Tramway Goats
Hmmm: That Don't Look Right.
Several compounded errors resulted in this mishap.
Insufficient spikes to prevent movement of the Checkrail.
Use of a lesser weight rail for the Checkrail set lower than the running rail.
Lightly loaded Flattop was being propelled at moderate speed(moderate speed here is less than a walking pace).
This Turnout has seen many movements across it in this state(Checkrail secured incorrectly) since insertion back in 2017 and has given no trouble until now. I had been watching this placement for sometime given the propensity of the Motor to shift the light track laterally. I had thought the Motor would have been the first to find the fault here.
However after noting a flange scrape mark along the top of the Checkrail it was discovered a small twig had fallen across the running rail ahead of the leading end of the Checkrail, that led to lifting the inside wheel up and on to the Checkrail, allowing the opposite wheel to climb the Frog and thence off onto the ground.
The Motor(had it been leading) would have just crushed the twig first with little lifting of the wheel.
Hmmm: That Don't Look Right.
Several compounded errors resulted in this mishap.
Insufficient spikes to prevent movement of the Checkrail.
Use of a lesser weight rail for the Checkrail set lower than the running rail.
Lightly loaded Flattop was being propelled at moderate speed(moderate speed here is less than a walking pace).
This Turnout has seen many movements across it in this state(Checkrail secured incorrectly) since insertion back in 2017 and has given no trouble until now. I had been watching this placement for sometime given the propensity of the Motor to shift the light track laterally. I had thought the Motor would have been the first to find the fault here.
However after noting a flange scrape mark along the top of the Checkrail it was discovered a small twig had fallen across the running rail ahead of the leading end of the Checkrail, that led to lifting the inside wheel up and on to the Checkrail, allowing the opposite wheel to climb the Frog and thence off onto the ground.
The Motor(had it been leading) would have just crushed the twig first with little lifting of the wheel.