Slogan9

I was playing around with the part files and I 'changed' some parts quite dramatically and (dont ask me how) but I created a srb that would be able to touch the moon and kerbin at the same time due to it's immense size and it did not crash my game, however when I rebooted ksp the game just crashed until I deleted the part. FYI this was in 0.13ish

It may be that you need to perfect your technique or it may be a case of your rocket being too heavy, meaning that you need to ditch some unnecessary parts (like the parachute as there is little atmosphere on the moon and who cares if they crash into kerbin); you may need to add a few tri-couplers so you can add moar BOOSTERS

What are the criteria for a veichle being a plane as many of my re-usable rockets use wings and can land in one peice

Thanks. I felt really stupid.

Can someone tell me how to get a successful mission ending as I either get a catastrophic failure or I have to manually abort the mission. I have completed many successful orbits and landings but I always have to manually about the flight. Can someone pls tell me what is needed for a successful flight.