After reading the answers to:
- Will the Neumann drive start testing aboard the ISS some time in 2018?
- What is Australia's Bartolomeo platform? When does it arrive at the ISS; when and where will it be attached?
I'm wondering which direction the Neumann drive will point, and what the maximum thrust it could potentially apply to the ISS. I realize this is primarily for testing the engine, but it reminds me that at one point there was an interest in installing VASMR on the ISS to altitude recovery. In this case this is just a test, but test or not, it will produce thrust and torque on the ISS that will be detectible as changes in orbital parameters and attitude.
For more on VASMR and the ISS see: