Having in mind the importance of the Proton Flare as an extraordinarily complex form of the Solar activity being of interest both for astrophysics and geophysics, an international scientific attempt has been organized named "Proton Flare Project (PFP)" foreseen as study of various phenomena of an isolated Solar event. The Proton Flare Project is a part of the programme of the International Years of the Quiet Sun, and has been performed under the leadership of Dr. Z. Švestka, Astronomical Institute, Ondrejov, and Dr. P. Simon, Observatoire de Paris, Meudon. In the project 54 institutions from 18 countries have participated. This contribution exposes the results of our measurements during the PFP on the 7th of July, 1966. Exchanging the data with the observatories abroad involved in the PFP, we have got information on $H_{\alpha}$ and Radio emission during Flare as well as some data about Interplanetary magnetic field, and Ionospheric data, as well.