Different response required if you want the job
, but I'd just tell them that "the people who designed it are the aerodynamics experts, you just want me to fly it, why should I care if it is a biplane or has a tricycle undercarriage, 2, 3 or 4 hydraulics system; I'm sure they had a good reason and that because of that you, CX, decided to buy it".
I'll get me coat....