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Links to Add-ons for Microsoft Flight Simulator and Lockheed Martin Prepar3D
Flight Planning - Charts - Routes - Missions
Also see AppsFlight DecksHardware and Panels pages for avionics
AC Soft Home of ACS-GPS and "The full package" Swissair MD11.Plus panels, gauges, adventure generator and crew dialog, pushback gauge and payload editor. All for pre-FSX MSFS AC soft
Airport Nav Finder On-line, community-maintained, database of details of thousands of worldwide airports. Contains category, runway, frequency and weather details, local nav aids and a list of other airports close by. Airport Nav Finder logo
Dauntless Software Dauntless sell real-world and simulator aviation products including SimPlates X - over 30,000 real IFR approach plates for airports throughout the world with an integrated worldwide airport/facilities directory. Also free aircraft checklists. Dauntless Software
EasyFMS EasyFMS & External EasyFMC are separate software products for FS9, FSX and P3D that use the flight sim's own navigation database and offer advanced navigation systems. Designed for airliners, you can use them with any aircraft. EasyFMS image
EFASS NG EFASS (Electronic Flight Assistant) NG is a flightplanning and moving-map tool that can export flightpland to other add-ons. Lots of useful features e.g. autopilot link. Compatible with X-Plane, FS9, FSX & P3D. Previous version... Electronic Flight Assistant
Electronic Flight Bag From AivlaSoft, Electronic Flight Bag (EFB), provides all the aeronautical charts (with moving map function), and other relevant information to perform a flight. Saves a lot of time. Network and 'touch' options. For FSX, and P3D.  AivlaSoft logo
Free AirMap Free AirMap from Gemini Software is a Garmin style moving map standalone program that integrates with FS9, FSX and P3D. It shows your aircraft's position and flight plan. Many map types to choose from. Gemini Software logo
Free Nav
DB Group
FD-FMC, is a simplified FMS designed to equip Project Airbus Team aircraft. It has an ergonomic, intentionally non-realistic interface, and true vertical navigation functions, which on other freeware offers. Downloads.
FS Aircraft Dynamics & Navdata Freeware material that Hervé Sors designed for MSFS as well as navaids and Magnetic Variation data updates for FS9, FSX and P3D. Also aerodynamics, aircraft data and airfile design data and links. FS Aircraft Dynamics & Navdata logo
fsAerodata fsAerodata enables a global update of the built-in default aeronautical navigation database in FSX and P3D to current real world info. Updates follow 28-day AIRAC cycles. Payware, plus you’ll need a Navigraph subscription. fsAerodata
FSBuild Ernie Alston's payware automatic or manual flight planner for MSFS and other simulators. Exports plans to and between other navigation system add-ons, GPSs, FSNav, and many others. No longer updated. Forum. FSBuild logo This site provides free access to basic, dynamically generated charts of over 20,000 airports world wide. Each chart includes navigational aids and GPS waypoints. logo
FSMap Award winning FSMap brings a realistic simulation of a leading map reading device to FS9 and FSX flight simulation. Comes with a selection of European VFR charts. Use as stand-alone or as a panel gauge.  Simple flight planning. FSMAp logo
FS Tramp Successor to FS Navigator - a fully integrated, moving navigational map plug-in for FSX, MSFS & P3D. Can fly entire flight plan route and holdings through autopilot. AI and multiplayer aircraft on map. Annual payable license required. FS Tramp logo
FuelPlanner On-line fuel planner estimates fuel and generates load sheets. Enter ICAO origin and destination codes and press the Planner button. Advanced options for registered users (free). Plus API and FSX add-on client. FuelPlanner logo
Ideal Flight Takes the burden out of setting up a FSX flight. One click creates a completely new flight each time with weather, flight plan, and briefing. It works with any add-on, and its features makes it a useful addition to FSX and P3D. Ideal Flight logo
Little Navmap Free, open source flight planner, moving map and navigation and airport info app for Windows, Mac or Linux. Supports MSFS, P3Dv4 and X-Plane. Based on flight simulator's default and add-on scenery data. Support Forum at Avsim. Little Navmap logo
Navigraph Navigraph was founded in Sweden in 2003 and provides flight sim users with up-to-date data and charts via a paid subscription. FMS data (AIRAC cycles) and airport and enroute charts available for desktop or portable devices. Navigraph logo
Our Airports Open-data details of airports and heliports all over the world. Includes general pilot and passenger information and a direct link to a satellite view of each airport. Useful for general information. Our Airports logo
Professional Flight Planner X PFPX is a new planner developed by real-world pilots and The aim is to support the serious flight simmer to produce complex, flight plans. Professional Flight Planner X logo
Pilot's Assistant Brian Tooby's pilot's toolset provided as an automated Excel spreadsheet for helping flight planning, including fuel, navigation, aircraft data and much more. Also Pilot's Assistant page packed with FS2002 & FS2004 tips. Pilots Assistant logo
Plan-G is a donation-ware VFR flight planning tool for FSX, FS9, P3D and X-Plane. It features a map interface with topographical detail. Plans are fully editable. Can do the planning outside of FS. VATSIM support & radio stack. Plan-G logo
PRO-ATC/X PRO-ATC/X from Pointsoft replaces and upgrades ATC in FSX. Its implemented Flight Planner is able to calculate a whole route simply by defining departure and destination airports. PRO-ATC/X also adds an active co-pilot to assist you. Pro-ATC X logo
Rolling Cumulus Our aim is to provide FSX & P3D pilots with the best missions, that can take you to unique and rare airfields across the globe. The missions usually include a dozen or more flights, weather themes, custom buildings and surroundings. Rolling Cumulus logo
Route Finder Routefinder is an online world-wide aeronautical database. Request a route between two points, and the program will find the shortest path and provide a simple flight plan. Route Finder
SimBrief SimBrief is a virtual flight dispatch center. Registered users can access an on-line dispatch system, generating in-depth flight plans for many specific aircraft types containing weather forecasts, NOTAMs, fuel planning and much more. SimBrief
SimTours Net A catalogue of flights and destinations for MSFS 2004 and FSX - includes FX Missions. The destinations include famous cities and buildings, impressive terrain, challenging airports. Also has useful flight sim info and calculators. logo A Delco Carousel IV-an Inertial Navigation System (gauge) for MSFS. All displays, keys and switches work exactly as the real ones. Computes, manages and displays true heading, distance between waypoints, and more. Forum logo
Sky is a way to view US aeronautical charts online. Always current, and always free, FAA Sectional Charts are used for VFR flight planning. The Terminal Area Charts cover areas around major airports. Pan and zoom. logo
TOPCAT TOPCAT (Take-Off and Landing Performance Calculation Tool) is a highly realistic, easy-to-use planning tool. It brings into a single application all of the calculations required to plan for safe and repeatable take-offs and landings. Topcat logo
UK Aeronautical Information UK real aeronautical and aviation information from the UK's CAA and NATS. Includes free detailed airport charts. NATS logo
VfrFlight A free VFR flight planning tool developed by real world private pilot Łukasz Kulasek who uses it for real world planning and FSX and P3D training. Has some unique and useful features. Check out the video tutorials. VfrFlight logo
VoxATC Provides a simulated ATC environment for FSX & P3D with integrated voice recognition. Now what you say does matter, the controllers will be listening to your requests. VoxATC runs alongside FSX and P3D and replaces its native ATC. VoxATC logo