There was a player named Pand, who took the time to make maps with all the hangars and other items numbered. They had the same numbers used by the game system. I am sure that someone here can point you to a place to download Pand maps version 3.
Using the .dt command, I can look at the map and tell which hangar is down, and for how long. Some people think criticize this, but it helps when picking targets, and when deciding whether or not to run a box of supplies to a base or field.