And here are the dimensions for HPH's Macchi:
Wingspan : 37cm
Length : 25cm
So the Ca 3 will be almost twice as wide and nearly half as long again, with three times the number of engines &, crucially, almost three and a half times the surface area of the wings, three times as many tail fins, three times as many wheels, four times as many seats, almost a ton more bombs.
Can't see HPH selling many of these?