I have just recently filed a FPL - or rather tried to file it - with our C680 (Citation Sovereign)
LFLY to EDFM
-N0456F280 MABES UJ32 MOREG UL47 ARBOS/N0459F310 UL47 IXILU UN853 GIVOR UL47 GTQ G21 MAKOT/N0260F090 Z818 MANEM Q762 BADLI DCT
The german DFS flight plan office told me, that I could not file this way and they would try to give me another route. After about 2 hrs they got back to me, saying they now filed the original route, after having tried to file the exact same plan with a C650 type instead of the C680. That went through, so they called the dudes in Brussels up and they then accepted my original plan. I naturally asked was the issue was and the DFS flight planners told me, that IFPS/CFMU has descend profiles for each type and that the C650 type profile was more accomodating and thus the flight plan could be filed with that type.
Now, I have flown the C650 and still fly the C680 - if there is a jet that can descend at almost insane rates, then that jet is the 680 whilst the 650 gives you a headache in this department, especially when flying the VI and VII variant with a lower Vne, you regularly would have to use speedbrakes when anti ice is on to get 1000 to 1500 fpm. The 680 we can descent with A/I on at 2500 to 3000fpm without speedbrakes and and if no A/I is used we can descend at 4000fpm easily.
So, to cut the long story short, we get more restricted on a type that performs way better (BTW: it also really climbs, even hot and high, compared to the tired old 650s). What is wrong with Eurocontrol, have they ANY clue on aircraft types and performances ? AND why one gest a cryptic reply, instead of: YOUR aircraft cant descend good enough, thus buy another one. If the DFS flight plan office (who - according to them - tried with all hands for more than half an hour to find a "fileable" route at a halfway decent flight level - canīt really find out, how are we pilots/flight planners supposed to ?
This defies also the idea of a route catalog.