The DC-9 with all possible variants is quite a mess.. But here's what's updated (not much):
- DC-9-10; max pax capacity (86->90), cabin crew (3->2), rwy requirement (higher)
- DC-9-15; cabin crew (3->2), rwy requirement (higher), added 'Extra fuel tanks' weight variant (+range, -cargo space)
- DC-9-15F; new model (cargo)
- DC-9-20; renamed as -21, cabin crew (3->2), rwy requirement (lower)
- DC-9-30; renamed as -31, launch/certification dates, rwy requirement (higher), max pax capacity (119->115), weight data adjusted
- DC-9-32; added new model, same as -31 but with different weights and engine options (with hushkit options)
- DC-9-33F; added new model, same as -31 but with different weights and engine options (with hushkit options), cargo only
- DC-9-34; added new model, same as -31 but with different weights and engine options (with hushkit options)
- DC-9-40; renamed as -41, launch/certification dates, max pax capacity (128->125), rwy requirement (higher), added 'Extra fuel tanks' weight variant (+range, -cargo space), changed engines so that JT8D-11 and -15 variants are not introduced right at the launch
- DC-9-50; renamed as -51, rwy requirement (higher), added 'Extra fuel tanks' weight variant (+range, -cargo space), changed engines so that JT8D-17 variant is not introduced right at the launch
Most of the data was correct already (actually pretty much all data for the basic models).. Apart from the missing extra range variants.
DC-9-10 data is not implemented into running GW1 since model was already introduced. Other models will be added there soon.