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The Complete Beginner’s Guide to DCS World
Welcome to the world of Digital Combat Simulator (DCS World), the ultimate flight combat simulation that brings the thrill of…
X Plane 12 Mission Generator Guide for Beginners.
X Plane 12 Mission Generator Guide for Beginners.
A Mission Generator could be the answer to flying the same old patterns in X-Plane 12? Do you wish you could inject dynamic missions that could evolving weather challenges or add immersive voice alerts — all without writing a single line of code yourself?
With the power of FlyWithLua and the magic of ChatGPT, we can use a mission generator LUA script to create custom missions for your favorite aircraft has never been easier. From cross-country IFR challenges to turbulent VFR scenarios, you can generate interactive, story-driven flights in minutes. It’s really simple!
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The Mission Generator
CREATE Challenging SCENARIO’s
The mission editor script can help you with some imagination to create fun and interesting challenges with our mission generator guide. The limits are X Plane 12 and your imagination. Imagination can create from changing weather conditions, forcing a divert to a time critical mission, adding emergencies and what about mission objectives and voice alerts? Yes its all possible!.
Add time based scenario challenge where you need to deliver a valued customer or item to their destination on time having voice alerts for you to prompt actions then there is the pass or fail?
LUA Scripts are incredibly flexible and easy to create using ChatGPT and using it as a mission generator Script guide we can run scripts automatically providing you load into the required start airport in the correct aircraft type for the scenario. Unfortunately it cannot do a full GPS program of your flight ATM.
In This Mission Generator Guide.
In this guide, we’ll show you an example of what you can achieve with the mission generator and exactly how to turn your mission ideas into flyable adventures.
We can also generate automated voice prompts and more. All you need is Chat GPT (FREE VERSION) and your imagination and a few clicks! Create challenges for friends to fly and see how much fun you have.
Add an extra layer of complexity you could even fly multiplayer as long as your both running the script and its designed for multiplayer both could run the mission script.
Overall Mission Generator Design.
Mission: Baron 58 from Parafield (YPPF) to Renmark (YREN):
This mission isn’t too long to fly and presents a few basic piloting skill challenges as well as piloting mental challenges requiring the pilot or crew to make decisions on speeds, track, altitudes and more to remain safe and get to their destination without issue and onlitme.
Once you enter the sim with your chosen aircraft at your chosen location the LUA script will run automatically.
AIRCRAFT: BARRON 58
LOCATION: YPPF – Parafield Airport
DESTINATION – RENMARK AIRPORT
FLIGHT PLAN – ALTITUDE 7500ft Cruise Altitude.
TRACK to FLY- 56 Degrees (Allowing 8 deg Magnetic Variation True 64Deg)
CRUISE SPEED – 170 Knots
TIME TO RENMARK – 36-40 Minutes
DISTANCE – 104 NM
Requirements to Fly the Mission:
- X-Plane 12 installed.
- FlyWithLua plugin installed DOWNLOAD LATEST HERE (May 2025) From LetsFlyVFR.com
- The Lua script file:
Parafield_RENMARK_LUA. Download from LetsFlyVFR.com directly. - ChatGPT – Free version is perfectly fine.
- A Script to tell CHAT GPT what you want – How to do it – and ensure its a LUA SCRIPT with AUTO START. (See how it’s created below.)
🛠️ How to Install FlyWithLua for X-Plane 12
To install FlyWithLua, first download the latest FlyWithLua NG for X-Plane 12 from the official X-Plane.org Forum. Unzip the download and move the entire FlyWithLua folder into your X-Plane 12/Resources/plugins directory.
Once installed, you’ll find a new Scripts folder inside FlyWithLua—this is where you place any custom .lua scripts like your mission files. Restart X-Plane 12, and FlyWithLua will automatically load your scripts and begin running them in the background.
Remember to READ THE README FILE – It WIll tell You how to remove the POP-UP WINDOW in Xc Plane 12.
How to Create the SCRIPT!
Creating the script simply requires you opening CHATGPT or possibly any other AI tool you have available. (Again – FREE VERSION is FINE)
In the Prompt Box you can ask it to create the mission: Here is the exact request I made to CHAT GPT. Its simply a request but ensure you ask for a LUA SCRIPT:
1: First Request to Chat GPT:
- 1. Can you help me write a LUA SCRIPT File to create a mission for the X Plane 12 Barron 58 flying from Parafield Airport YPPF to Renmark.
2. Cruise altitude should be set at 7500 Ft +/- 200 ft. (Flight Plan requirements)
3. The weather should start out cloudy but get worse till it is at VFR minimums.
4. Turbulence should also get worse as the flight continues with a need to climb to 10,000 to reduce the impact if turbulence.
5. Pilot should know to reduce speed to VNO for the aircraft to prevent damage.
In the above request I was thinking about what I wanted to create. It’s very basic and you can add a lot more conditions such as mission goals to which you can assign on-screen messages such as MISSION SUCCESSFUL or MISSION FAILED etc.
This I haven’t included these as yet as this was my VERY FIRST attempt so you can see why its basic. I want even sure it was possible it will work! It does!
2: Second Request – Further Clarifying AUTO START.
I then asked Chat GPT about AUTO START of the LUA SCRIPT in X Plane 12. It said it was possible and then updated the LUA file to the one available below.
This ensures the script runs as long as you load into X Plane 12 at Parafield YPPF in a Barron 58 aircraft. You can load in on the Runway engines running if you wish or start cold and dark at the ramp. Your choice! It does not matter.
Additional Polishing of Script.
The Answer from CHAT GPT : Great question — here’s how to activate and use your custom FlyWithLua mission script in X-Plane 12 using the Baron 58 from Parafield (YPPF) to Renmark (YREN):
GUIDE HOW TO USE THE SCRIPT.
How to Start the Mission:
Step 1: Install the Script
- Move the downloaded Lua file:
Parafield_Renmark.LUAScript into the folder:X-Plane 12/Resources/plugins/FlyWithLua/Scripts/
Step 2: Launch X-Plane 12
- Start X-Plane 12.
- Select the Baron 58 aircraft.
- Set your starting airport to Parafield Airport (YPPF) — ideally on the ramp (cold & dark or engines running; both will work).
- Start your flight. Good Luck!
Step 3: Script Automatically Runs!
- The script will auto-start because of this line:
if PLANE_ICAO ~= "BE58" then return endThis ensures the mission only runs only in the Baron 58. - You’ll hear an initial voice alert: “Mission started. Cruise at 7500 feet. Weather will deteriorate.”
AGAIN: ENSURE you load into X Plane 12 at PARAFIELD YPPF in a Barron 58 and the LUA Script will Auto Execute.
Mission Progress Overview:
| Phase | What Happens |
|---|---|
| Start at YPPF | Cloudy skies, good visibility, light turbulence. |
| 5 mins in | Cloud base drops, visibility worsens, turbulence increases. |
| 10 mins in | Visibility hits VFR minimums, turbulence becomes severe. |
| Under 9500 ft | Turbulence is stronger. |
| Above 9500 ft | Turbulence is reduced (rewarding the climb decision). |
| Arrival at YREN | Within 3 NM, GPS set to YREN triggers mission completion alert. |
Optional: Use the Kneeboard Briefing
Open the included PDF for an in-cockpit-style briefing. You can print it or load it in your iPad/kneeboard app to follow along.
Final Tips If the Script Does Not Work:
- Don’t disable FlyWithLua warnings if the script seems inactive.
- Make sure the script is in the Scripts/ folder and not in Scripts (disabled).
- If you hear no alerts, make sure sound and voice system are enabled in X-Plane.
- You can edit the Lua script to tweak weather intervals if desired. Load it back into CHATGPT and tell Chat GPT what changes you want to make and regenerate the new .LUA file.
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The ACTUAL Script.
NOT SCRIPT – DONT COPY THIS LINE – Copy all below and save in NOTEPAD with a name like Parafield_RENMARK.LUA and place in your folder.
— Parafield to Renmark Mission for X-Plane 12 – Baron 58
— Requires FlyWithLua NG
— Run only if correct aircraft and location
if PLANE_ICAO ~= “BE58” then return end
— Basic vars
local mission_started = false
local timer = 0
local turbulence_active = false
local severe_turbulence = false
local arrival_announced = false
— Altitude and safety
local cruise_alt = 7500
local altitude_deviation = 200
local turbulence_alt = 9500
local VNO = 165 — Max structural cruise speed in KIAS
— DataRefs
dataref(“ias”, “sim/cockpit2/gauges/indicators/airspeed_kts_pilot”)
dataref(“altitude”, “sim/cockpit2/gauges/indicators/altitude_ft_pilot”)
dataref(“latitude”, “sim/flightmodel/position/latitude”)
dataref(“longitude”, “sim/flightmodel/position/longitude”)
dataref(“gps_dest_id”, “sim/cockpit/radios/gps_nav_id”, “string”)
— Functions
function say(msg)
if SUPPORTS_SOUND then
speak(msg)
end
end
function set_weather(vis, clouds, turb)
set(“sim/weather/visibility_reported_m”, vis * 1609.34)
set(“sim/weather/cloud_base_msl_m[0]”, clouds * 0.3048)
set(“sim/weather/turbulence[0]”, turb)
end
function distance_to(lat1, lon1, lat2, lon2)
local R = 3440.065 — NM
local dlat = math.rad(lat2 – lat1)
local dlon = math.rad(lon2 – lon1)
local a = math.sin(dlat/2)^2 + math.cos(math.rad(lat1)) * math.cos(math.rad(lat2)) * math.sin(dlon/2)^2
local c = 2 * math.atan2(math.sqrt(a), math.sqrt(1-a))
return R * c
end
— Renmark Airport Coordinates
local yren_lat = -34.1969
local yren_lon = 140.674
— Mission Initialization
function start_mission()
mission_started = true
timer = 0
say(“Mission started. Cruise at 7500 feet. Weather will deteriorate.”)
set_weather(10, 4000, 0.1)
end
— Main logic loop
function mission_tick()
if not mission_started then
— Auto-start if near YPPF (Parafield)
local dist = distance_to(latitude, longitude, -34.7933, 138.628)
if dist < 3 then
start_mission()
end
return
end
timer = timer + get("sim/operation/misc/frame_rate_period")
-- After 5 minutes
if timer > 300 and timer < 600 then
set_weather(6, 3000, 0.2)
end
-- After 10 minutes
if timer > 600 and timer < 900 then
set_weather(3, 2500, 0.5)
say("Weather worsening. Turbulence moderate.")
end
-- After 15 minutes
if timer > 900 and not severe_turbulence then
set_weather(3, 2000, 0.8)
say("Severe turbulence. Climb above 9500 feet to reduce effects.")
severe_turbulence = true
end
-- Turbulence safety warning
if severe_turbulence and altitude < turbulence_alt and ias > VNO then
say("Reduce speed below VNO to prevent structural damage.")
end
-- Arrival Detection
local d = distance_to(latitude, longitude, yren_lat, yren_lon)
if d < 3 and string.match(gps_dest_id, "YREN") and not arrival_announced then
say("Arrival at Renmark detected. Mission complete.")
arrival_announced = true
endend
do_every_frame(“mission_tick()”)
Conclusion
We hope you enjoyed the mission. Yes it’s simple with a few curve balls thrown in and fun to try. I hope you now give it a try to make your own missions. If you do please link them for me in the comments so I can fly your missions too. I look forward to it!
It may be a great place to have a MISSION LIBRARY here on LETSFLYVFR.COM so our fellow X Plane 12 Pilots can enjoy our Missions. What do you think of a Mission VAULT?
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Additional Information
Please download the mission script from the link below as well as the Kneeboard briefing for your flight.
DOWNLOAD LUA SCRIPT HERE for MISSION – It’s Direct from LETSFLYVFR.com
DOWNLOAD KNEEBOARD HERE – Direct from LETSFLYVFR.com
Note: Parafield & RENMARK Airport MAPS INCLUDED on the Kneeboard.
Note I have included Pictures of points of interest From:
PARAFIELD AIRPORT – TRURO AIR PARK – MURRAY RIVER HIGHWAY BRIDGE CROSSING (Note the Highway goes right past the airport if you get lost and your low altitude & finally RENMARK AIRPORT.
Enjoy Your Mission.
Author
Brendon McAliece (Aka Gunnie) is a military veteran with 23 years working on Jet Fighters, their weapons systems and ejection seat/module systems as well as munitions and R&D. Involved with flight simulation since the 1980s, he has flown all the major flight simulators over the years.
He is an Australian expat who has lived in Malaysia, UK, Saudi Arabia and more recently Thailand. He is a multi-lingual blogger who loves to share his life experiences here on LetsFlyVFR.com and DreamingGuitar.com, with his lifestyle and Travel experiences Blog plus his Dreaming Coffee website.
Learn More @ DreamingGuitar.com – DreamingCoffee.com – LetsFlyVFR.com
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