As I rode the 24 year old,1418 foot long,367' vertical(whoopdy doo,it's all we have out here) Riblet triple at Caberfae Sat.,I noticed a distinct swinging and swaying in a roughly couple hundred foot section after loading.There was one Do Not Swing Chairs sign right in that area where this was taking place the most,the chairs swayed within 6 inches of hitting the tower and went up and down a couple feet even though the lift was at most 25% of loaded capacity.An hour later there were very few people at all on the lift and it didn't swing,sway or jounce at all.It also did not stop at all during the rides so that was no issue.
For you knowledgable lift nuts,is this a common situation on certain lifts at the loading area and the first few hundred feet, given the amount of people on the lift,or inherit in certain types of lifts?The wind was next to nil and the 9 yr newer CTEC quad had no such issues with no warning sign with similar amount of skiers on the lift.It's just strange there was a amber colored warning sign in the area where this took place,design flaws?Ideas? __________
Can be a whole mess of things, including but not limited to loading area (bullwheel load, post bullwheel load, were they loading on a sheave train), tensioning, wind, sheave condition, tower spacing, crossarm size (how close the chair was to hitting the tower), etc. The bigger/heavier the chair, the less likely it is to rock like that.