Japanese Page is here .
Step 1: The relation of size of animal and their output power and requied power for flight.
Step 2A: Estimation of requied minimum power to flight by momentum theory (Japanese only, now)
Step 2BFMan as a locomotive engine
Step 2.5: Estimation of requied minimum power to flight by wing element theory (Japanese only, now)<
Step 3A: CFD of flapping with voltex method (Now under project)
Step 3B: Maximum effient flapping method. (Now under project)