Hi,I've been installing some new aircrafts from AVSIM Library and problem showed up:B737-400 is treated as aircraft type EXPERIMENTAL and not as B737. Here are some examples:"OA123: ...OA flight 123 is type EXPERIMENTAL 17 nm from..."or"ATC: ...OA flight 123 traffic is 1 o'clock FL310 type EXPERIMENTAL"Can anybody tell me how do I change EXPERIMENTAL aircraft type to B737 without reinstalling FS9 ?? Thanks and best regards...Dubravko

The default 737-400? Something must have messed with your aircraft.cfg. Open the aircraft.cfg in Notepad and check the {General} section for the following lines:atc_type=BOEINGatc_model=B734If they're not there, add them. atc_type= is the one that's affecting you. If there's something there that the sim doesn't recognize, they'll call you an experimental. (I hate it when that happens :) )Jim

For some unfathomable reason a lot of aircraft modelers want to useatc_type=BOEING AIRCRAFTWhich does not work Remember these entries are computer codes, not words in English.Computer codes must be exact.

Yes...problem solved!!Thank you and best regards!!Dubravko