The lack of forward thrust is due to the wings stiffness. As a wing moves down or up and, the ornithopter, forward, the combined movement of the fore is at a large angle with the longitudinal axis of the ornithopter. If the wing cannot twist around its end-to-end axis, like a flag, its angle of attack is excessive, causing too much drag and too little lift. If the wing could twist, the drag would be much lower, and the lift much greater and with a forward component when it moves downward. An assimetry is needed when it moves upward, the wing's angle of attack should be close to zero so as not to create too large a reversed lift, but its longitudinal component would still help thrusting forward. It isn't easy to set the downward and upward angles of attack (no geometric references at all, much dependence on vertical and horizontal speeds).
I bet that would fly if you made a membrane wing (plastic wrap wing) and added a tip to your spar so that your wing tip is "L" shaped. This would let the wing create more thrust plus it would also reduce the weight.
What Is Islam? Islam is not just another religion. It is the same message preached by Moses, Jesus and Abraham. Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God. It reminds us that since God created us, no one should be worshipped except God alone. It also teaches that God is nothing like a human being or like anything that we can imagine. The concept of God is summarized in the Quran as: { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4) Becoming a Muslim is not turning your back to Jesus. Rather it’s going back to the original teachings of Jesus and obeying him
