When using a custom dispatch URL, if you use a custom airframe for the type, it will always add 4022kg to the “extra fuel” field in the fuel planning section. I’ve tested this for multiple airframes, all of which are configured to add 100kg of extra fuel, not 4022kg. When using a standard ICAO code (e.g. B738) for the type, this does not happen.
Here’s an example link, which when used, will add 4022kg extra fuel:
Hi, thanks for the report. I’ve been able to reproduce and will try to have it fixed in the next version, though it might take a month or 2 before that version is released.