MJC8 Q400 Sample Flight(English Edition- rewrite 1.5)

Delivery flight from Toronto Downsview (CYZD) to Montreal Pierre-Elliott-Trudeau Intl (CYUL)

Flight route. We will be flying the following route, calculated by the freeware RouteFinder (rfinder.asalink.net):

CYZD - dto - OO - v98 - REEDO - j586 - MSS - star - CYUL

We will take off from runway 15, there is no SID at CYZD, but we will use STAR at arrival. We will use HABBS3
STAR, execute an ILS approach and land on runway 06L at CYUL.

First, load the MJC8 Q400, logically Porter livery, at CYZD. Open the main entry (Shift+E) to let the passengers in. Normally, the GPU should be already connected (if it is not, you can request GPU from FMS DATA/SERVICES menu, or start the APU).
*1. this mean, if you don't use GPU(GroundPowerUnit), you have to use APU.when you will start engines, GPU will disconnect automatically.

You can also load a saved situation "CYZD-CYUL Sample Flight".
*1. you have to copy 3 files from "SimObjects\Airplanes\mjc8q400\doc\sample_flight\Situation\" into "Documents\Flight Simulator X Files" or "Documents\Prepar3D v2 Files"

Loading the aircraft

We will now use the included "MJC84 Control Panel" application to configure the aircraft. Please note that while doing so, the FSX should run on the background with the MJC 8Q400 aircraft on the ground. The addition of the required data for fuel, passengers and bags would be derived from the dispatch release and the station load manifest which the ramp or gate agent will give to your flight attendant. Since this is a delivery flight, we are going to have some Majestic personnel on-board to meet and greet our delivery customers in Montreal. So we will only have a few hundred pounds in the cargo bins with 30 passengers. The average fuel burn for a flight of about an hour is about 1250lbs per engine (2500lbs), and we will be filling the tanks, as we plan to have a celebratory flight for the delivery customers in Montreal.
*1. lbs=Pound. 1.0lbs = 0.45kg. to make a rough estimate, use 0.5kg. that's easy to caluculate

Baggage Loading
In the forward baggage compartment we have 600lbs of luggage for the passengers, and in the rear compartment there is 200lbs of company T-shirts, souvenirs, etc. For future use if you choose to use a baggage count for FWD and AFT compartments, the DAA columns can be utilized, also be aware that the FWD compartment is capable of a MAX load of 908 lbs., and the AFT compartment a MAX load of 3619 lbs.

Passenger Loading
We have 30 passengers on-board with 16 seated in the OB and 14 seated in the OD sections. The Q400 passenger loading is broken up into 4 sections for proper determination of CoG calculations. You will also notice on the EFIS page of the Load Manager Configuration tool that one is able to select the use of Kg or Lbs. You will notice that each of the four boxes has a MAX passenger limit that can be loaded into each section.

*1.  also ATMOSPHERIC PRESURE, you can choose 2 ways. "hectopascal(hPa)" or "Inch(In)"
       in this flight, we use lbs and In. cause here is Canada. when you flight in other country. think about it.

Dry Operating Mass (DOM)
The DOM (Dry operating Mass) better known as the BOW (Basic Operating Weight) is 40, 639lbs with a DOI (Dry Operating Index, or BOI (Basic Operating Index) if 94.6. This will be adjustable if users would like to change it to suit a particular airlines SOP.

Fuel Loading
We have already discussed that we will be filling the tanks for this leg (although the fuel is probably cheaper in Montreal). The Max allowable uplift for fuel on the Q400 is 11,724 lbs., but this leg CYZD to CYUL is only going to require about 2600 lbs. of fuel for all phases of flight, but we'll add an additional 200 lbs. buffer and round it off to 2800 lbs., the weather at our origin, en-route and at our destination is not a factor, so there will be no need for an alternate or additional holding fuel apart for the standard 15 minutes. Also bear in mind that the tanks have been filled so we have options if the need arises. Press the CALCULATE button to calculate the weight and balance after inputting TO/FUEL & TRIP FUEL.

The next block of data defines what the aircraft performance and structural weights are
- These can be changes based on specific airline aircraft weights if one chooses to do so

Once this is complete we now have to look at the CALCULATE button which should be selectable at this point, somewhat of a bright blue color. Upon calculating the value for bags, passengers and fuel, the load manager with now give us data pertaining to the aircraft's final weight and balance. If these values have been properly computer you should have an aircraft that is within CG limits.
*1. when you change parameters, just click CALCULATE.

Useful Load
The Useful Load Section gives a break-down of the passenger and baggage compartments. We'll see that the MAX pax load is 5608 lbs. and the MAX baggage load is 800 lbs., which gives us a total payload of 6408 lbs., allowing us to be able to load an additional 6029 lbs. (Under-load) if the need arises.

Img_011

Final Weight and Balance
The Final Weight and Balance shows what our ZFM/ZFW, TOM/TOW and LM/LW are with the associated index and MAC%. Over to the right you will see the accompanying load sheet with a graphical representation showing where the CoG is (AFT, CENTER or FWD). From the example shown we can see that our CoG is more or less centered. We can therefore conclude the aircraft configuration by pressing the "SEND DATA TO FLIGHTSIM" button, closing the MJC84 Control Panel application and switch to the FSX to begin with the the cockpit preparation.

We have determined that our takeoff weight is going to be 58771 lbs., since CYZD is not a large airport it is not likely that we will be burning more than 100 lbs. of fuel for taxi, so I am going to use the takeoff weight numbers for 59000 lbs. These numbers can be accessed from the takeoff/landing data provided in the manual, or by using the AuraSim Instruments module (which is quite a handy tool for quick reference data). For this tutorial we'll use the takeoff charts provided in the manual.

You will notice that unlike some charts which incrementally increase their weights 500/1000 lbs. at a time, this one reflects a range for which the takeoff speeds are good. So for 59000 lbs. we look at the 57000 lbs. line and are able to determine that those speeds are good. The field elevation for CYZD is below 2000 feet so we choose 0 and the temperature at the field is 13 degrees Celsius. This gives us a V1/VR of 124 kts., V2 of 127 kts., VFRI of 137 kts. And VCLIMB of 148 kts.
*1. one chart uses 500LB step. and other chart uses 1000LB step.
*2. this mean, 57,000LB is most closer to 59,000LB on chart.
*3. FLAPS 5's Vr/V2. below 20 degrees Celsius is left side on chart. above 20 degree Celsius is right side. for 13. use left side on this situation.
*4. V2=Takeoff safety speed. VFRI=you can retract fraps over this speed. VCLIMB=Speed for climb.

Takeoff chart

This data now needs to entered into the PFD which is fairly simple and straight forward. Both the captain's and first officer's speed bug references which is located on the PFDs need to be updated. Under the glareshield in the left uppermost corner is the SEL button which when pressed will highlight the V1 speed bug indicator, next to the SEL button is a SEL knob used for selecting the desired speed reference.
*1. upper left rectangle.  Left Button: SEL button. Right knob:SEL Knob
*2. centre rectangle. Speed Bug Indicator.

As you can see this was fairly easy, if you have incorrectly entered a value you can simply press the SEL button until you get to the desired V setting and change the value.

*1 . you can use 2 other Speed Bugs on Indicator. in this Flight, they use for vClimb.
       this is just makers. other pilots use for vFRI and vClimb. this rewrite edition use this way to recgnize speed for next actions.
      also, you already know about these speeds from chart.

DH/MDA Setting
Next step is to set the Decision Height (DH) or MDA (Minimum Descent Altitude). This is achievable by simply right clicking on the DH/MDA knob (you will have to switch the knob to MDA if this is the setting of choice) which is located below the BARO SET knob. If not set aural altitude alerts won't be heard.

Altimeter Setting
The Altimeter setting knob is located just below the speed bug knob and right clicking will decrease, while left clicking will increase the value of the kohlman's window.
*1. click BARO SET knobs to increase kohlman.
*2. input kohlman. then, Altimeter gauge would be compensated by your input.
    f.e. if QNH and QNE equal 1013hpa. 29.91In

Enter the cockpit and do the pre-flight check

Switching on ARCDU will start the default announcement scenario (if the passenger door is open). You will hear some music too. Now we are ready to program the FMS.

FMS programming

  Switch on the FMS by pressing ON/OFF button(* you can find "ON|OFF DIM" above ENTER ). After a short test sequence, the FMS is ready for use. Press "Accept" to confirm the initial Position shown by the FMS.
Press FPL button to start entering the flight plan. Select the first line(* LSK1 ) and enter the departure airport name (CYZD). Press Enter twice to confirm the choice. You can click on the FMS screen to bring up the Popup window.
※1. if you click part of LCD on 3D cockpit FMC, 2D panel would pop up.
※2. LSK = Line Select Key = the number is starting from uptter left "LSK1".Lower right key is the number of end.,
  Select the second line to enter the second point in the flight plan (OO). When you confirm the entry by pressing Enter, the FMS shows a summary page.
※1. when Line 2 is selected already, you don't have to click LSK2.
If more than one point exists for the given name, several pages will be shown. You can choose the correct one by pressing PREV and NEXT buttons. Press Enter or LSK5 to confirm. By default, the first page shows the point closest to the last point in the flight plan
※1.  there are so many fix "OO" all over the world. but when you input Flight Plan, it should be closer one. and FMC shows you closer one first. so. just click Accept.
※2.  about latitude and longitud. remember , near London's longitud should be 0. and Japanese should be near 135. Northern Hemisphere's latitude N(North),and Southern's latitude. so  these are hint, when you select fix.
Next, we should take the airway v98 up to the point REEDO.(latest AIRAC data dosen't have that AIRWAY. if you updated database. when you want to use latest one. find route on the internet.) Select the second line(* LSK7), then press LIST.
*1. on last screen, line 3 should be selected. if your screen dosen't show that, click LSK10"RTN-Return" and select Line 3
*2. when you click List, you can input next Fix without Line select in succession.
Press LSK7 to show the list of airways from the current point. Here, we have 3 airways, the one we need is #3. Enter 3 on the numeric pad, then press Enter.
*1. when your FMC was updated by Navigraph or others, this number would be changed.in my case, Cycle1404, #2 was V98
Now select the final point. REEDO is #12. Enter 12, then press Enter
The FMS inserts the piece of the flight plan which takes the route v89 adding the necessary waypoints.
Insert the next airway j586 up to the point MSS. Select the next empty line(* next to REEDOO) in the flight plan and enter the destination airport (CYUL).

Press FPL, then MENU

Press LSK9 (ARRIVE) to show the list of runways
input "CYUL" for ARRIVE. and Press Enter.
then,  Press LSK5 for "ACCEPT"

Press LSK7 (RUNWAY) to show the list of runways.
The runway 06L is #1 in the list. type 1 and press Enter.
 Select STAR HABBS3 (#4). Select transition (we take #4 for RWY 06L)
*1. when your FMC was updated by Navigraph or others, this number would be changed.in my case, Cycle1404, #2 was HABBS3. 
Select Transition #4 for  "Runway 06L".
*1. it was not on original flow. 
Select the approach by pressing LSK9 and entering its number (only one proposed here). At the end, press LSK10 to insert the selected procedures into the flight plan
Now we have the entire flight plan in the FMS. There is a number of *NO LINK* lines some of them should not be deleted. To delete a line, select it, then press LSK6 (DEL) twice. There is always a *NO LINK* line between the STAR and the approach, it should typically be deleted when the approach clearance is obtained. For the purpose of our flight, we will however delete it right away.
*1. when your FMC was updated by Navigraph or others, these are different.
*2.  you have to check out all Flight Plan pages.  use PREV and NEXT keys for that.
The *NO LINK* line after the RWY06L entry should not be deleted - the FMS deletes it automatically if missed approach is selected. You might also  notice that the XULTA waypoint is listed twice, prior to, and after the *I06L*. This arrangement which is often referred as "sandwich" must be always present and verified. Sometimes, when using a combination of some particular STAR and Approach the sandwich will not appear, in this case the first approach waypoint must be entered manually in front of the approach.
Press the NAV button to show the navigation page. Make sure that FROM and TO points are correctly displayed. TO should display the next waypoint.
*1. that mean, you are in CYZD now, and next point is "OO".

Departure

Close the doors (Shift+E).
*1. when you close "Exit", you can see "Main Exit Closing" message on upper left screen.

 switch on nose wheel steering. Switch OFF
*1. during your airplane is pushing back, this steering switch must be off. 


Overhead: switch on red anti-collision (right click) and position lights, turn on passenger signs.



and request pushback. To do that, press DATA button on the FMS and select SERVICES.

The right side buttons (LSK6 - LSK9) are dedicated to pushback. Request pushback by pressing LSK6 (STRAIGHT). The pushback scenario is initiated. You will hear a dialog between the captain and ground crew. The communication with ground crew is signalled by a light on the captain side console (2). You will be requested to release parking brakes, then to start the engine #2 during the pushback. Press LSK7/LSK8 to turn left/right during the pushback. Press LSK9 (End) to stop. You can hide the yoke by clicking on its base (3)
*1. after "pushback", you must set parking brake. picture for next step, you can see that.

To start the engine #2, turn ignition knob (1), select the engine #2 (2) and press the start button (3).
*1. the Engine on the Left wing of Q400. that's Engine No.1. and Right wing.that's No.2

Generally, right mouse clicks will move switches/knobs to the right/upwards/clockwise. Left clicks will move them to the left/downwards/counter-clockwise. If a switch has only two positions, left and right clicks will have the same effect. To select the engine 2, right click the switch. It will remain fixed to the right untill the engine is started, then return to neutral position. Push the START button to activate the starter


and move the right Condition Lever(* for Engine No.2) to START&FEATHER.

*1. when Engine No.2 is starting up, NH, PROP and ITT would be running up. just wait for NH and Prop meters will be in green zone.
*2. the reason that Engine No.2 is first, cause Engine NO.2 have Oil pressure line for parking brake.
*3. NH=Hight pressure compressor RPM NL=Low pressure compressor RPM ITT=Indicated Turbine Temperature.



return to neutral position on Engine Select switch.

Then you can start the engine #1.
after starting. return to neutral position on engine select switch.


In heavy snow conditions, the engine intakes can get stucked with snow and the engines won't start. Open the bypass doors (ENGINE INTAKES, ice protection panel on the overhead) to let air get into engines by a little inlet located under the nacelles.

The engines are started and props rotating at approx 220 rpm.
*1. check PROP rpm

 Set CL to max. The engines will spool up to 660 rpm, which is the right rate for taxi. The GPU(* Ground Power Unit) will disconnect as soon as the engines reach 440 rpm.
*1 Condition Lever(* for Engine No.1 & No.2) to MAX from START&FEATHER.

Switch on taxi lights (2), switch off external power.


and switch on nose wheel steering. Switch ON
*1. in this Sample Flight, we keep that ON till the end. but on real flight, we have to switch off when we are on runway.


the PTU and Standby Hydraulic Pump -ON


Both "AUX" fuel pumps -ON


Select the autofeather - ON


and select the spoilers Flight/Taxi switch to Taxi.

Depending on the settings, the steering tiller can be controlled either by the mouse, or by ailerons axis, or by spoiler axis (which is the recommended setting). The steering is effective under 40kts. You can also use rudder axis to turn the nose wheel withing 8 deg. angle. Tiller steering alows to turn the nose wheel up to 70 deg. in each direction. If auto differential thrust is enabled in settings, the PL will move separately to use differential thrust and simplify turns.

Start taxiing. Release Parking Brakes and use the Power Levers to control taxi speed. Check that PROPELLER GROUND RANGE indicator shows 1 and 2, meaning that the power setting is inside the range for taxiing.


During taxi, switch on pitots heaters (1) and anti-skid system (3).
*1. all 3 pitots heaters - ON



Set all 3 altimeters to 29.97 inches.
*1. 2 PFDs (Primaly Flight Display. Captain and Flight Officerside.) and 1 alternate indicator right next to MFD1.

Set the autopilot: Select FMS1 as the PFD navigation source,


Press TO/GA button on a side of the Power Lever, this will make the Flight Director bars appear on the PFD, commanding the 9 degree pitch and the level flight.


Select the heading of 153 degrees, press HDG on the autopilot panel, select the altitude of 25000 feet, press ALT SEL, finally press YD to engage the Yaw Damper. The PFD top line should now read "GA, ALT SEL and HDG SEL".

*1. check Heading and Altitude on PFD - picture the below is before setting heading.  -
*2. you use Runway 15. and heading of this Runway is 153 degrees.


Switch on windows heaters on the overhead : WINDSHIELD sub-panel, left knob to WARM UP, right switch to PLT SIDE WDO/HT ON. If the windows are misted, open side window de-mist valves (little levers under the side windows)

Taxing

keep speed around 20KTS by PL(Power Levers). and go to the entering line before runway 15.
that's should be on back-right from your airplane. use Sterring by mouse.

Check flight controls during taxi.
*1. check Elevetor, Rudder, Elron when you are checking JoyStick and Rudder pedal.


The caution panel should be black now.

*1. that mean, "No Caution" "No Error".


Set the flaps to 10 deg.


Activate the Transponder and the TCAS by pressing and holding the ARCDU LSK8 button for more than 2 seconds.

Before entering Runway.

set parking brake. then switch on for "to Warn Test".

if there are no warning horn sound. that's good. but if you here that, chech the list below.

1) Elevator trim is indicating in white arc. not in white arc, just move it into white arc.
2) Parking Brake-Off. you don't need break to get speed for TakeOff,
3) Condition Levers are MAX. move it to Max.
4) Flaps must be 5コ-15コ for TakeOff.
5) SPOILERS must be TAXI. not Flight. *this mean, you have to Test before next step.


Before takeoff: Set the spoilers to "flight"


switch on landing lights, switch off taxi lights and set anti-collision lights to white.
*1.before entering to the Runway.


Set bleed flow to MIN on air condition panel. Turn OFF bleeds #1 and #2
and select the Windshield heat switch to NORM.


Switch the MFD2 to NAV mode,
*1. MFD2( First Officer side)


and press the right WX/TERR button to activate the weather radar overlay.
*1. it's First Officer side. Captain's side, don't need that mode right now.


Now, switch on the weather radar on the pedestal (it will warm up during a minute, showing blue background on the MFD2)

Entering Runway

parking break OFF.
enter the Runway 15. Make sure the steering tiller is centered, 153 degrees.

Takeoff and Climb

 Release the control lock. Set PL to RATING, the engines will spool up to 1020 rpm. Control the aircraft with rudder during the takeoff run, don't use steering tiller.

When passing Vr, start rotating till 9 degrees pitch initially (but no faster than 3 degrees per second).


retract the gear.
*1. after the V2 speed. check Positive climb rate on vertical speed indicator on PFD too.



Maintain the V2 speed until passing 1000ft, than switch ON the autopilot, select IAS on the autopilot panel, using the Pitch Wheel to set the 180 kts target speed, as indicated on the top of the PFD, press NAV to activate the LNAV guidance.



When passing 150kts retract flaps, reduce the Condition Levers to 900.


turn ON the bleeds and set the bleed flow to the MAX position.


You may also utilize the rudder trim knob (on the AFT part of the pedestal) to align the slip/skid indicator.

*1. if you want. but if you are newbie, you don't need that in this flight.

Climb: When passing FL100, turn off the landing lights and the seat belts sign.
Set altimeters to 1013/29.91.
*1. QNE=29.91 In = 1013hpa

Switch off aux fuel pumps,  and the autofeather off.


Switch off STBY HYD and PTU.


If you encounter icing conditions, the "ICE DETECTED" message will show up on engine display. Switch on anti-ice system (AIRFRAME MODE SELECT - SLOW), props anti-ice (PROPS - ON) and increase reference speeds by turning on the REF SPEEDS switch to ON(INCR).

Cruise

On reaching cruise altitude, set CL to 850 and reduce thrust to maintain 234kts (high speed cruise). At this point you can program the VNAV.

*1. when your airplane will be near Setting Altitude, the Gauge show you advice by color.
      yellow = close to setting altitude.
      blue     = you are on setting altitude.

Press VNAV button on the FMS, press LSK3 to select the waypoint you want to descend to (HABBS).
*1. on this screen, enter No.5.

 For now, bypass each field by pressing ENTER until reaching the TGT V/S. When pressing enter on this field, the FMS will enter a cruise mode.
*2. just check. it is "-1800" feet/min already.
In this mode the FMS calculates the top of descend (TOD) point. VNAV page shows the distance(* miles) to the TOD and estimated time to reach it.

TOD is displayed on the flight path (small circle).

If you check visually the plane in flight, you can notice that even with anti-ice on, some parts are not de-iced, namely prop spinners and the FO side window.

2 minutes before reaching the TOD, VNAV path symbol will appear on the PFD. Set the ALT SEL altitude to 3000ft, which is the published altitude for our selected approach and click on VNAV button on the autopilot panel.
*1. check green "LNAV" and "ALT" on top of PFD. and check Altimeter indicator. you can see Pink V


after passing TOD, ALT would change the  VNAV PATH on PFD.
then Pink V simble will be down. and vertical speed indicator show you -1.8(-1800feet/min).

Arrival

Descend:
After passing the TOD, reduce PL to maintain 240kts.
*1. Flight/Idle to keep speed. if you make Engines's up, it will be above the MAX speed. that's terrible. gravity make speed. you have to understand that.

set decision altitude (DA) (set 60ft in our case).


passing FL100(10000 feet on QNH), set the destination airport pressure of 29.97 Inches


Switch on passenger signs
select seatbelts to ON and turn on Landing Lights.


When passing the HABBS waypoint we will begin our approach preparations:
*1. check Navigation on MFD1.

Propeller and airframe deicing OFF
*1. if you checkd these switches before.

Standby fuel pumps ON
PTU ON
Auxiliary Fuel Pumps ON
GPWS flaps selector to 15

Arm the approach mode of the FMS by pressing "ARM APPROACH"


and than "TUNE APPROACH" on the NAV page.
*1. it's AutoTune by your Approching runway setting.


Press LSK8 for "Act APPR"


 This will also tune the correct ILS frequency at the NAV1 receiver. Bring up the NAV CDI pointer on the MFD by pressing the FORMAT button for >2 seconds


*1. MFD mode was changed.


and set the ILS course of 58 degrees.


We are now ready for the approach

Shortly after passing HABBS the FMS will enter the approach mode, and the VNAV will also switch to approach mode, thus showing the simulated glideslope, and disconnect automatically cause we are below the glide slope altitude.  It is theoretically possible to select ALT,  re-engage the VNAV and fly a fully automatic FMS ILS approach, however for the purpose of this tutorial we will use the regular ILS approach in order to demonstrate the related autopilot functionality.
*1. just wait for HAABS. check Top Right on MFD. this is BIPRO. it will be HAABS.

ILS Approach

Upon the VNAV disconnect, set VS and ALT SEL to maintain the current vertical speed following by leveling off at 3000ft
*1. diamond signes are center of LOC and GS.
*2. it will be centre.automatically by Autopilot.


the HDG bug to the current heading, press "HDG" to engage the "HDG SEL" mode
*1. example the below 73 degrees. just set your heading.


 and . Switch NAV SOURCE to NAV1, and press APPR to intercept the ILS.


*1. when airplane is caching Localizer(LOC) and Glide Slope(GS), PFD mode would be changed.


Watch out IAS.


Using PL, reduce the speed to under 200kts and deploy flaps to 5 deg.

Switch on landing lights.
*1. you had switched on already before.

 Continue reducing speed, under 180kts set landing gear down and flaps to 10 deg.


Approaching 1000ft, turn the bleeds OFF/MIN.

advance the Condition Levers to MAX


 and disengage the autopilot by pressing the AP button on the glareshield or the red button on the yoke.
*1. you have to control airplane on your own

Landing:

Deploy flaps to 15 deg. and maintain the speed of 130 kts.


Maintain the approach power setting all the way until the main wheels touchdown, after which reduce to FLT IDLE (a "click" will be heard when just passing the FLT IDLE gate)


settle the Nose Gear on ground and reduce further to DISC.
*1. it's Power Levers.


After touchdown, retract the flaps and set the control lock.


It is not necessary to use reverse thrust on a long runway like CYUL 6L.

Taxiing to the gate: anti colision lights Red
switch off landing lights, switch on taxi light.

Switch the wx radar to standby


spoilers to "taxi"


switch off auxiliary fuel pumps.


Once at the gate, set parking brakes, move CL to START&FEATHER , PL to DISC.


and turn the Standby Hydraulic Pump and the PTU off.


After 30 sec move CL to FUEL OFF to shut down the engines.


Thanks for Everyone

Thank you for releasing Q400, Majestic Software!
amazing addon, good tutrial, nice forum. we can't live without your software.

"No. MJC8 Q400, No Life" :D

and you guys who gave me advices on official forum and twitter. thank you so much.

                                                                   re-write & transrate Zephyr_RU

Apendex and Release History

these were changed from Original English Edition

1. added some text and 69 pictures on original 45 images for detail to understand.
2. add notes for newbies.
3. add notes for Prepa3D v2 users
4. fix misprint.
5. picture's file name. -addXX mean Adding new file. -changeXX mean changed orginal file.