Ok I found it
Appendix I.1 CPL Aeroplane category rating flight test
1. Flight test requirements
1.1 An applicant for a commercial pilot licence with aeroplane category rating flight test must demonstrate her or his competency, in the units of competency mentioned in clause 3, by performing manoeuvres in an aeroplane, within the flight tolerances specified in table 2 in Section 1 of Schedule 8 of this MOS.
1.2 For subclause 1.1, a sustained deviation outside the applicable flight tolerance is not permitted.
1.3 For Schedule 2 elements A2.3 and A4.2, if sufficient cross-wind conditions do not exist at the time of the flight test then, providing the examiner is satisfied the applicant’s achievement records indicate that competency has been achieved during training, the element may be excluded from the flight test.
1.4 The aircraft used for a flight test for the aeroplane category rating must have the following characteristics:
(a) cruise true airspeed of not less than 120 kts;
(b) a powerplant with one of the following:
(i) turbine engine with propeller; or
(ii) piston engine with variable pitch propeller.
Now questions that this poses.
They have no reference to MMMC so does this automatically mean a next gen aircraft with a single power lever is acceptalble.
The 120 TAS speed requirement. Casa don't specify a power setting or altitude. If an aircraft can make the 120 KTS TSAS only at 75% power and optimum altitude does it qualify.
I have to say some Arrows I have flown in the past would struggle to make 120 KTAS except in a dive.