I have asked how you manage the TRANSFER PUMPS to ensure that one is submerged in fuel with the change in pitch attitude with no reply.
My understanding is the one pump may be above the fuel and switched off.
Thats the procedure according FLM. A dry running fuelpump gives a CAUTION and has to be switched off. So when in hover atttitude, the FWD pump will be the first when the main tank is coming to around 60 kg. In cruise flight ( nose low ) it will be the AFT pump. You have to consider it, when transitioning to cruise after long hover flight and low fuel in main tank -> AFT pump off and FWD pump ON again!!!
skadi