Thanks Hans, so reconstructing, correct me if I am wrong:
Saturday morning: on the platform, noth side:
847, 834 and 861
Hangared: 842 and 839
at 15:30:
platform: 834 and 861
Hangared: 842, 847 (towed into hangar) and 839
At 18:30
platform: 834, 861, 842 (towed from hangar)
Hangared: 847 and 839