

support@flightready.net 1.7.1 09/16/2019 This version is a significant update with lots of new functions that you won't find in any other E6B.

▸ Added Extra Functions menu option with the following new functions:
▹ Rate of turn for angle of bank and airspeed
▹ Turn radius for angle of bank and airspeed
▹ Required bank angle for standard rate turn
▹ Turn radius for standard rate turn
▹ Hydroplane speed
▹ Load factor in level turn
▹ Pivotal altitude
▹ DME arc - distance along arc
▹ Thunderstorm cell height (from radar tilt and echo distance)
▸ Functions > Plan Leg > Heading & Airspeed: Added deviation field
▸ Functions > Plan Leg > Wind: Added wind correction angle function
▸ Functions > Plan Leg > Fuel Consumption: Added lbs/hr and kg/hr units
▸ Weight & Balance: Added kg-mm units
▸ Conversions > Fuel: Added JP-8 fuel
▸ Time Utilities > Flight Log Calculator: Totals now shown in both hh:mm and decimal formats
▸ Settings: Default precision used in Conversions changed to 2 decimal places (e.g., 0.01)
▸ Settings: Added website link and support contact

This is the last version that will support devices running iOS versions older than iOS 12. The next version will require iOS 12 or higher.

support@flightready.net 1.7.0 09/14/2019 ▸ Bug fixes

support@flightready.net 1.6.1 08/29/2019 ▸ General bug fixes and stability improvements

support@flightready.net 1.6.0 02/05/2019 ▸ Bug fixes and improved stability

Please submit feature requests to support@flightready.net 1.5.2 01/03/2018