PK+QP loaded on the Scheuch-Schlepper with inflation bags. This was one of several experiments to find a suitable method of retrieving a Komet after landing. A different model of the Scheuch-Schlepper with lifting arms was later chosen as the final solution.
Source: "Messerschmitt 163 - Un avion trop loin" by Alfred Price and Jeffrey Ethell, published in "Le Fana de l'Aviation', February 1997 issue.