Difference between revisions of "Tutorial: Orbital Docking with the Kergena Target Vehicle"

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(step 2: orbital adjustments)
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docking is a reletively hard task to do and may get you realy frustrated, so intil you got the basicks of flying and orbiting i sugest you put a holt on docking for a wile.(pictures to be added soon)
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[[Docking]] is a relatively hard task to do and may get you really frustrated, so until you got the basics of flying and orbiting I suggest you put a halt on docking for a while.(pictures to be added soon)
  
== step 1: Geting In To Orbit ==
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== Step 1: Getting in to Orbit ==
  
what you whant to achive here is geting the firs ship in a circular orbit (this is not nesesery but will make your life a lot easyer).  to circulise your orbit you whant to use your burn at perapsis and apopsis. now lanch your second ship and get it into orbit. try to lanch abit sooner then the time that the target flyis over ksc.
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What you want to achieve here is getting the firs ship in a circular orbit (this is not necessary but will make your life a lot easier).  To circularize your orbit you want to use your burn at [[periapsis]] and [[apoapsis]]. now launch your second ship and get it into orbit. Try to launch a bit sooner then the time that the target passes over [[KSC]].
  
== Step 2: Orbital Adjustments ==
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== Step 2: Orbital adjustments ==
  
Now set the other craft as target (by rite cliking on it then set as target). it is very important that te asending and disending nods are 0.0 , if not you will need add manuvers to fix this.
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Now set the other craft as target (by right clicking on it from map mode then set as target). It is very important that the [[ascending node|ascending]] and [[descending node]]s are 0.0 , if not you will need add maneuvers to fix this. To get your ships closer together, use a bigger orbit if you are ahead of the target, and a smaller orbit if you are behind. In either case the ship on the smaller orbit goes faster, and will catch up to the ship in the bigger orbit. Also, keep the orbit of the second ship elliptical, with an intersect along the first ships orbit. I may take several orbits to catch up if the second launch was not very close.  
try to get your orbit a bit smaler then the other one this will be very helpfull to getind the ships reletive speed zerod out.
 
  
== step 3: orbital randevoyse ==
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== Step 3: Orbital rendezvous ==
  
now that your orbit is adjusted you will need to add a manuver that will get you in the other ships orbit as sown. if you have done a good job on the lanch you may have an intercept of 5km or less on the manuver.now it is inportant to note that when you have a hier orbit then the target you travel slower so it is caching up to you and when you are at a lower orbit you are caching up whith it. taking that into acount you shud be able to lower or hier your orbit so that you get a ranevoyse of 5km or les.
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Once your orbit is adjusted you will need to add a maneuver that will match you with the other ships orbit as shown. If you have done a good job on the launch you should have an intercept of 4km or less on the maneuver. Now you will need to retro burn until your relative speed to target reaches almost zero. So now aim your craft at the purple dot that resembles the target and fire your engines!! Make sure you're not going too fast:
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* A relative speed of 20m/sec is a good speed for 2km or more.
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* When you reach 1km decrease it to 10m/sec.
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* As you are at 600m you should decrease your relative speed to 5km/sec.  
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When getting close to the target you want to stop using the engines because you may blow up the target ship ^_^, and use [[RCS]] for the remaining movements .
  
== step 4: geting close to the target ==
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== Step 4: Maneuvering next to the target ==
  
now that you are 5km or less away from the target you will need to retro burn untill your reletive speed reachise zero. so now aim your craft at the purpole dot that resempoles the target and fire youre engins!! make sure youre not going too fast a reletive speed of 20m/sec is a good speed for 2km but when you reach 1km decrese it to 10m/sec as you are at 600m you soud decrease your reletive speed to 5km/sec when geting close too the target you whant to stop using the engins becase you may blow up the target ^_^.
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To maneuver while close to the target, you want to use the option [[docking]] mode at the lower left corner of the screen. Now enable RCS. Remember that wile in docking you can not turn the ship but you can only rotate it so before you move in to dock stop at 50m away of the target make sure your relative speed is 0.00m/sec, and switch to the first ship and make sure its docking port is facing back at the second craft.
  
== Step 5: manuvering next to the the target ==
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== Step 5: Docking ==
  
to manuver wile close to the target you whant to use the option docking at the left corner of the screan now anable rcs. remeber that wile in docing you can not turn the ship but you can only rotate it so before you movi in to dock stop at 50 -10 m away of the target make sure your reletive speed is 0.00m/sec and swich to the other ship make sure its docking port is looking at the craft.
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Now quick save so you don't screw it up ;)
  
== Step 6: Docking ==
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Move toward the target port slowly making sure booth ships have [[SAS]] on, and.... tada they are connected! If not it's because both ships have SAS on and one has drifted off angle. Don't panic just turn SAS off and it will connect by its-self due to the magnetic attraction of the docking ports. After a short pause, the view will change indicating both ships are now as one.
  
Now quick save so you dont scru it up ;)
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== Step 6 ==
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Now jump off your chair say f<3 yea and pat yourself on the back, "congratulations" you just made your first docking.
  
move toward the target port slowly making sure booth ships have sas on. and.... tada they are conected if not its becas both ships have sas on dont panick just turn it of and it will conect by its self du to the magnets on the docking ports.
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This tutorial needs quite a bit of improvement fell free to edit.
 
 
== step 7 ==
 
now jump of your chair say f<3 yea and pad your self on the back congradulations you just made your firs docking
 
 
 
this tutorial needs quite a bit of inpruvement fell free to edit
 

Revision as of 21:39, 29 September 2013

Docking is a relatively hard task to do and may get you really frustrated, so until you got the basics of flying and orbiting I suggest you put a halt on docking for a while.(pictures to be added soon)

Step 1: Getting in to Orbit

What you want to achieve here is getting the firs ship in a circular orbit (this is not necessary but will make your life a lot easier). To circularize your orbit you want to use your burn at periapsis and apoapsis. now launch your second ship and get it into orbit. Try to launch a bit sooner then the time that the target passes over KSC.

Step 2: Orbital adjustments

Now set the other craft as target (by right clicking on it from map mode then set as target). It is very important that the ascending and descending nodes are 0.0 , if not you will need add maneuvers to fix this. To get your ships closer together, use a bigger orbit if you are ahead of the target, and a smaller orbit if you are behind. In either case the ship on the smaller orbit goes faster, and will catch up to the ship in the bigger orbit. Also, keep the orbit of the second ship elliptical, with an intersect along the first ships orbit. I may take several orbits to catch up if the second launch was not very close.

Step 3: Orbital rendezvous

Once your orbit is adjusted you will need to add a maneuver that will match you with the other ships orbit as shown. If you have done a good job on the launch you should have an intercept of 4km or less on the maneuver. Now you will need to retro burn until your relative speed to target reaches almost zero. So now aim your craft at the purple dot that resembles the target and fire your engines!! Make sure you're not going too fast:

  • A relative speed of 20m/sec is a good speed for 2km or more.
  • When you reach 1km decrease it to 10m/sec.
  • As you are at 600m you should decrease your relative speed to 5km/sec.

When getting close to the target you want to stop using the engines because you may blow up the target ship ^_^, and use RCS for the remaining movements .

Step 4: Maneuvering next to the target

To maneuver while close to the target, you want to use the option docking mode at the lower left corner of the screen. Now enable RCS. Remember that wile in docking you can not turn the ship but you can only rotate it so before you move in to dock stop at 50m away of the target make sure your relative speed is 0.00m/sec, and switch to the first ship and make sure its docking port is facing back at the second craft.

Step 5: Docking

Now quick save so you don't screw it up ;)

Move toward the target port slowly making sure booth ships have SAS on, and.... tada they are connected! If not it's because both ships have SAS on and one has drifted off angle. Don't panic just turn SAS off and it will connect by its-self due to the magnetic attraction of the docking ports. After a short pause, the view will change indicating both ships are now as one.

Step 6

Now jump off your chair say f<3 yea and pat yourself on the back, "congratulations" you just made your first docking.

This tutorial needs quite a bit of improvement fell free to edit.