While I destroyed some of the trucks in the convoy (the one that appears the night after you destroy Base 1), one truck was able to reach Base 1.
When the truck reached Base 1, the message "Convoy cleared" appeared on the screen and would not go away. Closer examination revealed that the message would occasionally go away for a split second, only to reappear immediately after.
The act of landing is slightly terrifying since I know a crash will result in an entire night being lost.
On a related note, I did not attempt the tactic displayed on the diagram (where the engine is brought to 000 power), since I didn't want to crash.
Also, I find it difficult to accurately drop bombs. Is there any advice you can give us on how to hit targets more easily (besides practice, of course)?
In spite of those issues, though, I'm enjoying the game so far. The lady's words of encouragement when I do hit a target are surprisingly invigorating, despite the language barrier, and the idea of a vast airfield where you're somewhat free to wreak havoc is nice.
Keep up the good work.