Address reviewer 4 comments

[petebachant]

1. Several key quantities and symbols such as Cp and U are used in the introduction prior to their definitions later in the manuscript. Please define quantities and symbols near first instance of use.
2. Results are presented and discussed with those from a previous study of a similar turbine. For ease of comparison, please add the UNH-RVAT parameters to Table 2.
3. It would be helpful to see Figure 8 with the UNH-RVAT results on the same axes or as additional plots, as they are referred to in the results section and in the conclusions.
4. Virtual camber of blades is discussed in the results section, where it is suggested it plays a role in Re-convergence. Reference 9 is used here, which links to a data repository. The claims using this reference are therefore hard to verity. Is there an additional source to back this up?
5. Figure 10 shows power losses due to strut drag, both plotted as function of tip-speed ratio. Have you confirmed these losses collapse with TSR? i.e., for equal TSR but different combinations of U and \omega, do you get the same result? Similarly, how is TSR defined for a ‘stationary’ test?

[wosnik]

See comments below.

1. Several key quantities and symbols such as Cp and U are used in the introduction prior to their definitions later in the manuscript. Please define quantities and symbols near first instance of use.

Ok,done.

1. Results are presented and discussed with those from a previous study of a similar turbine. For ease of comparison, please add the UNH-RVAT parameters to Table 2.

Ok, done

1. It would be helpful to see Figure 8 with the UNH-RVAT results on the same axes or as additional plots, as they are referred to in the results section and in the conclusions.
2. Virtual camber of blades is discussed in the results section, where it is suggested it plays a role in Re-convergence. Reference 9 is used here, which links to a data repository. The claims using this reference are therefore hard to verity. Is there an additional source to back this up?

Cite Energies paper.

1. Figure 10 shows power losses due to strut drag, both plotted as function of tip-speed ratio. Have you confirmed these losses collapse with TSR? i.e., for equal TSR but different combinations of U and \omega, do you get the same result? Similarly, how is TSR defined for a ‘stationary’ test?

Same question as other reviewer, addressed in revised manuscript.