Keywords: Ornitopter.jpg en Early aircraft design Ornitopter of Bulgarian aviation pioneer Haralampi Djamdjiev bg ÐžÑ Ð½Ð¸Ñ‚Ð¾Ð¿Ñ‚ÐµÑ Ð½Ð° Ð¥Ð°Ñ Ð°Ð»Ð°Ð¼Ð¿Ð¸ Джамджиев http //www pan bg/view_article-59-21401-Muzej-na-aviaciqta-Haralambi-Dzhamdzhiev html author Early 20th century PD-old Ornithopters Haralampi Dzhamdzhiev |