Hello Steve 76 and Ned-Air To Air.
Ned, the intent is for more powerful machines and preference is for twins... however that does not preclude singles provided they can maintain the required HOGE margins that are being considered. This requirement is under development.
Steve 76, I sent you an email re RFS CRM requirements. But I have posted the annex to their RFT which stipulates PIC's requirements here:
www.rhoaviation.com.au
and go to the HUET or CRM pages.
Hope this helps.
Conway