View single post by Si.
 Posted: Tue Dec 19th, 2017 10:45 pm
PMQuoteReplyFull Topic
Si.



Joined: Thu Feb 23rd, 2012
Location: London
Posts: 4432
Status: 
Offline
" Go and read paragraph 5 of RP25 out loud.
Then, if you understand just a bit of dynamics,
give a reason why that small centering force can compensate the drag of a e.g. Standard H0 coupler "


Oh well looks like the N.M.R.A. don't know their monkey-railroading from mechanics. :dope:

I've mailed them with your corrected spec. Helmut. ;)



- - - - - - -



Other than that ...

... it seems to ME that the RP25 coning in small-scales is actually VERY important indeed !

I haven't ever noticed any "drag" from a properly installed HO Kadee.






:brill:



Si.



There is of course somewhat of a "dynamic" difference ...

... between a speeding express train of 40' boxcars ...

... and a clunkin' funkin' On30 Porter with a few 4-wheelers ! :slow:



____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
Close Window