Munar Injection Methods

[Bluejayek]

I was wondering what methods all of you guys use to do an efficient Munar injection burn, what sorts of rules of thumb you use to make sure you don\'t miss.

Personally, I set myself up in a circularish orbit between 70 and 150km, and then start my injection burn when the Mun is 1/8th of an orbit behind where my apoapsis would be after the burn.

[Kosmo-not]

Most of us wait until we see the Mun on the horizon before doing our injection burn.

[Anachronda]

I just hang my apoker out there slightly past the Mun\'s orbit, then crank up the time warp and wait for the Mun to catch me. But I\'m an idiot.

[RC1062]

I use a Hohmann transfer to get just below the Mun\'s orbit. That allows me to catch up within an orbit or two.

It was also perfect for Minmus. Just burn at the point where the two orbits would meet for the plane change.

[Bluejayek]

Both of those two above methods seem like they would take a long time. Think of your kerbals oxygen supply!

I did however use a similar method when I went from minimus to the mun. Dropped into a circular orbit just below the mun and waited a couple orbits to catch up.

[RC1062]

Both of those two above methods seem like they would take a long time. Think of your kerbals oxygen supply!

I did however use a similar method when I went from minimus to the mun. Dropped into a circular orbit just below the mun and waited a couple orbits to catch up.

Ah, no. You\'ve got to time it correctly. It is very fun.

[maltesh]

Most of us wait until we see the Mun on the horizon before doing our injection burn.

Basically this, both for the Mun and for Minmus. I\'ve flown several dozen flights to the Mun this way, and I\'ve only missed it twice. The Munar SOI is huge and close.

Minmus is slighltly harder because of the orbital tilt, and it\'s hard for me to see it from the play screen, so I sight from the map screen.. I typically do a plane correction at about the Mun\'s orbit. to bring my apoapsis into contact, then at about 3/4 of the way out, I start 'feeling around' on the orbit for the SOI\'s patched conic to appear by burning to slide apoapsis forward and backwards along the orbit.

Perhaps the latter 'feeling around' is a bit wasteful (not to mention a bit tricky without Mechjeb), but my standard Stock Munlander is suddenly getting into orbit with a lot more fuel than I\'m used to, and I might as well burn some of it off before ditching the LFR three boosters that are typically still attatched at the time, and will likely be thrown at Minmus with plenty of fuel still on board.

[VincentMcConnell]

100KM orbit circularized. Wait for the Mun to rise on the horizon in front of you and then full throttle on pro-grade until your Apokee is like 12,100KM.

[ddavis425]

I recently made a diagram of how I get there, it\'s pretty much the same thing as burning at Munrise/Minrise except I stay in the map view instead.