Support / FAQs
¶ Does ForeFlight provide preconfigured Performance Profiles for my aircraft type?
Use our Aircraft Performance Directory tool to search for your aircraft. If we don't provide preconfigured Performance Profiles for your aircraft type, check out this video to see how you can set up by-altitude profiles for your aircraft instead.
¶ ForeFlight does not provide any preconfigured Performance Profiles for my aircraft model - how can I add one?
Performance Plus customers can use ForeFlight’s web application (plan.foreflight.com) to create “by-altitude” profiles, allowing you to input performance data for every altitude in your aircraft’s operational range. Watch the How-To video for performance planning on the web to see how you can do that. If you can provide your aircraft’s detailed performance data from the manufacturer we may be able to add your aircraft to our database of pre-configured models. Email email@example.com if you would like to request that.
¶ My aircraft already has a performance profile set up on fltplan.com - how can I import it into ForeFlight?
Although there isn’t any way to directly import aircraft data from fltplan.com, the by-altitude profile setup page on ForeFlight’s web application has the same fields and layout as fltplan.com’s model, allowing you to simply copy the data from fltplan.com verbatim. Watch this video on setting up by-altitude profiles for a step-by-step walkthrough.
¶ My cruise speed and fuel burn are not accurate, how do I adjust the profile?
Cruise speed and fuel adjustments are available for all ForeFlight Performance Profiles using the model adjustment sliders when viewing the performance models for a given profile, allowing you to adapt our model to your aircraft if the two differ consistently. Fly at least 10 flights while closely tracking your actual fuel burn and flight times. After each flight, compare your actuals to the time and fuel burn predicted by ForeFlight. If the actuals differ from the predicted values in a consistent and predictable fashion (such as actual always burns ~3% more fuel than predicted), use the model adjustment sliders for that cruise profile to adjust the ForeFlight model closer to yours. Go to More > Aircraft and select the aircraft to modify, then tap “Performance Profiles” and select the profile to change. Move the “Cruise Speed” and/or “Cruise Fuel Flow” adjustment sliders to the amount needed as determined by your testing.
¶ I climb and/or descend at a different speed schedule than what ForeFlight provides. What can I do about this?
Currently, we're limited to one climb and one descent model for each ForeFlight Performance Profile. If you want the performance results to most closely match your actual results you should fly the given climb and descent models. If you fly different models the accuracy of ForeFlight’s performance results will be affected, less on longer flights and more on shorter flights.
¶ How is time and fuel to alternate calculated? Why can't I select a different cruise profile or altitude for my alternate?
The performance results for your alternate are calculated based on a direct route from your destination airport to the alternate, using the same Performance Profile as the rest of the flight and using a cruise altitude appropriate for the length of the flight to the alternate.
¶ Why do the performance summaries on the Maps view and the Flights view give different results for the same route?
Since the Maps view doesn’t allow you to enter payload or fuel details or an alternate airport, it calculates performance results assuming minimum payload weight (which corresponds to the minimum crew requirement for the selected aircraft: either 1 or 2), the Minimum Fuel Required fuel policy, and no alternate. If the settings you configure for the same route on the Flights view differ from these, the performance results will also differ.
¶ I see slightly different time/fuel results for the same flight when looking at the performance summaries on the Maps and Flights views vs when looking at Route/Altitude Advisor and the Navlog. Why the difference?
There are actually two distinct performance engines calculating performance results for a flight at the same time - ForeFlight’s cloud-based engine that requires you to be online in order to access it (the online engine), and ForeFlight’s built-in engine that can be used when disconnected from the internet (the mobile engine). The online engine integrates millions of variables in calculating aircraft performance and adheres to complex routing constraints, while the mobile engine can calculate accurate time and fuel results for a known route. Due to various factors, these two engines will return slightly different performance results for the same route, and the places where you see these differences reveal what results come from which engine: the performance summaries on the Maps and Flights views, and all the performance numbers in the body of the Flights view (in the Fuel and Weight Verification sections) are calculated by the mobile engine; the performance results in the Navlog and Route/Altitude Advisor are calculated by the online engine. As a result of this, the Navlog and Route/Altitude Advisor and associated performance calculations are not accessible when offline (aside from cached routes and wind data), while the other parts of the app will continue to calculate performance when offline.
¶ Can I calculate performance when offline?
Yes, performance results will continue to be calculated on the Maps and Flights views when offline. However, the Navlog and Route/Altitude Advisors will not return performance results when offline, apart from cached routes and wind data.
¶ Is approach time/fuel included in the performance results for a flight?
Yes, ForeFlight will calculate approach time/fuel and include it in the performance results for a flight.
¶ I know that my aircraft can climb direct to a certain flight level at these conditions, yet ForeFlight is telling me to reduce my altitude to a lower flight level. Why?
ForeFlight checks for cruise capability at a given altitude, not climb capability. So although your aircraft might be able to climb to that altitude, the combination of weight, temperature, and altitude may prevent your aircraft from generating enough thrust to accelerate from the slower climb speed to the faster, desired cruise speed. In such cases, ForeFlight will suggest a lower altitude where the desired cruise speed can be attained relatively quickly after level-off. Another option that sometimes (but not always) works to resolve this is to select a slower cruise profile without changing the altitude.
¶ Is reserve fuel calculated?
No, reserve fuel for each aircraft is set as a default value in the Aircraft Edit page, but can be altered for any flight in the Fuel section of the Flights view.
¶ What is “block fuel”?
Block fuel refers to the total quantity of fuel in the aircraft’s tanks before engine start. Block fuel is the same as “Total Fuel at Start” at the bottom of the Fuel section of the Flights view.
¶ The Flights view Navlog is showing waypoints not in the route string that have a format like “200BKE” - what do those mean?
For long legs, the Navlog will print a virtual waypoint every 100 NM out from the next actual waypoint. In this case “200BKE” is a virtual waypoint 200 NM out from VOR BKE. This allows predicted time elapsed and fuel burned checks against actual values on long legs. These checks could highlight wind changes or non-normal fuel burns.
¶ What does “ELW” in the Flights view Navlog stand for?
ELW stands for “estimated landing weight”.
¶ Does ForeFlight’s Weight & Balance tool support %MAC for jet aircraft?
¶ What is the AviationCloud Autoroute?
The AviationCloud Autoroute is a valid, wind- and temperature-optimized route that is generated for flights between any pair of airports in any part of the world, no matter how small or remote they are. The route is generated to suit your aircraft type, selected performance profile, and to take into account the most recent environmental data and forecasts for your departure time. AviationCloud routes are fileable and will typically offer the best performance results out of all the routes shown - even for small or remote airports without previously flown or preferred routes.
¶ How do I view and print a Navlog in the Flights view?
ForeFlight generates a detailed Navlog after every change you make to a flight while connected to the internet. Tap the Navlog button in the top left of the Flights view while viewing a flight plan to access the Navlog, and tap the Send To button in the top right to email or print the Navlog. You can also email and print the Navlog using the Send To button on the top right of the main Flights view, without viewing the Navlog.
¶ How do I adjust Start/Taxi Fuel and Reserve Fuel?
Start/Taxi Fuel and Reserve Fuel are not calculated for each flight, but are based on the default values set for each aircraft. You can change these values from the Aircraft Edit Page by going to More > Aircraft and selecting the aircraft you want to edit, then scrolling down to the Fuel section to adjust the values. If you only want to adjust those values for a single flight without changing the default values for other flights, you can do so while viewing a flight plan in the Flights view: scroll down to the Fuel section of the planning form and tap on the blue numbers next to Start/Taxi Fuel and Reserve Fuel to edit those values for the flight. This capability is only available with the Performance Plus plan.
¶ All of my aircraft have orange alert triangles next to them after upgrading to Performance Plus - what do they mean and how do I remove them?
The alert triangles indicate that you need to select an aircraft model from our model library for each of your aircraft, since some of them might have ForeFlight Performance Profiles and other information associated with them.
Tap on an aircraft to enter the Aircraft Edit Page, then tap Aircraft Type near the top to search for your aircraft model. Whatever type code you previously entered for that aircraft will autofill in the search field, so finding and selecting the correct model and variant should be easy. If your aircraft doesn’t appear in the list, you can also search by make and model.
If your aircraft model has ForeFlight Performance Profiles associated with it, the number of such profiles is indicated in blue text below the model and variant. Tap on one of the aircraft model options to select it. If your aircraft has ForeFlight Performance Profiles, ForeFlight may prompt you to update certain data fields with new information. Tap “Fix” to accept the changes.
¶ Are the Performance Planning features available as an add-on to other subscription plans?
No, you must have the Performance Plus plan if you want to access the Performance Planning features.
¶ Will adding the Performance Planning capabilities have any effect on my iPad’s or iPhone’s speed?
The advanced Performance Planning features that are available with the Performance Plus plan should not have any noticeable effect on your device’s speed.
¶ Does Performance Planning support step-climb capabilities on long flights?
Both ForeFlight Mobile and ForeFlight on the web support step-climb capabilities for long flights. The step-climb legs can be viewed within the detailed, printable Navlog. Step-climb information is available for customers on Performance Plus, Business Performance, and Military Flight Bag Performance plans.
¶ Does Performance Planning support ETOPS/ETP capabilities?
ETOPS/ETP capabilities are supported by ForeFlight’s online planning engine, but they are not yet available for general use. We plan to make these capabilities available in a future release.
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