IRIS TEXAN II Technical specifications

FOR SIMULATION USE ONLY
OFFICIAL PUBLICATION
2023.001-AFM
AIRCRAFT FLIGHT MANUAL
IRIS TEXAN II
Date of Issue: 4th November 2023
Software Version: V1.0.0

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PREFACE
The year 2005 marked a significant milestone for IRIS Simulations, as it was the
genesis of our journey. It was during this formative year that we birthed our very
first aircraft, the T-6/A Texan II. This aircraft, our inaugural creation, quickly soared
to prominence, capturing the hearts of pilots and aviation enthusiasts alike. Over
the ensuing years, it cultivated a devoted and growing consumer base that has
remained unwavering in their support.
Fast forward to 2015, a pivotal moment arrived as we embarked on a
comprehensive redevelopment endeavour. The result was the birth of a reimagined
classic – the IRIS Texan Driver. Through meticulous attention to detail and a
commitment to excellence, we resurrected this beloved aircraft from the ground up,
infusing it with fresh assets that breathed new life into the experience.
And now, in the year 2023, we proudly present our latest offering, a technological
marvel custom-tailored for the Microsoft Flight Simulator platform. This new
creation stands as a testament to our unceasing dedication to pushing the
boundaries of realism and immersion in the world of flight simulation.
The team at IRIS has poured their passion and expertise into crafting this aircraft,
with countless hours spent building and rigorously testing it. Our hope is that you,
our fellow aviators, will derive as much joy from flying it as we have derived from
bringing it to life.
Happy flying and thank you for joining us on this exciting adventure through the
skies!
David “DLB” Love-Brice
Director
IRIS Simulations Pty Ltd

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ACKNOWLEDGEMENTS
IRIS Simulations would also like to thank the online community from the
‘Virtual Royal Air Force’ for their testing and evaluation of the IRIS Texan II
multiplayer functionality (and frequent fun in the Mach Loop!)
Visit their website for more information on their roleplay simulation community!
IRIS Simulations would also like to credit the following additional individuals and
businesses for their support and involvement in the production of this product.
Original Concept Artwork
Magnus Almgren
Digital Media
Ross Mackerracher (Spectre Sim Shorts)
Quality Assurance (Team Texan)
Robbo, Fenix, Jakey, Matt, Roebuck, Spectre, Aero, Bug, Novawing24, Grumpy,
Jimmie, Matt S & Zach.
Programming Support
Huge thanks to Dino Cattaneo @ Indiafoxtecho for his permission to use elements
of the Indiafoxtecho F-35 avionics into the Texan II product.
Visit his Facebook page to follow his awesome work!

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TRADEMARKS
All trademarks, logos and brand names are the property of their respective owners.
All company, product and service names used in this product or website are for
identification purposes only.
Use of these names, trademarks and brands does not imply endorsement.
AUTHORITY
Users are to regard this Aircraft Flight Manual as an authoritative publication for
this product. It is compiled from data available from public operating & technical
sources.
These instructions provide you with a general knowledge of the simulated aircraft,
its characteristics, and specific normal operating procedures. Instructions in this
manual are for a pilot inexperienced in the operation of the simulation aircraft.
DESIGN SOURCES
All references to produce this product are from publicly available sources.
Where required information was not available, modifications were made to provide
an expected level of detail for simulation products of this type.
As such IRIS Simulations Pty Ltd cannot guarantee the accuracy of the product or
its component parts.
INTENDED USE
This product is for entertainment purposes only.
In accordance with the IRIS Simulations Pty Ltd EULA, this product cannot be used
as part of any real-world aviation training.
This product does not cover all aspects of flight operations; accordingly, it may
contain errors, limitations, and variations from the actual aircraft.
Should you require use for other applications or purposes, please contact
[e-mail] to discuss your requirements.

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APPLICABILITY
This Flight Manual applies to the IRIS TEXAN II for Microsoft Flight Simulator
(MSFS), produced and published by IRIS Simulations Pty Ltd.
OPERATING INSTRUCTIONS
This manual provides the best possible operating instructions, however, on
occasions these instructions may prove to be a poor substitute for sound judgment.
Adverse weather, terrain and other considerations may require modification of the
procedures listed.
PERMISSIBLE OPERATIONS
The Flight Manual takes a ‘positive approach’ and normally states only what you can
do. Unusual operations and configurations are prohibited unless specifically
covered herein.
CONTROL AND IDENTIFICATION MARKINGS
The use of block capitals in the text, when identifying switches, controls etc.
indicates the actual markings on that item.
AIRSPEEDS
All airspeeds quoted in this manual are ‘indicated’ unless otherwise stated.
USE OF THE FLIGHT MANUAL
To use the Flight Manual correctly, it is essential to understand the division of the
manual into its sections and the subsequent division of the sections. Each section
has a table of contents, and best use will be obtained from the Manual by becoming
familiar with the table of contents for each section. The index enables easy
reference to a particular topic or item by page number.

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FREQUENTLY ASKED QUESTIONS
The following are frequently asked questions during testing.
Q. Why can’t I open/close the canopy?
A. To close the canopy, make sure the CFS Handle Safety Pin has been removed and
the engine is shut down. To open it, make sure the canopy is unlocked and the
engine is shut down. If the above conditions are met, the canopy handle should
work and the canopy open.
Q. Why do my textures differ in resolution at different points in the aircraft?
A. Cockpit textures do differ in resolution throughout the product. These are in
keeping with memory usage across medium end systems, and especially looking
toward to Xbox Compatibility.
We have focused on high detail where it is needed (decals and the like) and lower
where it is deemed non-essential.
It is our opinion that while not to everyone’s liking, it does not necessarily affect the
product in a significant way.
Q. I am a Real World Texan II pilot; can I use this for flight training?
A. This is not a training aid, nor is it permitted for being used on any other platform
than Microsoft Flight Simulator. For more information, please refer to the
INTENDED USE paragraph on Page 4.
Q. After landing, why doesn’t my thrust reverser work?
A. The TEXAN II doesn’t have reverse thrust.
Q. I can see the HUD outside the scope of the HUD combiner glass, how do I fix this?
A. This is caused by the limitations of MSFS and the XML coding language which is
used for the TEXAN II HUD symbology.
Q. Some of my gauges are blurry, how do I fix this?
A. This can be addressed by setting your antialiasing settings to DLAA mode.
Q. How do I add static weapons to my aircraft?
A. The two Mexican Airforce and 33rd FTS aircraft can have weapons added via the
CONFIG page. For all other aircraft, manually adding 1068lbs of payload to the
stores entry will show static weapons.

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Q. I have found a bug or would like to request a suggestion, where do I go?
A. Our online issue tracker is available to submit bugs via the link below.
IRIS TEXAN II Submit a Bug Form
https://wkf.ms/3QF2JiM
If you want to see the status of an issue, or if your issue has been submitted before,
please visit the following link to view the online issue tracker.
IRIS TEXAN II - Issue Tracking System (Public)
https://view.monday.com/5420738157-cc30b43777dc271d8352c9897f2a63dc?r=use1

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INTENTIONALLY BLANK

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UPDATING/INSTALLING
IMPORTANT – IF YOU ARE MANUALLY UPGRADING YOUR PACKAGE FROM A
PREVIOUS VERSION, PLEASE DELETE THE PREVIOUS VERSION FIRST!
This package is distributed both on the Microsoft Marketplace, Orbx Central and
other vendors.
If you have purchased the package though the Microsoft Marketplace or through
Orbx Central and you have followed the on-screen instructions, no further action is
required from your end, as the plane should be available in the aircraft selection
menu as the other default planes and should be automatically updated.
If you have purchased the package directly from the IRIS Simulations storefront and
the aircraft is provided as a .zip file containing the iris-aircraft-texan folder, simply
copy and paste it into your COMMUNITY folder.
NOTE: The exact location of the folder will depend on your selection where you have
installed Microsoft Flight Simulator.
Once you have indicated where your COMMUNITY folder is, just follow the on-
screen instructions.
NOTE: If you DO NOT know where the community folder is located, you can follow
this procedure:
Within Microsoft Flight Simulator loaded, go to Options / General.
1. Click on "Developers" which you will find at the bottom of the list on the left.
2. Switch Developers Mode on.
3.On the Dev Menu select Tools / Virtual File System.
4. The Community folder location can be found under "Watched Bases"

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NOTE: If copying the contents into the Community folder fails because files names
are too long you can proceed as follows:
1. Extract the package folder on your desktop or in any known and easily acceptable
location.
2. Rename the package folder from “iris-aircraft-texan” to anything short and
recognizable such as “IRIS-TEXAN” or just “TEXAN”.
3. Place the renamed package folder in the Community folder.
Alternatively for EXPERT WINDOWS USERS ONLY, it is possible to edit the
"LongPathsEnabled” entry in the Windows registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem
Once the aircraft is installed in the Community folder, it will be available in the
aircraft selection menu next time you start Flight Simulator.
If Flight Simulator was running during the install process, you need to close it and
restart it for the aircraft to appear.

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NOTES FROM THE DEVELOPERS
FLIGHT MODEL
Please note that the IRIS TEXAN II flight model is designed to work with the new
Flight Simulator flight model (Options->General Options->Flight Model->MODERN).
This is the default option for Microsoft Flight Simulator, and it should be your
setting unless you have changed it.
Some users may have changed the flight model to "LEGACY" to use older FSX
derived add-on planes. In this case you must revert to the “MODERN” flight model.
With the modern flight model, the IRIS TEXAN II should behave well and be quite
stable and easy to fly within the regular flight envelope.
With the above considered, please note that different control devices, sensitivities
and calibration may provide a wide range of results. You may need to adjust your
control sensitivities and settings to find a setting that feels comfortable for your
experience.
Please also note that while this flight model is designed to perform accurately
across the flight envelope, stall and spin characteristics may differ to that expected.
INTERACTION
Please note that the IRIS TEXAN II is designed to work with the ‘LOCK’ Cockpit
Interaction System (Options->General Options->Accessibility->Cockpit Interaction
System->LOCK).
This is the default option for Microsoft Flight Simulator, and it should be your
setting unless you have changed it.
Some users may have changed the flight model to ‘LEGACY’ for personal
preference. While the IRIS TEXAN II does function with the ‘LEGACY’ interaction
system, knobs and switches will operate differently than designed.
DISPLAY GRAPHICS
The IRIS TEXAN II has been designed using XML based graphics on displays. If you
experience blurry gauges and displays, please change your antialiasing setting to
‘DLAA’
(Options->General Options->Graphics->Anti-Aliasing->DLAA).

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HEAD-UP-DISPLAY (HUD)
The TEXAN II HUD can exhibit a small white artifact at night on some systems. To
address this, perform one of the following corrective actions:
1. Turn NANOVG rendering OFF.
(Options->General Options->Experimental->NANO VG->OFF)
2. Reduce the brightness of the HUD.
3. Switch the HUD from TEXAN II to F-35 Symbology via the Right MFD
CONFIG Page.
FLIGHT MANAGEMENT SYSTEM (FMS)
The IRIS TEXAN II doesn’t feature FMS functionality outside of the scope required to
display flightplan data.
TRIM AID DEVICE (TAD)
We recommend that you turn on AUTORUDDER in the assistance settings to
simulate the use of the Trim Aid Device (TAD).
(Options->Assistance Options->Piloting->AUTO-RUDDER).
NOSE WHEEL STEERING (NWS)
To operate the Nose Wheel Steering, please ensure you have a control binding tied
to the ‘TOGGLE G LIMITER’ function. This will toggle the Nose Wheel Steering on and
off.
SMOKE GENERATORS
To operate the smoke effects on any of the aircraft for aerobatics, please ensure
you have a control binding tied to the ‘TOGGLE WING LIGHTS’ function.
Operation of the smoke system through the above function is dependent on the
following factors:
1. The SMOKE option in the CONFIG page on the MFD should show ARMED
and not OFF.
2. When you then use the control binding for the LOGO LIGHTS, ‘SMOKE’ is
indicated on the EICAS to indicate that smoke is being dispensed.

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TABLE OF CONTENTS
Page No
SECTION 1
DESCRIPTION AND OPERATION
14
SECTION 2 NORMAL PROCEDURES 164
SECTION 3
OPERATING LIMITATIONS
194
SECTION 4 FLIGHT HANDLING CHARACTERISTICS 198

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SECTION 1
DESCRIPTION AND OPERATION
TABLE OF CONTENTS
Page No
CHAPTER 1 DESCRIPTION AND OPERATION - GENERAL
THE AIRCRAFT 16
TEXAN II: A MODERN TRAINING AIRCRAFT
SUPPORTIVE COURSEWARE 18
THE COCKPIT 19
THE ENGINE 23
FIRE WARNING SYSTEM 34
FIREWALL SHUTOFF HANDLE 35
FUEL SUPPLY SYSTEM 37
ELECTRICAL POWER SUPPLY SYSTEM 40
BRAKE SYSTEM 45
HYDRAULIC SYSTEM 46
LANDING GEAR SYSTEM 48
NOSE WHEEL STEERING 53
WING FLAPS 54
SPEED BRAKE SYSTEM 55
FLIGHT CONTROL SYSTEM 56
DOORS AND HATCHES 61
CANOPY 63
ENVIRONMENTAL CONTROL SYSTEM (ECS) 67

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INSTRUMENTS 74
INTEGRATED AVIONICS SYSTEM 77
EMERGENCY LOCATOR TRANSMITTER (ELT) 154
STANDBY VHF CONTROL HEAD 154
LIGHTING SYSTEM 155
ON-BOARD OXYGEN GENERATING SYSTEM (OBOGS) 160

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SECTION 1
CHAPTER 1
DESCRIPTION AND OPERATION
THE AIRCRAFT
TEXAN II: A MODERN TRAINING AIRCRAFT
The T-6B Texan II is a versatile and advanced turboprop training aircraft used by the
United States Air Force (USAF), United States Navy (USN), and several other
international military forces.
With its roots dating back to the early 2000s, the Texan II has become a staple in
military pilot training programs, equipping new aviators with the essential skills
and knowledge needed to operate high-performance military aircraft. This two-
page brief aims to provide an overview of the T-6B Texan II, including its design,
capabilities, and its role in training the next generation of military pilots.
IRIS TEXAN II General Arrangement

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ENGINEERED FOR EXCELLENCE
The T-6B Texan II is the result of a collaborative effort between Beechcraft (now
part of Textron Aviation) and the Raytheon Company, which later became part of
Raytheon Technologies. It was developed as part of the Joint Primary Aircraft
Training System (JPATS) program, a cooperative effort between the USAF and USN
to streamline pilot training.
Key Features:
Design: The T-6B Texan II sports a robust and modern design. Its single turboprop
engine provides reliable and efficient power, while its tandem seating arrangement
allows for a student pilot and instructor to fly together. The aircraft's design
emulates the feel and handling of high-performance military aircraft, preparing
trainees for more advanced stages of their pilot training.
Performance: Powered by a Pratt & Whitney Canada PT6A-68 turboprop engine, the
T-6B can achieve a top speed of approximately 320 knots (370 mph) and a
maximum altitude of over 31,000 feet. This performance range allows trainees to
experience a wide array of flight conditions, including high-speed flight and low-
level navigation.
Avionics: The T-6B Texan II is equipped with advanced avionics, including a glass
cockpit with a modern heads-up display (HUD) and hands-on throttle and stick
(HOTAS) controls. This technology mirrors what trainees will encounter in
contemporary military aircraft.
Training Capabilities: The T-6B is an excellent platform for basic flight training,
instrument flying, and navigation exercises. It introduces trainees to critical skills
such as aerobatics, formation flying, and advanced cockpit management.
Additionally, the aircraft is adaptable for simulated weapons training.
ROLE IN MILITARY TRAINING
The T-6B Texan II plays a pivotal role in the initial training stages for prospective
military pilots. Its capabilities make it an ideal choice for training pilots who may
later transition to jet-powered aircraft. The aircraft's inclusion in the training
pipeline ensures that new aviators receive a solid foundation before moving on to
more advanced and specialized aircraft, enhancing safety and performance in
military aviation.

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SUPPORTIVE COURSEWARE
The inclusion of supportive video courseware for the Texan II product is a strategic
move that underscores our commitment to enhancing user experience and
ensuring our customers receive the utmost value from their purchase.
The IRIS TEXAN II, already known for its exceptional quality and versatility, will now
be accompanied by a comprehensive video courseware package that serves as an
invaluable resource for both novice and experienced users. These video courses
have been meticulously crafted to provide step-by-step guidance, tips, and insights
on maximizing your enjoyment of the product.
By incorporating video courseware, we aim to bridge the gap between product
purchase and proficient utilization, ensuring that users can harness the TEXAN II
full capabilities with confidence. Whether it's honing specific skills, troubleshooting,
or exploring advanced features, these video resources will be easily accessible and
empower our customers to become IRIS TEXAN II experts.
This initiative not only sets a new standard for customer support but also reinforces
our TEXAN II product as the top choice for those seeking an all-inclusive, user-
friendly, and educational solution. We are dedicated to simplifying the learning
curve and elevating the Texan II experience, making it a valuable addition to any
enthusiast’s toolkit.
Visit our YouTube page for more videos!

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THE COCKPIT
Figure 1-3 Front Instrument Panel
1. MASTER CAUTION/DISPLAY PANEL 9. DEFOG SWITCH
2. HEAD UP DISPLAY 10. AUDIO CONTROL PANEL
3. UP FRONT CONTROL PANEL 11. FLAP POSITION INDICATOR
4. BACKUP FLIGHT INSTRUMENT 12. LANDING GEAR CONTROL PANEL
5. MULTIFUNCTION DISPLAY 13. EMERGENCY GEAR EXTENSION HANDLE
6. EMERGENCY LOCATOR TRANSMITTER 14. MASTER ARM SWITCH
7. PARKING BRAKE HANDLE 15. DIGITAL CLOCK
8. VENT CONTROL LEVER 16. ANGLE OF ATTACK INDEXER

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Figure 1-4 Rear Instrument Panel
1. MASTER CAUTION/DISPLAY PANEL 6. LANDING GEAR CONTROL PANEL
2. UP FRONT CONTROL PANEL 7. FLAP POSITION INDICATOR
3. BACKUP FLIGHT INSTRUMENT 8. DIGITAL CLOCK
4. MULTIFUNCTION DISPLAY 9. ANGLE OF ATTACK INDEXER
5. AUDIO CONTROL PANEL