Before opening, you will need do your due diligence and research in order to properly get acclimated so you can provide the service required. Here’s a list of what I check prior to opening.
- Approach Plates
- Airport Diagram
- VFR Sectionals, you can use a site like skyvector.com
- flightaware.com to check what types of aircraft fly arrive and depart.
- LiveFlight Airport Charts for gate sizes in meters.
- This post on runway requirements.
That’s only some of the resources available. Then most importantly, I will confirm what I found on LiveFlight or FlightAware for size requirements by spawning in different sized aircraft, taxiing around to see if the aircraft fit in their respective gates and taxiways.
Then I’ll takeoff to try to determine the MSA altitudes using both my eyes, the AGL (Above Ground Level) altitude and the resources I listed. Fly over peaks, mountain ranges, ect. to determine that.
Then whilst controlling I will use ForeFlight and/or ifatc.org as backups.
Use all available resources at your disposal.