They have a Private Placement Memorandum
I am not sure what it is for. They had one for the factory to build them, so I believe this is for the money to build them and install WheelTug in the planes. As the air transport companies do not put up any money up front the factory has to build them install them and wont collect a dime for the first month or two. so they need money to start training people. make test models production and to tide them over until the money coming in equals the money going out. probably 3-4 months as a guess. no more than 6.