Another Chinook derivative, the Model 167 was substantially further from the original. It was larger and had an additional turboshaft engines… and moved all three of them forward, *presumably* for balance reasons. This was from the era when it seemed like a good idea to operate commercial helicopter “buses” from rooftop heliports in major cities, generally to shuttle passengers either from one city to another nearby one, or from the heart of an urban area to an outlying airport. It’s a little difficult to be sure, but it looks like the Model 167 had retractable landing gear.