I don't know the answer to to this, but it seems like most of the risk is being passed on to the customer, ie. Lockmart stuff up something and it needs to be redesigned and refitted to the fleet and that cost is worn by the procuring governments even though it is the manufacturer that over promised and failed. I think the aircraft will be great once finished, but it does seem Lockmart are taking us for a ride and there is a negative incentive for them to make it right the first time. I have no knowledge wether this is true, it just seems like it from the uneducated outside.