An ion wind is not like regular wind, so no, it will never act like regular wind. I'm uncertain by what you mean about having the same strength as regular wind. What exactly are you talking about? Some sort of propulsion device?
Since E = mc^2, how can photons be massless? If a photon has no mass, then, according to Einstein's formula, its energy is given by E = 0 x c^2, which is 0. Yet, photons do have energy. This seems to be a complete contradiction. Please explain! Thank you.