Altought i´m very, VERY sick since yesterday night (ultra cold extreme, because we change temperature from 2 c to even 22 c almost all days and in my work is a quite cold too) i started slowly the conversion of my second Me-262A-1 to Me-262A-1a/U4 armed with a megabrute 50 mm cannon, made with 2 pieces of different electrodes. must add a little carenate just near the cannon and repaint completly my oldie plane as if was one of the JG7, altought apparently just the JV 44 used the 2 planes made