I see you guys have making design sketches and making CAD models as the 1st two tasks, but I think realistically this skipping over the bare basics. If I were to sit down and make a sketch, it would almost be a waste of time since I have no idea about the specs and functionality, so for starters, shouldn’t some basic questions be answered:
What is this based on, Dual-Rotor? Tri-Copter? Quad-copter?
==>> For safety , control, and stability, I would assume Quad based design is the best choice, Tri-Copter could be a contender, however flight controls will be a bit harder to configure, also you’re pretty screwed if 1 of those engines goes down, Quad design flight controls can be programmed to land relatively safely if 1 out of 4 engines shuts down. You can also take the basic principles of current quadcopter flight controllers and apply them on a larger scale, if you went with a dual rotor, I have absolutely no idea how that would have maneuverability and be anywhere near safe.
If a human is to get on this thing, what is the max load the bike would have to support?
How much thrust is necessary ?
Which engines / blades / fuel type combination could be used to get enough RPM to achieve lift requirements and how far is the hover bike should the bike be able to travel on max load?
How do controls work? As in how do you communicate/give input to the flight controller, do you lean with the body, if so what happens when you lean too far? Will this use the standard 3 axis gyro / 3 axis accelerometer combo with barometer and rangefinder for altitude hold?
What will be the intermediary between the flight controller and the engines, needs some type of speed controllers
What materials will this be made from, they will have to be as light as possible while being able to hold 3-4 engines, diesel… for example if that is the fuel, blades, a persons body weight, etc…
I could go on, but to make designs, I think first there should be at least some basic ideas agreed upon before anyone goes into CAD at least.
Here’s an absolutely brilliant hover bike which I believe is somewhere close to production:
The design is unbelievable on this, it’s a 4 rotor design however the rotors are in pairs and stack on top of each other with what looks like a 30-40% overlap, very impressive if you consider the precision needed to get lift from that configuration.