Unfortunately, with it being an in-development version you have to build the package yourself, but I have added the instructions on how to do so down below thanks to Dan Smith on Facebook.
"You need to go into the KC-135 repo, click the green “code” button, and download the zip.
Then in MSFS dev tools, you need to open the project by navigating to the (unzipped) XML file.
Then build the project and move it to the community folder"
Awesome! I’m testing out the RC-135 now and I can’t seem to turn the nosewheel on the ground. Not sure if I’m doing anything wrong or if it’s just due to the early build.
Impressed with the external model and it’s animations.
Being able to add the drogue and MPRS, are a nice touch.
I’m flight crew on the actual aircraft and would be happy to help you. It’s missing some flaps, as well as the obvious features that are WIP. Thanks!