Here
is an easy method to get you home from the Moon. There is nothing
elaborate about this one. The basic principle is to set a course
that will get you into the Earths sphere
of influence. Then from there you let the Earth pull you in. This is
actual quite easy since there is a wide margin of error that will still
get you into Earths SOI.
Once
you aligned your ship with the Earth open up two Orbit MFDs side by
side. Set the one on the left with the Moon as the reference. This
will show you your ships current
position as it orbits the around the Moon. With the Orbit MFD on the
right side set the reference to the Earth and target the moon with the
projection as ecliptic. You are now able
to view the Moons current position in
its orbit around the Earth and your ships position around the Moon. To
reach the Earth wait until the your vessel is on the far side of the
moon. You will know when you are at
the far side when the radius vector of
the ship ( Orbit MFD w/moon as reference ) is at the same position as
the radius vector of the moon ( Orbit MFD w/earth as reference ) around
the Earth. The radius vector
is that line that extends from the
central ( reference ) body to the current position of the orbiting body.
In this case when the position of your vessel matches the position of
the Moon orbiting around the Earth
you are on the far side.
You
would think if you orient your ship prograde and begin to burn from the
far side you would go straight to earth by the Homann transfer
method. However I find waiting until the
earth rises above the moons horizon works better. So when you see Earth
rise you know it's time to go. Burn prograde until the ApD is just
under 300M. This will easily get us
into the Earths SOI.
Sit
back and coast for the next few days while we approach the Earth. In
the Orbit MFD with the Earth as reference you can watch the Rad to count
down
your approach to Earth. You will want to
warp to 100x or even 1000x to speed things up. Watch the gravity
reading at the bottom of the MFD. This will tell you when you leave the
moons sphere of influence, SOI. When
the G indicator turns form brown to red
the ship is then out of the Moons SOI and now under the suns SOI. We
must wait until we are close enough to the Earth to be under its SOI. By
bringing up the HUD in Orbit mode
it will display [ Earth ] in the upper
left of the screen when you get close enough ( ~257M for Rad ). Once under the Earths SOI maneuver retrograde and burn until you have a Ped around 8M. The Earth will now pull you home.
This
method requires no calculations on your part but be warned it will take
twice as long to make the trip back to Earth this way. This
may seem like a very crude way of
returning home but it could save your life if you didn't have the means
to perform precise calculations. Also I feel it's nice to know if I
pirated an old tin can of a ship, I could
make it home in her by the seat of my
pants. For fun you can try making this trip without any MFDs open. In
the DG using the HUD only make your burn after the Earth rises for one
minute . Good luck
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