Built an apollo style orbiter and lander for Mun.
Had the crafts docked and in orbit of Mun. There was a stack decouple stuck between the docking ports because I was daft and didnt put the stack separator on to attach the lander to the cargo bay.
When I decoupled the lander close to the periapsis it lost all of its orbital velocity and dropped straight down to the mun.
I mean it was an easy landing but if landing wasn't my intention that may have been somewhat of a nuisance.
Orbital information:
AP: 55km
PE: 18km
notes:
Small Docking ports directly between MK1 Lander can and the Gumball (3 seat command module)
Stack Decoupler between the docking ports
Separation by clicking on the lander docking port and clicking decoupler
Landers orbital velocity was zerod
orbiter got into a weird wobly state with an off centre camera (all of the parts are wobbling around like crazy as is the kerbal inside)
Still have the save if need more infomation.