Q: How do Tightlock couplers work? — Thor Clemens A: Longtime staff member Jim Hediger provided an explanation of the Type H, or Tightlock, coupler in a sidebar that appeared with his article “HO knuckle coupler guide” in the November 2007 Model Railroader. He wrote, “The need to reduce slack and improve passenger train safety […]
How do Tightlock couplers work?
