Turn fuselage back after finished riveting the lower skin. Deburr and primer stabilizer mounting brackets 6-B-1-8 and -1-9. Rear panel 6-B-3-6 and elevator stops -2-52 together with angles 6-B-4-50 and rudder hingle 6-B-2-7. After som hours drying, sanding, clean drill holes and mount the rivets. 4,5 Kg pop-rivet nails means about 4500 rivets are used until this day.