At this time, EDDF is set as a CAT5 airport. ( 9600PAX), which is for me a “Bug” compared to much other… Maybee this can be a little bit unfair for the future 
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Try and see if the answer can help you..
https://shop.simfly.io/ama/?shared=173
absolutlely not… compared to EDDB which is Cat 6…
Here’s a short data comparison between EDDF (Frankfurt Airport) and EDDB (Berlin Brandenburg Airport) based on the latest available figures (2023 data where possible):
| Feature | EDDF (Frankfurt Airport) | EDDB (Berlin Brandenburg Airport) |
|---|---|---|
| IATA/ICAO Code | FRA / EDDF | BER / EDDB |
| Location | Frankfurt am Main, Hesse, Germany | Schönefeld, Berlin/Brandenburg border |
| Passengers (2023) | ~59.4 million | ~23.1 million |
| Aircraft Movements (2023) | ~475,000 | ~185,000 |
| Cargo Volume (2023) | ~1.9 million tons | ~28,000 tons |
| Number of Runways | 4 | 2 |
| Hub for | Lufthansa, Condor | Eurowings |
| International Rank (Europe) | Top 4 busiest | Mid-tier |
Key Takeaways:
- EDDF is a major international hub with much higher passenger, cargo, and aircraft traffic.
- EDDB serves mostly European and domestic traffic and is newer (opened in 2020).
- Frankfurt (EDDF) is a key global hub; Berlin (EDDB) mainly handles point-to-point traffic.
So you’re say they should be inverted category?
Absolutley in minimum. EHAM is CAT 7, and its not in the TOP 4 like EDDF
Here are the Top 4 busiest airports in Europe by passenger traffic (2023):
| Rank | Airport | Passengers (2023) | Country |
|---|---|---|---|
| 1 | London Heathrow (EGLL) | ~79 million | United Kingdom |
| 2 | Istanbul Airport (LTFM) | ~76 million | Turkey |
| 3 | Paris Charles de Gaulle (LFPG) | ~67 million | France |
| 4 | Frankfurt am Main (EDDF) | ~59 million | Germany |
Notes:
- Passenger numbers may vary slightly depending on the source.
- Istanbul Airport is often included in European rankings even though it’s partially located in Asia.
Even though there are many factors to take under concern, try and write directly to staff, they can review your info.. for now I doubt someone will like to spend that ammount , it might not be so urgent. 
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