The brochure "Construction Plan Collection" for the journal "Steam & Hot Air" includes complete construction plans for no less than nine outstanding and tested models to replicate. The construction plan collection from our renowned authors is aimed at both beginners and professionals alike. Two of the plans come from Teofil Hoka: the double-acting steam engine with valve control and the steam turbine with reversing mechanism. Willi Aselmeyer presents his functional steam anchor winch in the construction plan collection. The plans for the functional mini manometer for self-construction and the vacuum engine VM 2-27 are designs by our long-time author Ernst-Arno Kruse. Peter Brockmann describes the construction of his Stirling engine based on a historical model. Additionally, the construction report of the hot air engine "Butterfly" by Axel Schilling includes all the necessary drawings for replication.