Please Read This Flight Manual

Document conventions

Credits and acknowledgments

End User License Agreement (EULA)


Installing Draken

Installing in Flight Simulator X

Uninstalling Draken

First startup

Texture resolution

About the model

Interior model

Exterior model

Repaint kit

Flight dynamics

Limits and restrictions

Inverted flight


Normal operating procedures

Before starting the engine

Starting the engine

Taxi and takeoff




Final approach and landing

Emergency procedures


Hydraulic system failure

Engine fire

Superstall recovery


Cockpit layout overview

Flight data system

Backup altimeter

Backup attitude indicator

Backup airspeed indicator

AOA indicator

G-force indicator


Cabin pressure indicator

Warning and indicator lights

Warning lights panel

Master Warning Light

Gear Warning Light

Communication radios

Radio control panel ME3

Radio control panel ME1

Radio control panel ME2

PN-837/A SSR transponder

PN-79 IK transponder

Navigation systems

FLI 35 system

PN-594/A system

Manual tuning unit


Autopilot modes

Trim knobs

Override conditions

Radar and weapons

Radar system



Hydraulic system

Electrical system

Emergency Power Unit (EPU)

Fuel system


Landing gear

Stall warning system

Oxygen system

Features and special effects

Options panel




Drop tanks

Drag chute

Contrails and smoke

Chocks and covers

Pilot animations

About Saab 35 Draken



Export versions

Appendix 1: J 35J check lists

Appendix 3: FR28 Radio channels

Appendix 4: PN-594 Nav stations

Appendix 5: Technical data

Appendix 1: Cockpit glossary

Electrical panels and switches

Engine panel

Warning lights


Radar and weapons panels

Circuit breakers

Appendix 6: Prepar3D commands

Flight Manual: Bookmark J 35J Draken 5.12021-04-24


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Thank you for purchasing our simulation of Saab 35 Draken, the legendary cold war jet fighter/interceptor that served in four national air forces during five decades.

This manual only covers installation and use of the latest Bookmark Draken simulations for Lockheed Martin Prepar3D. The Microsoft Flight Simulator versions have their own documentation.

For technical support and feedback, please refer to the Bookmark Simulations website.


The 3D model for Draken was modeled in Autodesk Gmax with the help of original Saab drawings and technical manuals, countless photos, and many hours spent in real Draken cockpits.

The textures were mostly hand drawn in Adobe Photoshop. Photos were not used directly for texturing, with the exception of some minor parts of the panel bitmaps and some of the decals on the wings and tail fin. All photos used in this way are either the property of Bookmark or in the public domain.

Bookmark has not knowingly put anything into Draken that is not owned by Bookmark or unrestricted for commercial use. If you see anything in the installation package or in the documentation that you belive is a copyright violation on our part, please contact Bookmark.

Please Read This Flight Manual

The Flight Manual describes all the simulated systems, gauges and controls in the aircraft and how to use them. At the end of the document is an appendix with technical data, radio frequency tables, procedure check lists and a short glossary.

This is a complex simulation of an old military jet. Most of the instruments and switches in the cockpit are not labeled in English, and they may sometimes not be very intuitive regarding their function. We strongly recommend that you read through the Installation and Normal operating procedures chapters before continuing.

All components of the current version that are present in the simulations are described in the Flight Manual. Some systems and functions that are not simulated are described anyway, either because they are visible in the cockpit or because they are related to one of the simulated functions.

Document conventions

Font styles and colors that are used in this documentation to indicate special content:

Ctrl-D Right-click

Key sequence or mouse action

Toggle Gear

Prepar3D command


Label in the cockpit


Warning light or indicator on the instrument panel


Cross-reference link to another section of this manual

Bookmark Simulations

Link to a website or other external resource

This is additional non-critical information that may enhance your experience of Draken.

This indicates important information. Ignoring it may result in degraded performance, system malfunctions or losing control of the aircraft.

This is a code example

Credits and acknowledgments

Design Team

Lead designer: Thomas Nilsson, Bookmark Simulations

Although I am presently the only one left on the development team, this has never been a one-man effort. Credit is due to all those who have contributed to this project over the years, but especially to:

Intellectual property information

SAAB is a registered trademark of Saab AB.

Rolls-Royce is a trademark of Rolls-Royce plc.

Prepar3D is a trademark of Lockheed Martin Corporation.

Microsoft is a registered trademark of Microsoft Corporation.

Adobe and Photoshop are registered trademarks of Adobe Systems Incorporated.

Gmax is a trademark and 3ds Max a registered trademark of Autodesk, Inc.

Bookmark Simulations and Bookmark Flightsim Software are trademarks of Bookmark AB.

Any other trademarks or product names that may be referred to in this document are the property of their respective owners.

The textures for two instruments are partly based on photos taken by Lars Ekelund/Flygvapenmuseum, licensed under the Creative Commons Attribution 4.0 International License.

Aircraft model, textures, sounds, effects and all other content is copyright Bookmark AB where nothing else is stated.

Please read the End User License Agreement (EULA) for additional information about ownership and licensing.

End User License Agreement (EULA)

This End User License Agreement, EULA, is a legal agreement between you (either an individual or a single entity) and the author Bookmark AB, BOOKMARK, regarding this computer software, DRAKEN, and any media included in the installation.

By purchasing and/or installing DRAKEN, you agree to be bound by the terms of the EULA. If you do not agree to the terms in the EULA you must uninstall DRAKEN from any computer where it is installed. Disagreeing with the terms in the EULA after purchasing DRAKEN will not make you eligible to a refund.

BOOKMARK reserves the right to change the terms of the EULA at any time. Changes to the EULA will be announced on the Bookmark Simulations web site. Failure to receive notification of a change does not make those changes invalid. The current version of the EULA is available on the Bookmark Simulations web site.

DRAKEN is protected by copyright laws and international copyright treaties, as well as any other intellectual property laws and treaties that may apply.

BOOKMARK retains ownership of all intellectual property rights in and to DRAKEN, including copies, improvements, enhancements, derivative works and modifications thereof. Your rights to use DRAKEN are limited to those expressly granted by the EULA. No other rights with respect to DRAKEN or any related intellectual property rights are granted or implied.

Rights and limitations

  • You may install your own licensed copy of DRAKEN on any number of computers for your own personal use.

  • You may not distribute DRAKEN or make it available for download without the written permission of BOOKMARK.

  • You may not include DRAKEN, or any individual files taken from it, in another archive or compilation without the written permission of BOOKMARK, with the following exception: When creating and distributing additional textures (repaints) you may include parts of the original textures from DRAKEN, provided that the creator of the original work, BOOKMARK, is credited.

  • You may not use DRAKEN or any part of it to create derivative works or products that could be used for the same purpose as DRAKEN.

  • You may not use DRAKEN for commercial purposes, including but not limited to charging a fee for its use, without the written permission of BOOKMARK.


BOOKMARK expressly disclaims any warranty for DRAKEN. DRAKEN is provided as is without warranty of any kind, either expressed or implied, including, without limitation, the implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The entire risk arising out of use of DRAKEN remains with you.

In no event shall BOOKMARK be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or any other pecuniary loss) arising out of the use of or inability to use DRAKEN, even if BOOKMARK has been advised of the possibility of such damages.