Hello:

Looking at the Columbia Cascade & Western's helix on Page 82 of the current issue I wondered if anyone had ever used a helix to feed a vertical wall shelf of storage tracks? Each turn of the helix could serve a storage track on a shelf. Plus you could see all the cars in each train before your eyes. If you had room for two helixes there would be no backing out of the siding. Since there wouldn't be a yard ladder all the storage track would be the same length. In the photo their helix would serve 7 tracks and only use 4" from the wall.

Carl.