Salute!
There are many things that help interoperability and the biggie for NATO partners with the Viper and Now Stubbie is the motor. The black boxes are not a problem with the logistics path. The hydraulic actuators and such are common.
So except for the Bee VTOL features, looks like we will have lottsa common things in the maintenance and logistics arena. And the avionics hdwe and sftwe seem to apply to all variants, huh?
Gums sends...