BSA provides the troop program feature guides as a resource for Boy Scout troops. A PLC can use these guides to plan a series of meetings and outings around a single theme. My post Troop Program Features for Meetings and Outings has more information about these guides.
The plans for the Engineering troop program feature can be found in Volume 1 of Troop Program Features from BSA:
Engineering covers a variety of fields as broad as all outdoors—or indoors, for that matter. Virtually everything we use in the course of a normal day has an engineer’s stamp on it. In Scouting, we specialize in “wilderness engineering”— the art of building useful things with rope and timber. Your Scouts will probably want to try their hand at it this month.
The focus of this program feature is on creating and building. Younger Scouts will work on knots, lashings, camp gadgets, and a few other requirements. Experienced Scouts will work on the Engineering Merit Badge. Other merit badges which fit this theme include Inventing, Digital Technology, Drafting, Electricity, and Electronics merit badges.
The big feature for the program theme is a campout where Scouts practice pioneering – the art and science of wilderness engineering.