Terry, Most US clubs require safety chains on all cars with knuckle couplers when pulling passengers just in case something lets go. That is interesting because you almost never hear of a prototype knuckle coupler coming loose although I can remember the GM&O broke a few of them when pulling 150 car trains through the Mississippi delta country. That was in the days before roller bearings on freight cars so they got quite a jolt when starting off from a standstill especially when going up grade. A lot of our club passenger/rider cars at Mid-South are articulated with only one bogie between each car and those are centre seat with solid draw bars. Jesse > the knuckle couplers are illegal for passenger carrying here > > > > Ummm! Let me check---only thing I have is that IBLS > > standards have the coupler height as being a nominal > > 4.38" in 1.5 scale measured from the center of the > > coupler to the top of the rail. I think that they are > > referring to the "Knuckle(?) type couplers as used in > > USA. > > > > Al Messer > > > > > > --- alanjstepney <alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> > > wrote: > > > > > It seems that theree is no universal, or even > > > generally agreed, standard for > > > the couplings between loco (tender) and driving > > > trolley, and trolley and > > > passenger cars. > > > > > > The most common one that I have seen is the flat > > > bar, with pin dropping in > > > hole in bar and into brackets fixed to each vehicle. > > > However, the size of bar and pin seems to vary. > > > > > > Has anyone any information on couplings? > > > What does your club use? > > > > > > What is used in other countries? > > > > > > > > > alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > > > > > > www.alanstepney.info > > > Model Engineering, Steam Engine, and Railway > > > technical pages. > > > > > > MODEL ENGINEERING DISCUSSION LIST. > > > > > > To UNSUBSCRIBE from this list, send a blank email > > > to, > > > modeleng-request@xxxxxxxxxxxxx with the word > > > "unsubscribe" in the subject line. > > > > > > > > > > > > > __________________________________ > > Do you Yahoo!? > > Meet the all-new My Yahoo! - Try it today! > > http://my.yahoo.com > > > > > > MODEL ENGINEERING DISCUSSION LIST. > > > > To UNSUBSCRIBE from this list, send a blank email to, > > modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject > line. > > > > MODEL ENGINEERING DISCUSSION LIST. > > To UNSUBSCRIBE from this list, send a blank email to, > modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.