I have been trying to find more info about the SC-28 Wolke Ornithopter. I have found some German magazine articles from around 1950-1960. I was wondering if you might have other sources, since none of the articles mention the name SC-28 Wolke. Would you like to trade some information?
If so, please call me at 1-585-482-3481, or e-mail nathan at ornithopter dot org.