Well

Depend on the mission and the concept, this adapter could be so many different things according to the picture i've see... Payload / Fuel / APU / Antenna / Dock / Abort module so many variant...

Ok... what is the name of this concept and who make that!

Fair I've also see this morning the spaceplane can't transmit science.... i think that need to be fixed, that look stupid, just like for the Crew report.

I seriously think to make it monoprop fueltank (optional - 0 by default, and maybe a little electricity)

Test in game work fine, i've also tested with other docking system from other mod. But Docking Jr is the best for this small spaceplane (or Restock Docking Jr work fine) Of course not a lot of docking at this size, but still some option. Those are bigger and don't really match (that a little dumb) but fit for most of them or need to be a little clipped on the bottom: The BdB active dock fit but need to be clipped inside the cargo bay, but that work and fit nicely : That beautiful for this small spacecraft! ----------------- Size remind :

http://www.aerospaceprojectsreview.com/blog/?p=13 Maybe later like a probe core module or an other variant

This Transtage is still in developpement, idk when he could be aviable

The cockpit variant "Sanger" in game

After many test, this is what i see at first for docking. A Crew Tube Payload to put in the cargo bay with 2 variant ~2/3 cargo bay size and full size Top cylinder is docking Jr size.... i need to make some test in game to see if i have the place for the docking and if i could close the cargo bay. Also on the screen... a new cockpit, i see it like a X-20 evolution. This "Sanger" Cockpit have a remote control capacity. I know it is not really X-20 on the shape, but i've thinked that could be great to have a cockpit variant to match other parts... it's also inspired by the Martin Bell X-20 purpose.

I think that something actually planned because i've see more other picture with these "external" booster

I actually work on the X-20 Moroz Spaceplane, so Knes is on hold for a moment. Knes have already a lot of parts actually. So i think before adding new parts, a little hold to clean everything and maybe try some Bug Fix could be great. Please send me every bug or weird thing you think that need to be fixed.

try 64 Kn Thrust like IRL, also remember Ariane 1 is arround 1.5t payload

I've thinked to that, like a little claw on the cokpit, that could be interesting

We could already do that if you put the fairing on top of the launcher, the adapter don't need to be modified. You probably think to something like that :

Many thanks, I actually try to see an option for the docking because that a big problem, i've also thinked to make a half cabin, and half cargobay... i don't have decided. In stock scale a Titan IIIC could probably put the X-20 to duna I don't want to include a docking port, too many variant and size depend on the mod you use, i like more the idea of having the space to put the docking you want, in a small cargo bay or something different.... Also have you noticed a 0.9375 module fit completely the cargo bay, so a docking at this scale is a little too much for this small plane. But anyway, most important is i've adopted this mod, i really like this small spaceplane, and i want to make it more useful, so i want to add some little parts. I still hope @IronCretin could send me these original assets, like psd texture files.