Decaff's Addons

Here are my Addons that I have developed individually or collaboratively with other members of the YSFlight Community. For many of my addons, I have included blank versions of the aircraft. Unless otherwise stated in the Addon description, User Guide or Modding permissions, if there is a blank model included in the pack, there is implied permission to repaint the aircraft without having to ask me. However, there is the expectation that you will credit all those credited in the read me if one exists. If there is no Read Me file, it is implied that I am the only person you need to credit.

All-In-One Download Version 20230129

For convenience I have packaged up my addons into a single download. This will be occasionally updated when packs are released. See the readme file included for specific addon modification policies and notes. Pack should be compatible with Windows, Mac and Linux versions of YSFlight.

v20210603 - Fixed .lst file issues that caused errors. Now loads without any errors when loading YSFlight.

v20210609 - Added Mirage2000 HQP:GAC pack.

v20220501 - Added latest C Series/A220 pack.

v20230129 - Added C-130J, 737s. Added [DECAFF] to beginning of IDENTIFY lines and added Substitute stock aircraft for all models. Fixed 707 landing gear issue.


This weapon pack will be kept up-to-date and will work for all of my aircraft packs. You may use these weapon skins for any project as long as you credit Decaff_42.

Ground Object Addons

Queen Elizabeth Class Carrier

HMS Queen Elizabeth (R08) is the first of a new class of ski jump aircraft carriers for the United Kingdom. Featuring two CIWS turrets, she can defend herself from pesky YSFlight attackers.

Map Addons

Philippines Islands Beta v1.0

The Philippines Island map was my first addon I released. I used a series of Army Topo Maps from 1950. The 10km grid squares and a few tools I had allowed me to create the map. Many Airports were made by Gunny from YSFHQ.

Strike Map

A fictional map designed for ground attack. Lots of fun to make and challenging for a beginner Air-to-Ground combat player to clear.

Philippines Islands Beta v2.0

This is the second beta release of the Philippines Islands. It extends to the furthest north point of the country. Depending on your computer you may experience some shaking on this map as it is large and has many elevation grids and ground objects. Many airports were made by Gunny from YSFHQ.

Flight Test Map

This is a simple map that is really just a blank .fld file with start positions at various altitudes, initial speeds and throttle settings. I use this map for collecting data as there is no clutter to render and take away from the data recording of the flight.

Oahu Race

Buzz the famous Waikiki Beach and the Honolulu Harbor on the technical White Course, or push the throttle into afterburner for the All-Out Red Course around the eastern part of Oahu. Thanks to Neocon for the help isolating Oahu from Griffon's Hawaii.

Aircraft Addons

Southwest Airlines Boeing 737-700

This mod of Takety's 737 from Kurosaki's repaint pack was my first attempt at aircraft modding. This was done during a day off from school during Superstorm Sandy to complete a request made on YSFHQ.

Download Link

NSAWC F/A-18C/D Aggressor Pack

This was my first attempt to extensively repaint a series of aircraft. I borrowed several mesh components from the YSAAF 2.0 F/A-18's, and this represented my first work to create simple animations (the canopy) and had significant DAT work.


A repaint of my CRJ-900 for a YSUpload addon challenge.

Malev 737-600

A pre-release of my 737 Next Generation pack that was not released due to animation difficulties in later models. Features the Malev 737-600 livery.

Southwest 737 Next Gen Pack

Another pre-release of the 737 Next Generation pack that was never released featuring the Southwest Airlines Livery.

Download Link

F/A-18D Aggressor Hornet Demo

A specially modified F/A-18D from my F-18 Pack for an airshow. Features updated flares from Oranleed, lights and missiles that move with the wingtips, and an improved DAT File.

Boeing 727 Pack

This was created from Skyline's base 727-200 mesh. It was my first addon where I created all the animations from scratch and I learned a lot about editing the mesh of the airplane for YSFlight. Features a detailed cockpit and animations.

Next Generation Boeing 737 Pack

This was a re-work of the NG 737s I previously worked on. After extensively editing the wing and flap systems I incorporated my scratch-built 737NG cockpit instrument panels. The base mesh was from Takety.

Download Link

Tu-95 "Bear"

Re-visited the Tu-95, my first attempt at scratch modeling, nearly a year after starting. Completely re-did the mesh and added in all the animations except the propeller animations which are from YSMajor's B-17G.

Download Link

Military Boeing 707 Pack

After creating 727 and 737 packs I asked Skyline for a 707 mesh and he answered. This pack featured the KC-135 and its derivatives which had the turbojet or low-bypass turbofan engines. I did all the animations, mesh edits and painting.

Tu-16 "Badger" Pack

Another scratch modeling creation, the Tu-16 was a project I decided to do because I thought that I could actually make the mesh. This pack features several variants as well as a custom made Kingfisher Missile.

H-6 Pack

The Chinese reproduction and several variants of the Tu-16 bomber known as the H-6. Features a refueling tanker as well as the all-yellow ground attack variant and custom Air-to-Ground missiles.

KC-135R Pack

A release of the KC-135R and RC-135R aircraft featuring the new CFM56 engine. The engine was heavily modified from a C-5 Galaxy and shrunk to scale.


A modification of the Tu-22 from the Active Armaments Industry pack featuring new decals, missiles and a round of mesh improvements.

Velocity XL RG

A general aviation aircraft that is generally home-made. This mesh was originally from Skyline, with a DAT file modified by Gunny from Oranleed.

 Links Coming Soon!

Download from Mediafire here

Mirror Download Link

Next Generation Boeing 737 Pack 2

This second 737 pack features 10 new high-detail aircraft with a mix of -700s and -800s from around the globe.

Decaff's Boeing 757 Pack

A collection of 22 aircraft from 8 different airlines. The pack heavily features the 757-200 and 757-200F with Rolls Royce Engines. I have included blank versions of all models of the 757 as well with both Pratt & Whitney and Rolls Royce engines.

Civilian 707 Pack

This pack contains four aircraft (707-320s) and a blank version of the passenger as well as the freight version. Feel free to paint both versions.

Boeing 717-200

This addon includes a detailed Hawaiian Airlines paint, along with the blank blender file. Also included are a lite and detailed cockpit. Do not modify the base model without my permission. You are free to repaint to your heart's content.


The product of my Aircraft Design class for a next generation business jet. Do not modify the base model without my permission. You are free to repaint to your heart's content.

Boeing 787 v1.1

The Boeing 787 is the first aircraft primarily made of composite materials. Now a detailed 787 comes to YSFlight! You are free to repaint these models.

Northrop F-20 Tigershark v1.1

The F-20 Tigershark now flies the YSFlight skies in High Detail. Version 1.1 introduces a minor DAT fix. Feel free to repaint and create derivative models.

Boeing 767 Pack v1.2

The Boeing 767 and its military derivatives are used around the world. Enjoy flying 3 passenger and 3 military versions in YSFlight. Feel free to create derivative models and repaints! Update fixes aileron and landing gear bugs.

Boeing 747-8 Pack

The newest Boeing 747 is now ready for the skies of YSFlight. Featuring 13 paint schemes across the passenger and freighter variants. Feel free to repaint the blank files included in the pack.

Bombardier C Series (CS-100 & CS-300)

The Bombardier C Series is a new regional jet by the Canadian manufacturer. This scratch model is now brought to YSFlight in HD quality. REPAINTS ONLY WITH PERMISSION. 

F-35 Pack - April 29, 2017

The F-35 Lightning II is the second 5th generation fighter jet for the United States and comes in three versions for different operational roles. Original model from CEP. Weapons folder overwrites all previous Decaff_42 weapons folders. See User Guide for modding permissions and lots of useful information about the aircraft.

See version 2 of this pack below for download.

Boeing 787 v2.1

Additional 787 repaints with updated Blank Models and parts to upgrade v1.1 787s to the new standard. Updated links for error corrections. Can overwrite previous v2 pack.

F-35 Pack v2.0.2 - 9 July 2019

More than 50 additional models armed with some new weapons and weapon configurations for your tactical fun! NOTE: This pack's structure reduces the download size but completely replaces the old F-35 pack. Delete the old F35 folder in user/decaff_42. Review the Read Me file for details and suggestions for flying the aircraft. Includes blank models for repainting as long as you follow the modding permissions listed in the Read Me File.

VMFA-125 Warlords (Fictional) F-35B Pack

A F-35B painted in VMFA-125 squadron colors from CVW-171 as part of a private request. Originally hosted on YS Repo and re-hosted here. Repaints of this model or re-use of decals from this model is not permitted without permission from YS CVW-171 leadership.

Mig-21 Pack v1.1

The Mig-21 is a supersonic jet fighter and interceptor aircraft, designed by the Mikoyan-Gurevich Design Bureau in the Soviet Union. This pack includes the Mig-21BIS and Mig-21-93 models. 

F-106 Pack - 07 January 2020 - Version 1.1

The F-106 Delta Dart, known as "Six" or the Ultimate Interceptor, was introduced into front-line service in 1959 and served with the USAF and USAF ANG until 1988. Armed with 1 Nuclear Rocket and 4 AIM-4 missiles it was designed to rapidly take out approaching bomber formations. This pack includes one of the most famous F-106's, an F-106A, SN 58-0787, from the 71st Fighter-Interceptor Squadron which landed relatively unharmed after the pilot ejected. The "Cornfield Bomber" has a special animation setup!

Special thanks to Ultraviolet (Waspe414) for help with the DAT files and creating the pilot and afterburner models.

You will need the latest Weapon Pack (found at top of page) for this pack.

Bombardier C Series Pack v20200315

Featuring 4 new paints from Air Baltic and Air Canada, this regional jet is now entering service with more airlines to the delight of many passengers. Come any enjoy the updated DAT file from Ultraviolet (Waspe414) as you wing your way though the skies of YSFlight.

Updated 15 March 2020 to fix DNM issue with the Air Canada aircraft. Thank you @david_mamefuji for alerting me of the issue!

C-130J Hercules Pack v20200711

Featuring 18 models of the C-130J and C-130J-30 aircraft, the latest iterations of this venerable air lifter now comes to the skies of YSFlight in better detail. This pack also contains a fictional SC-130J-30 aircraft in RAF colors for anti-submarine operations.

Blank models and part kits included for your modding pleasure!

You will need the latest Weapon Pack (found at top of page) for this pack.

C Series / A220 Pack v20210403

Featuring 9 new paint schemes from Air France, Jet Blue, Airbus House Colors, Breeze Airways, Korean Airlines 50 Year Celebration, Czech Airlines, and EgyptAir. The models previously released have been renamed to include the A220 designation. 

HQP:GAC Expansion - Mirage2000 Pack

Featuring 4 paint schemes and 2 blank models to expand the HQP:GAC style.

C Series / A220 Pack v20220501

Featuring 3 new paint schemes from Air Senegal, Air Manas, and Air Tanzania. Also fixes a DNM issue with the Airbus house color model released in the previous CSeries/A220 Pack.

Decal Packs

Decaff's Decals Pack (01 May 2022)

This update can overwrite any previous version of the Decal Pack. Feel free to use and modify these decals as long as you credit me. Please read the READ ME file for more information.

The latest iteration of my Decal Pack includes: