NLR rapport TR 80065 C d.d. juni 1980. Continued investigation into the failure of J-85 diffuser casings. NLR rapport TR 80079 C d.d. juni 1980. Investigation into the mechanical properties of the electron beam weld in J-85 diffuser casings. NLR rapport TR 83014 C d.d. 1-1983. Investigiation into the repair welding of J-85 diffusor casings. NLR rapport TR 83058 C d.d. 5-1983. J-85 stall investigation. NLR rapport TR 83060 C d.d. 02-1983. Operational usage of the J-85-Can-15N engine.