La fen�tre de configuration

In the Configuration Dialog, you can configure graphics features and simulation features. Each setting means:

[Default Tab]

Default Environment
You can choose DAY or NIGHT.

Default Airplane
The airplane chosen in this list will first show up in the airplane selection screen.

Default Field
The field chosen in this list will first show up in the create-flight dialog.

Default Position
The start position chosen in this list will first show up in the create-flight dialog.     

[Game Tab]

Black Out
If this box is on, when you apply a high G force, you will lose visibility gradually, and finally will be blacked out. (If high negative G force, will red out). 

Mid Air Collision
If this box is on, when you collided with another airplane, your airplane will get damage, and typically, will crash. If this box is off, your airplane will never collide with another airplane. 

Can Land Anywhere
If this box is checked, you can land anywhere.  However, if the speed is too fast (like more than 20kt) the airplane will vibrate violently, and ends up crashing or tail-striking.

Rudder Auto Coordination
If this box is on, computer automatically control the rudder to eliminate sideslip of the airplane. To be fair, it is applied to all airplanes flying (except recorded airplanes). In actual flight, a pilot has to use rudder pedal while turning so that the airplane will not have side slip. It is called "turn coordination". But, I guess many users do not have a rudder pedal, and it is a pain to coordinate a turn by keyboard. So you can turn on this box.

Precise Simulation
If this box is on, the program computes dynamics at least every 50ms. If this box is off, the program computes dynamics once when a screen is refreshed once. Usually, refreshing a screen takes more time than 50ms. So, if this box is off, the simulation is less precise. (I don't recommend you to turn off this box. You may try if this program runs really slow on your PC). 

Always show HUD
If this box is checked, HUD is shown even when you are looking at your airplane from the outside.

Do not Use Instrument Panel
If this box is checked, the program draws Head Up Display no matter if the airplane has an instrument panel or not.

Always Draw Player Name
If this box is checked, player name is always visible.

Draw Virtual Joystick
If this box is checked, small virtual joystick will be drawn on the screen while flying.

F8 Camera Delay
If this box is on, external airplane camera (assigned to F8 key by default) follows the airplane with some time delay.

Do not show an airplane on radar if it is below XXXX ft.
The airplane flying below XXXX ft and far from the player airplane will not be shown on the radar.

[Graphics Tab]

Draw Shadow
If this check box is on, the shadow of the airplane is drawn precisely when the airplane is flying low. If this box is off, still the shadow is drawn, but the shadow is roughly drawn. 

Draw Shadow of Dead Airplane
If this box is checked, the program draws shadow of crashed airplanes. 

Draw Ordinance
If this box is checked, the program draws ordinances loaded on the airplanes.

Draw Coarse Weapon
If this box is checked, the program draws weapons with less polygons so that it can draw scenes faster.

Horizon Gradation
If this check box is on, you'll see a gradation on the horizon. If this box is off, no gradation on the horizon. 

Draw Cloud
As it is. 

Solid Cloud / Flat Cloud
If Solid Cloud is chosen (default) the cloud will have some volume, otherwise (if Flat Cloud is chosen) the cloud will not have volume (just flat).

Airplane Graphics
Automatic : Draws high quality model when an airplane is close to the viewpoint, and low quality model when far away.
Always High Quality : Draw high quality model regardless of the distance from the viewpoint.
Always Coarse : Draw low quality model regardless of the distance from the viewpoint. 

Draw Light in Daylight
If this box is checked, runway lights and city lights are visible in DAY mode.

Smoke
Configure type of smoke, how long the smoke remains and the resolution of the smoke.

You can choose a type of smoke from: towel, solid, circle and noodle. Towel smoke looks like a lo---ng towel. Solid smoke is most similar to actual smoke. But solid smoke takes more time to draw than other types. Noodle smoke looks like a lo---ng noodle. It can be drawn quickly, but does not look nice. 

If you choose circle smoke, the smoke is drawn as a sequence of circles. it cannot be drawn very fast, also does not look good. So I don't recommend it. I just experimentally implemented this feature.

Remain ?? seconds, means as it is.

Draw every ?? steps specifies the resolution of the smoke. If you specify smaller number, the resolution becomes better, but the drawing will be slower. By default, smoke is drawn every 4 steps. 

[OpenGL Tab]

Fog
If this box is checked, the program draws fog, which increases reality a little bit.  Only available on OpenGL version.  This option, however, requires a card that can draw OpenGL graphics fast.

Z-Buffer Quality
It specifies quality of Z-Buffering in OpenGL version.  You can choose one of "LOW(FAST)", "HIGH", "VERY HIGH", and "SUPER HIGH."  Lower Z-Buffer quality gives higher frame ratio, but you'll see some objects that are not supposed to be visible.  Higher Z-Buffer quality gives better graphics and you'll less likely see objects that are not supposed to be visible, but by sacrificing frame ratio.

Transparent Object (OpenGL only)
Some objects (typically afterburner) become semi-transparent if it is checked.

Transparent Smoke (OpenGL only)
Smokes become semi-transparent if it is checked.

Transparent Vapor (OpenGL only)
Vapor become semi-transparent if it is checked.

Reduce Peep Hole Made by Transparent Polygons (OpenGL only)
Transparent polygons sometimes makes peep holes in which you'll see something that is supposed to be hidden by another object.  Perfectly eliminating such peep holes is computationally intensive, and will make the program very slow.  However, I can reduce such peep holes by slight increase of computation.  If you turn this check box on, the program will try to reduce such peep holes.  An example of the effect of this check box is shown below.

	<- "Reduce Peep Hole Made by Transparent Polygons" off.  The horizon that is supposed to be hidden by the hangar is visible through a peep hole created by the propeller polygon of A6M5.
	<-"Reduce Peep Hole Made by Transparent Polygons" on.  The peep hole is gone.

Use Display List for Drawing Cloud
If this box is checked, the program uses what is called "display lists" for drawing clouds.  If the graphics card has sufficient memory buffer for storing display lists, the drawing performance should increase.

Without display lists, the program transfers all polygons every time a scene is drawn.  If the object is static and does not move, the program ends up with sending exactly the same information each time, and it creates considerable transaction of data between CPU and the graphics card.  Instead of sending the same data many times, the program can transfer a chunk of data to the graphics card only once and later tell the graphics card to draw the chunk of data already stored in the graphics card's memory.  By doing this, the program only needs to tell the graphics card the identification number of the chunk of data to draw the same thing.  For example, if a missile model consists of 1000 polygons, the program needs to send 1000 polygons to the graphics card for each frame if it does not use display lists.  If that many polygons are stored in the graphics card's memory, the program only needs to send one integer number to the graphics card to draw the object.  It'll save time for drawing graphics significantly.

Use Display List for Drawing Weapons
If this box is checked, the program uses display lists for drawing weapons.

Use Display List for Drawing Explosions
If this box is checked, the program uses display lists for drawing explosions..

Use Ground Texture
If this box is checked, the program uses texture to draw maps.

Use Runway Light Texture
If this box is checked, the program uses texture to draw runway lights.

Fen�tre des options

In Option Dialog, you can change the resolution (full-screen or normal window) and sound on/off.  Option "Remember Window Position and Size" is effective only when the screen mode is "Normal Window" mode.  If this option is on, the program remembers position and size of the window when the window is closed, and restores the same position and size when it starts for the next time.

If you change a screen mode in OpenGL version, you may encounter some problems due to incompatibilities of video card drivers.  If you cannot start up OpenGL version after changing the resolution, try one of following three options.

(1) Start YSFLIGHT with pressing SHIFT key down.  The program will always start in normal window mode if you do so.  Then, go to Option Dialog and set the screen mode back to normal window.

(2) If option (1) doesn't work, choose "YSFLIGHT - RESET SETTING" from "Start Menu" -> "Programs" -> "YS FLIGHT SIMULATION SYSTEM 2000."  This will initialize all the settings.

(3) If option (2) doesn't work, start the Non-OpenGL version and go to Option Dialog to set the screen mode back to normal window.

(4) If none of the above two options works, re-install YSFLIGHT.

If all three options fails, you should suspect problems of your video card driver or something other than YSFLIGHT.

Changer la configuration du Clavier/Souris/Joystick

You can change functionalities assigned to joystick, mouse, and keyboard.  To change assignments, please choose:

    "Option" -> "Config Key/Mouse/Joystick Assignment"

The dialog shown on the right will appear.

In the dialog, choose a functionality in list boxes, and click "Change" button to change the assignment.  For example, if you want to assign Axis 3 of Joystick 2 to throttle, click "Throttle" in "Joystick/Mouse Axes" box, and click "Change" button located right of "Joystick/Mouse Axes."  Then, choose Joystick 2 Axis 3, (check "Reverse" if necessary) and click "OK."

You can also save your assignment to a file by clicking "Save" button, and you can load your assignment when you re-install YSFLIGHT, or upgrade to a newer version.  However, if you load the assignment configured by an older version, no key or button is assigned to a new features added in a newer version.  If you upgrade YSFLIGHT to a newer version, and if you load your key assignment, please assign new features to appropriate keys or buttons manually.

If you need to reset the assignment back to the default assignment, click "Default" button.

Preparer vous � voler

There are the following four types of flights in this simulator.

• Free flight

• Air combat

• Instant dogfight

• Intercept mission

Vol libre

In free flight, there are no other airplanes than your airplane. You can just practice flying. Follow the steps below. 

1. Choose Simulation->Create New Flight

2. Choose your airplane.
   
   You can choose your airplane by UP/DOWN arrow keys.  If you press SHIFT+UP or SHIFT+DOWN, the cursor moves quicker.  You can also choose ordinances by Q,A,W,S,E,D,R,F,T and G keys.  The selected ordinances, however, may not always be reflected in the simulation.  For example, if you are about to start Endurance Mode, and if you turned off "AAM", AAMs will not be loaded to your airplane no matter how many AAMs you selected in this screen.
   The airplane first show up on this screen is the one selected in Config Dialog
   
   You can also search an airplane by key words.  To search airplanes, press Ctrl+F and then type key words.  For example, if you type "F" and "EAGLE" separated by a space, only airplanes whose name includes the both key words will be shown.
   
   (* If you are using smaller resolution, less than 512x384, you will not see this screen.  Instead, you'll see a  dialog box, by which you can choose your airplane.)

3. Choose airfield, player's start position, wingmen and wingmen's start positions.  (If you click "Change Airplane", you can re-choose your airplane.)
   
   

4. If you want to save this setting, choose File->Save. (You can restore this setting by File->Load).

5. Choose Simulation->Fly

6. Center the joystick, and press a button or space key to go!

Combat a�rien

You can fly an air combat mission. Follow the steps below. 

1. Choose Simulation->Create Air Combat. 

2. Choose Airfield. 
   

3. Set airplanes, initial position and level with Air Combat dialog. 
   
   Each items of the dialog means: 

   Type of airplane	As it is
   Position	Please refer to Appendix-A
   Level	Choose the level of the airplane from Novice, Veteran, Ace, Deadly or Lethal
   Don't use AAM	No airplane can use Air to Air Missile if you check this box. This check box will take you to the classic machine gun dogfight

4. If you want to save your setting, choose File->Save. (You can restore this setting by File->Load).

5. Choose Simulation->Fly

6. Center the joystick, and press a button or space key to go!

Combat imm�diat

Since 2000/07/03 release version, you can fly an instant dogfight. In this mode, if you kill opponent airplanes, new opponent airplane will be generated and will attack on you.

The dogfight is limited to 15 minutes. No opponent airplane will be generated after this time period. If you survive 15 minutes of the air combat and if you kill the remaining enemies after this time period, you'll have chance to land to the base alive.

To play Instant Dogfight, choose "Simulation"->"Fly Endurance Mode".

Mission d'interception

In an intercept mission, you take off with your wingman (wingmen), and intercept attackers.  To play an intercept mission, choose "Simulation" -> "Intercept Mission." 

Mission d'aide au sol rapproch�e

In a close air support mission, you need to destroy enemy tanks attacking your base.  To play a close air support mission, choose "Simulation" -> "Close Air Support Mission."

Configurer le Jour/Nuit, le Brouillard, et le Vent

To configure Day/Night, Fog, and Wind, select "Simulation" -> "Set Environment" after creating flight or dogfight, before selecting "Simulation" -> "Fly."  Or, you can choose default environment in Config Dialog.  (Configuration by "Simulation" -> "Set Environment" overrides the configuration of Config Dialog.) 

R�essayer la mission pr�c�dente

You can re-try the previous mission by choosing "Simulation" -> "Retry Previous Mission"

Voler (Touches du clavier, Souris et Joystick)

Dans le cas où vous voudriez imprimer la page d'assignement des touches, j'ai préparé une page indépandente. 

[Cliquer ici pour voir cette page]

You CAN use a keyboard to control elevator and aileron, if you really want.  Please see Changing Key/Mouse/Joystick Assignent to change settings.

Affichage Tête Haute (Head Up Display) / Panneau des instruments de bords
I didn't believe my eyes when I realized that I forgot to write the explanation of HUD two years after I released this flight simulator.  So, now I add the explanation below (2001/12/02)

(1) Munitions.  >><< indique l'arme est selectionnée, appuyez sur la touche 1 du joystick pour la mise à feu.
(2) indicateur de tangage
(3) taux de monteé/descente (x100 pieds/minutes)
(4) Indicateur d'angle de direction (lacet)
(5) Vitesse (kt)
(6) Attitude de l'avion
(7) Altitude (ft)
(8) Nombre de Mach
(9) Nombre de jets (G)
(10) Gaz
(11) Vecteur vitesse. activé par la touche V
(12) Train d'atterrissage, freins, volets, et aérofreins
(13) Gouvernail de profondeur, ailerons et palonniers
(14) Essence restante

(1) Indicateur de vitesse
(2) Indicateur d'attitude
(3) Altimètre
(4) ILS
(5) Volets
(6) Jauge d'essence
(7) Freins
(8) Coordinateurs pour les tournants
(9) Indicateur de direction
(10) Indicateur de vitesse ascentionnelle
(11) VOR
(12) Gaz

Système d'armes

After 2000/07/03 version, the way to control weapon system changed from the previous version. You have to choose a weapon by 2 key or trigger 2 of the joystick, and fire it by 1 key, SPACE key or trigger 1 of the joystick.

There are four types of weapons (and smoke) as follows.

Available weapons depend on the airplane.

Aide � la navigation (VOR et ADF), instrument d'aide � latt�rissage ILS (Instrument Landing System), et RADAR

In YSFLIGHT, you can use two types of navigation equipments, VOR and ADF.

A VOR indicates a deviation of a certain course passing through a selected VOR station from your airplane.  It also tells if the VOR station is in front of or behind your airplane.  Many of the airplanes in YSFLIGHT has two VOR receivers.  To distinguish them, one is called NAV1, and the other NAV2.

To use VOR, first you select a station, and then specify the course by selecting a course heading called OBS.  Press L-key to select a VOR receiver.  You will see a menu for selecting a VOR station.  Pressing L-key one more time will switch to NAV2, and another stroke will switch to a NDB-selection menu.  (NDB is a station for ADF.)  After selecting a station, press 7-key or 8-key to change OBS.

Meaning of VOR indication is as follows.  Assume that you turned your airplane to the OBS heading.  The needle of the VOR tells lateral deviation of the course from your airplane.  For example, the needle of NAV1 shown below is right of the center.  So, if your airplane heading is 360, the VOR station is on your right.  Also, beside the OBS is TO/FROM indication.  If it says "TO", the station is ahead of you, or "FR" behind you.

NAV1	NAV2	ADF

When I learned it for the first time, my first impression was why is this thing so complicated?  But, if you just want to fly to the station, there is an easy way of using it.  First select a station, then turn OBS (by 7- or 8-key) until the needle is centered and TO/FROM indication becomes TO.  Then, the OBS tells you the heading you must fly to reach the station.

You can also tune NAV1 to an ILS, or Instrument Landing System.  If you tune NAV1 to an ILS, it will tell you lateral and vertical deviation of the ideal approach path from your airplane.  The vertical deviation is shown by the horizontal needle called glide slope.  The vertical needle will show you the lateral deviation of the ideal approach course from your airplane.  So, once you are on the approach course, you will be able to fly an ideal approach path by chasing the needle.  You can also tune NAV2 to an ILS, but it does not have glide slope indication.  When you tune NAV1 or NAV2 to an ILS, OBS does not have an effect on the indication.

If an airplane is equipped with HUD, ILS needle will also be shown on the HUD as shown below.

�@

ADF is a lot more simple.  ADF needle will tell a relative direction to the selected NDB station from your airplane.  If you keep the needle centered, you will eventually come to above the NDB station.

Also RADAR equipment is available for air combat and anti-ground attack. You can turn on the RADAR or change the RADAR range by 3 key or trigger 3 of the joystick. The RADAR range cycles through OFF -> 5 miles -> 10 miles -> 50 miles -> (repeat). 

The RADAR has three modes as Anti-Air, Anti-Ground and Bombing. The mode changes automatically when you change the wapon of choice.

(Anti-Air mode)	(Anti-Ground mode)	(Bombing mode)

In Anti-Air mode, X marks show the ground objects and square marks show airplanes. White marks are friendly objects and Green marks are hostile objects. A small tip of line attached to the square show the flying directions of the airplane.

Anti-Ground mode is almost same as the Anti-Air mode, but it shows more objects in front of the airplane than ones behind the airplane.

In Bombing mode, the circle on the radar shows the estimated impact point of the bomb. If you are flying B-2 or Tu-144, you can carpet bomb referring to the circle and the cross mark.

Jeu en r�seau

CAUTION:  If you are using Windows XP Service Pack 2, you need to unblock YSFLIGHT from Windows Firewall.  Please follow this link for more information.

Since 20001125 release version, YSFLIGHT2000 features network play. More than one player can fly a same airspace and fight against each other. Or you can cooperatively attack heavily defended ground target. If your PCs are connected to a high speed (10Mbps or faster) connection, you may be able to fly a formation of 6 airplanes and perform an aerobatic flight. I haven't tested how many players are practically possible, but theoretically, the program must accept 17 players at maximum.

Since 20021205 release version, you can play Endurance Mode and Intercept Mission over the network.  You can cooperatively attack against computer airplanes or defend your base with your friend.  To start the endurance mode, press E key in the server menu.  To start the Intercept mission, press B key in the server menu.  If you want to terminate the Endurande mode or the Intercept mission, press T key.  (Pressing T key does not delete already flying computer airplanes.  You have to take care of them anyway.)

In the network play, you may get damage even when you don't see any bullets or missiles striking your airplane. In such a case, your opponent's airplane is seeing his bullet or missile striking your airplane. It is because there is always some delay in transmitting position information. This problem can be moderated if I write a smart code that expect future path of the airplane, however, instead of making my code smart, I made a rule of the network play as follows. 

Say user A is flying an airplane P in computer X, and user B is flying an airplane Q in computer Y. If user A fired a weapon and the weapon strikes airplane Q in either one of (or both) computer X or computer Y, airplane Q gets damage. 

In summary, if you really see your airplane being hit, or your opponent sees his weapon striking your airplane, you get damage.

Consequently, even you think that your opponent's bullets are strayed from your airplane, say 20m behind you, you shouldn't stop your maneuver to avoid opponent's attack. If you are flying at 200m/s, and if the network delay is 0.1 second, you'll see your opponent's bullets strayed 20m behind you when your opponent is seeing his bullets striking directly your airplane. And, this is a game to play happily. Don't begin fist fight screaming "Hey, your bullet didn't hit me! You did something unfair!". Your opponent is not unfair. It is a nature of network play.

If you want to fly with a friend who is apart from you, you may want to chat with your friend while flying, though, YSFLIGHT2000 itself does not transmit texts for chatting.  In such a case, you can open an external chatting program beside YSFLIGHT2000's window.  However, while you are chatting with your friend, you cannot control your airplane.  In order not to crash your airplane while chatting, you can use auto-pilot.  If you press BS (backspace) key, your airplane will fly a holding pattern until you press BS key once more.  

But, I don't recommend to use voice chat and YSFLIGHT2000 at the same time.  Experiments showed that Windows may freeze if you try to use voice chatting program and YSFLIGHT2000 at the same time.  You can avoid this problem by turning off YSFLIGHT2000's sound effects.  However, even if you successfully start YSFLIGHT2000, practically you cannot fly with your friend over network because the network-load of voice transmission eats bandwidth up and YSFLIGHT2000 cannot transmit airplane's position, state etc.

To play over the network, one player needs one computer. And, one computer must work as a server. The other computers must connect to the server as clients. The figure on the right shows an schematic image of the network connection. A player in front of the computer can join the flight either when a computer is working as a server or when a computer is connected to the server. 

To begin a server, choose Network menu -> Server and type your name. To access to a server as a client, choose Network menu -> Client, and type your name and the network hostname of the server.

The server address is shown under the server menu as follows.  So, you can tell it to your friend by phone or chat program or in whatever way you have.

However, when your PC is sharing an IP address with another PC(s) (eg. when a PC is connected via dial-up router), or when your PC has more than one network connection (eg. dial-up connection + LAN card), this address may not be valid.  In such a case, please ask your network administrator for the correct address.  (Please do not ask me about the host address.  It depends on your PC's environment, and I am not your tech support.  I'm suffering from overwhelming E-Mail of this kind of question.  I'll ignore them all.)

CAUTION: When a YSFLIGHT version of the client does not match a YSFLIGHT version of the server, the client may get the following message and be rejected from the server.

If you see this message, please upgrade both the server and the client to the latest version of YSFLIGHT.

(*1 YSFLIGHT of version 20021205 or newer has a feature that smoothes the motion of airplanes behind the network.  However, if a server or a client is running YSFLIGHT of older version than 20021205, this feature does not work.)

Now you are ready to join the flight. If you press 'J' key, you can go for a flight instantly. Or, before going, you can change your airplane, start position and your IFF code (IFF : Identify Friend or Foe system). Key strokes are explained in the following table. 

To choose an airplane or a start position, use arrow keys, UP arrow and DOWN arrow. If you press UP or DOWN key with SHIFT key, choice moves faster. Press SPACE key to decide. (You can press ESC key or ENTER key to decide. ESC will not cancel your choice). 

When flying with more than two players, be careful not to begin a flight at the same position, or you will end up with mid air collision as soon as you start a flight.

I am not assuming to use this network play feature between the PCs that are located in a remote places. I am assuming all PCs are in the same room and players have voice communications. So, the program itself doesn't have chatting capability. If you want to chat with your opponent while flying, please run another chatting program simultaneously. 

You can configure network-play options by Network menu->Network Option. If you choose Network menu->Network Option, the following dialog pops up.The following table explains each item. 

General Tab
Network Port	Specify network port number for network play.  The default port number is 7915.  A client cannot connect to a server if network port numbers doesn't match.
USERNAME	Specify a default username.
Save Chat Log	If you check this box, chat log will be saved in "My Documents\YSFLIGHT.COM\YSFLIGHT\netchatlog"
Server1 Tab
Field	Specify a field that you use in a network play. A server has a right to choose a field. So, this "Field" is valid only when your PC is working as a server.
StartPosition	Specify a default start position when your PC works as a server. You can change the start position by [S] key after you start a server.
IFF	Specify a default IFF (Identify Friend or Foe) code when your PC works as a server.
Record Flight	If you check this box, the program records flight while running a server.
Config Intercept Mission	Change settings of the Intercept mission.
Disable Chat	If this box is on, the users cannot send/receive text messages.
Log On Time Out	If a client connects to the server, but does not complete the log-on request within the specified time, the server will disconnect the client.
Multi Connection from Same IP	Limit connection from a single IP address.
Accept Connection Only from the Same Version	If this check box is on, the server accepts connections only from the same version.  If this box is off, the server may accept connections from a little older versions.  (However, new features, like new weapons, are not available in the older versions. ! Disabled in 20070415/20080220 versions !
Reset Server Every	You can choose the interval of resetting the server.  When the server is reset, all the users are logged out, and need to connect again to continue playing.  The server sends warning messages 30, 15, 10, and 5 minutes before reset.
Stop Server After Resetting	If N times is chosen for this option, and Reset Server Every X Hours is set, the server will terminate automatically after resetting N times.  This option may be useful if you'd like to run a server only on weekends.  You can configure the network options so that it resets every 6 hours, and stops the server after resetting nine times.  Then, set a task scheduler so that it launches fsmaino.exe with the options "-server Server -autoexit" at 6pm every Friday.  Then, the server starts at 6pm on Friday, reset at 0am, 6am, 12 noon, 6pm on Saturday and Sunday, and stops at 0am on Monday.
Server2 Tab
Ground Fire	If this check box is on, AAAs and SAMs will fire at airplanes during the network play.
Use AAM/AGM	If you check this box, the program allow to use AAM/AGM in the network mode. The server has right to decide to allow or not to allow AAM/AGM.
Use Gun/Bomb/Rocket	If you check this box, the program allow to use Gun/Bomb/Rocket in the network mode. The server has right to decide to allow or not to allow Gun/Bomb/Rocket.
Disable Radar Gun Sight	If this check box is on, radar gun sight (or lead gun sight) is disabled in all the client regardless the configuration of the client.
Disable Third Airplane View	If this check box is on, no player is allowed to see other airplane's activities by using view control (by default F3 key.)
Notify Take Off / Leave	If this check box is on, the server notifies clients when a user takes off or leaves the airplane.
Show User Name	This option controls if the username is shown always, never, only within 1000m, only within 2000m, or only within 4000m.
Mid Air Collision	This option controls if "Mid Air Collision" option in the network mode is same as server, enabled, disabled, or do not control (up to the client.)
Black Out	This option controls if "Black Out" option in the network mode is same as server, enabled, disabled, or do not control (up to the client.)
Can Land Anywhere	This option controls if "Can Land Anywhere" option in the network mode is same as server, enabled, disabled, or do not control (up to the client.)
Radar Alt Limit	If "Same as Server" is chosen, the lowest altitude that an airplane is visible on the radar on the clients will be set to the same altitude as the server.
Blocked IP Addresses	The server will reject connection from the IP Addresses listed here.
Add	Add an IP address to the list
Delete	Delete selected IP address from the list.
Client Tab
Host Address	Specify a default hostname to connect when your PC works as a client.
Start Position	Specify a default start position when your PC works as a client.
IFF	Specify a default IFF code when your PC works as a client.
Record Flight	If you check this box, the program records flight while running a client.
Outside the Tab area
Set Default	Set all configurations to the default values.

Si vous �tes interess� en programmation d'applications graphiques en 3D

This flight simulator is built using Blue Impulse 3D Graphics SDK and YS Geometric Calculation Library.

Blue Impulse 3D Graphics SDK is designed for interactive 3D visualization programs. I developed it for my master's thesis research project. It runs in a acceptable speed even in a relatively slow platforms. One advantage of the toolkit is cross-platform capability. Actually, if I re-compile source code of this flight simulator in SGI or X-Window environment, it runs (Except dialog boxes and joystick features. I just used #ifdef WIN32,#endif for those WIN32 depending part). Another advantage is scalability. If you build a program in a relatively slower platform, you'll want to use flat-shaded version. But, you can get smooth 
shaded version just by re-compile with the library file of OpenGL implementation. 

YS Geometric Calculation Library provides wide variety of 3D calculation features, including basic vector classes, matrix classes, shell classes, intersection/collision detection..... This library also has template classes like array, linked list etc. 

Both toolkits are free and open source. Please visit the Web site. 

• Blue Impulse 3D Graphics SDK

• YS Geometric Calculation Library

But, it doesn't mean I'm going to open source codes of YSFLIGHT2000. I have no plan to open the source code of this flight simulator. Only source codes of toolkits are open.

Blue Impulse 3D Graphics SDK is a foundation toolkit of YSFLIGHT2000.  But, it doesn't mean that you can easily modify existing airplane or create new airplane in YSFLIGHT2000.  Blue Impulse 3D Graphics SDK is a general purpose 3D Graphics toolkit.  But it is not dedicated to YSFLIGHT2000.

Pour me contacter

Comments are welcome. Send E-Mail to:

In both address, I can read E-Mail written in either Japanese or English.

Web-Page:

http://www.ysflight.com

Related Web-Page:

AIRPLANE SOFTWARE   -   Download cool 3D airplane screensavers etc.

Airplane Photo Gallery    -    Tons of airplane photos.

Appendice A - Notation des positions

Appendice B - Exemples de missions

There are several example missions. You can choose them from File->Load, then choose Simulation->Fly.

I write brief explanations of each mission. 

• fly_f22.yfs
  This file is used in Instant Flight section. 

• A6M5vsB29.yfs
  A formation of B-29 is approaching Misawa air base.  Take off in A6M5 Zero Fighter and intercept the bomber formation.  Give appropriate commands to your wingmen to make the mission successful.

• P51vsG4M.yfs
  A formation of G4M Betty is approaching your base.  Take off in P-51 Mustang and intercept the bomber formation.  Give appropriate commands to your wingmen to make the mission successful.

• fleetbattle1.yfs
  Take off the aircraft carrier with your wingman, fly east, and destroy enemy fleet before they destroy a friendly aircraft carrier.  After the mission, return to the ground base, or the carrier that you took off.  You need to give appropriate commands to your wingman to win the battle.

• fleetbattle2.yfs
  Take off the aircraft carrier with your wingman, fly east, and destroy enemy fleet.  Fighters are guarding the airspace around the enemy fleet.  Use mid range missile to destroy some of them, and destroy the rest of them in a dogfight.  After the mission, return to the carrier that you took off.  You need to give appropriate commands to your wingman to win the battle.

• concorde_in_hawaii.yfs
  Take off Kona International Airport in Hawaii island, turn left heading 310, climb maintain 45,000ft, and you are cleared for Mach 2.0!  When Oahu island is close, descend and decelerate to prepare to land.  Fly south of Oahu island with heading 260, altitude 2,500ft.  Make 180 degree right turn, and you are cleared for ILS approach runway 8L of Honolulu International Airport.  Final approach speed is 160kt.  Use PageUp/PageDown key to move variable geometry nose (or droop nose) to gain downward visibility!

• badiamond.yfs

• bidiamond.yfs

• tbdiamond.yfs
  Fly a formation leader of world famous "United States Navy Blue Angels", "United States Airforce Thunderbirds" or "Japan Air Self Defence Force Blue Impulse". At the beginning, you'll be on runway. You'll see another three airplanes behind (use M key to look back). 

To take off, turn on afterburner and push the throttle to the max power (press TAB key once and press Q key until the power becomes max, or just push your throttle lever forward if you have an external throttle lever). 

After air-bourn, keep the nose 10 to 15 degree pitch. Press B key or use POV to look back periodically. You'll see the #4 airplane sliding into its position. After #4 took in position, turn off the afterburner and reduce the power to the half of military (press TAB once again and press A key until the power becomes half, or just pull your throttle lever back to that power). 

Again, use M key or POV control, wait until other airplanes catch up you. You can make smooth turn during this procedure. 

At this point, you can fly what ever you want. But, remember that you are the formation leader. You must not perform a rapid maneuver, especially lateral maneuvers (rolling). You have to fly really nice and smooth. You also should not use max power or minimum power with airbrake. If you fly so, they cannot keep up with you because other airplanes have the same flight dynamic characteristic (no more acceleration or deceleration). You also have to 
keep between 200kt and 500kt until landing. 

If you pull your trigger 1 or 2, other airplanes will draw a smoke with you. You can try, diamond roll, diamond loop, and whatever diamond something maneuver with trailing smoke. You should keep plus G (more than 2.0G is good) while you are performing a formation aerobatic maneuver. 

Finally, you should land your airplane to the runway. Your wingmen will just follow you. So, you have to land exactly on the centerline of the runway. 

Try! 

Appendice C - Missions d'attaque de cibles terrestres

After 20000226 version, anti air artillery and surface to air missiles are added. So, you may want to attack heavily defended ground targets. Each map has heavily guarded ground targets. Why are they within just 20 to 30 km of the airbase? Please don't ask me that question(^_^;) But, you can attack them. Some maps also has the start position "CLOSE BY THE GROUND TARGETS". If you choose it, you'll start flying several miles away from the ground targets. Otherwise, please takeoff and search the targets by yourself. They are heavily guarded by anti air artilaries and surface to air missiles. Attack them by your AGMs (anti ground missiles) and machine guns! 

Please see also Close Air Support Mission.

Appendice D - Param�tres de la ligne de commande

The following command parameters (options) are available for both Windows and Linux versions.

-h 
-help

Show help.

-keymenu

Use key menu.

-replayrecord Filename

Replay flight record.

-freeflight Airplane Field Position

Fly Free Flight.

-flyyfs Filename

Load .YFS and fly.

-endurance Airplane Field NWingmen WingmenLvl UseMissile

Endurance Mode (15 minutes dogfight)
NWingmen : 0 to 2
WingmenLvl : 1 to 5
UseMissile : 0(not use) or 1(use)

-intercept Airplane Field Stealth Escort HeavyBomber Bomb NEnemy NWingmen

Intercept Mission (15 minutes base defense)
Stealth : 0(not allow stealth) or 1(allow stealth)
Escort : 0(not allow fighter escort) or 1(allow fighter escort)
Bomb : 0(not allow bomb) or 1(allow bomb)
NEnemy : 1 to 5
NWingmen : 0 to 2

-server Username

Start server mode.

-client Username ServerHostName

Start client mode.

-netport portNumber

Specify port number (valid only when -server or -client is given.)

-autoexit

Exit after flight. (Ignores -keymenu.)

-saveflight Filename

Save after flight.

-listairplane

Show airplane list.

-listfield

Show field list.

-liststartpos Fieldname

Show start position list.

-setdefaultconfig

Set default configuration.

-setdefaultnetconfig

Set default network configuration.

-setdefaultkeyassign

Set default keyboard assignment.

-setdefaultoption

Set default option.

Appendice E - Fichiers de Configuration

Linux version does not have GUI dialogs for changing configurations.  So, you need to manually modify configuration files.  The explanations of the configuration files are found in document/configfiles.txt

If you screw up the configuration files, start the program with the following four options:

-setdefaultconfig

-setdefaultnetconfig

-setdefaultkeyassign

-setdefaultoption