tag:blogger.com,1999:blog-3218524178230712938.post7862649908914972805..comments2024-03-26T10:21:28.283-07:00Comments on modeling the SP: Handling ice on ice decks, Part 3: icingTony Thompsonhttp://www.blogger.com/profile/11593061828601275378noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-3218524178230712938.post-68778178013652803182019-08-28T10:38:29.925-07:002019-08-28T10:38:29.925-07:00Yes, I'd agree that the white ice may be a lit...Yes, I'd agree that the white ice may be a little softer, but the far bigger factor is temperature. We are used to "temperate ice," not too far below freezing, but as temperature falls further, water ice becomes very hard indeed.<br />Tony ThompsonTony Thompsonhttps://www.blogger.com/profile/11593061828601275378noreply@blogger.comtag:blogger.com,1999:blog-3218524178230712938.post-91550839197320461582019-08-24T18:54:58.677-07:002019-08-24T18:54:58.677-07:00LOL. The latching bar is attached to a zee shaped ...LOL. The latching bar is attached to a zee shaped tab with an eye-bolt or u-bolt. The zee shape tab is attached to the roof edge with 2 rivits. 1 of which also attaches the loop, so I guess you could say the loop attaches the latch bar to the roof. The question was why the loop, which hasn't been answered. See Dick Harley's site for some better pictures of a R-40-10.Tom Christensenhttps://www.blogger.com/profile/16017900620598411798noreply@blogger.comtag:blogger.com,1999:blog-3218524178230712938.post-24112918313179495312019-08-21T11:48:12.475-07:002019-08-21T11:48:12.475-07:00That's the loop to which the latching bar of t...That's the loop to which the latching bar of the ice hatch cover is attached. The car you see is a Class R-40-10, and I believe this was the last class to have these (though I haven't checked carefully).<br />Tony ThompsonTony Thompsonhttps://www.blogger.com/profile/11593061828601275378noreply@blogger.comtag:blogger.com,1999:blog-3218524178230712938.post-13891865788140725452019-08-20T19:00:54.969-07:002019-08-20T19:00:54.969-07:00In the second PFE photo with the chopper on the ha...In the second PFE photo with the chopper on the hatch plug. Notice the looped "grab iron" by hatch support. Is that to prevent the hatch support from fouling thr corner grab or hanging over the end by the brake wheel? What car classes were these on?Tom Christensenhttps://www.blogger.com/profile/16017900620598411798noreply@blogger.comtag:blogger.com,1999:blog-3218524178230712938.post-46601762036841040992019-08-20T09:54:25.187-07:002019-08-20T09:54:25.187-07:00Thanks Tony for all your great information through...Thanks Tony for all your great information throughout the years.<br />I suspect one advantage to the white ice over the clear ice, is that with all the air bubbles in the white ice also I believe called "soft" ice is that it should be able to be broken up easier than the rock hard clear ice. I'm curious if the water was flash frozen not only for speed of freezing the water but also because it was softer. Just a thought.<br />Take care.Duane Whitenoreply@blogger.comtag:blogger.com,1999:blog-3218524178230712938.post-2274135301517063362019-08-20T07:59:53.393-07:002019-08-20T07:59:53.393-07:00Thanks Tony. I think a few damp spots, with littl...Thanks Tony. I think a few damp spots, with little chunks of ice, will make a nice addition to my ice dock - when I build it "someday". Jeff Aleyhttps://www.blogger.com/profile/18261260319825210952noreply@blogger.comtag:blogger.com,1999:blog-3218524178230712938.post-25914358934133622192019-08-19T18:06:42.100-07:002019-08-19T18:06:42.100-07:00You're right, Jeff, and I would guess it depen...You're right, Jeff, and I would guess it depends on whether a photo was taken at the beginning of icing, or when it was well along. Obviously ice decks in most of California would experience considerable warmth in summer, so a wet deck could also dry quickly. I would hesitate to model a really wet deck unless I was depicting the re-icing of mainline trains, which not only was a big job but would happen over and over in 24 hours.<br />Tony ThompsonTony Thompsonhttps://www.blogger.com/profile/11593061828601275378noreply@blogger.comtag:blogger.com,1999:blog-3218524178230712938.post-88867437458624547282019-08-19T15:43:17.650-07:002019-08-19T15:43:17.650-07:00It is interesting to me that some of the photos sh...It is interesting to me that some of the photos show that the ice deck is wet (obviously due to melting ice), but others do not. I would have expected all the ice decks to be wet (something to be modeled).<br />Jeff Aleyhttps://www.blogger.com/profile/18261260319825210952noreply@blogger.com