Ok, the complete set up is AXI 2810/10 running from a GP3300 8 cell pack and I have a brushless 40amp ESC BEC. All of which are only a few months old. I also have four servos on board (1 rudder, 1 elevator, 2 ailerons).
I have cut more holes to provide even more venting to the ESC just in case over heating is making it cut out. I noticed in the ESC instructions that the BEC is rated at 5V/4Amps, which seems quite high to me...would this be affecting it by cutting in too early?
A recent modification was to install a second aileron servo, which I think has made the problem worse...[&o]

Many thanks

Sam
P.S is the LVC the same as the BEC??