A ladder of fixed length and requires a means of support. The sidepieces (rails) may be tapered or flared near the bottom.
NSN 5895-00-280-7528
NSN 6610-01-044-4740
NSN 5999-00-289-1472
NSN 5835-01-026-0670
NSN 5930-00-255-3785
NSN 5999-00-171-8858
NSN 6320-01-425-1417
NSN 6135-01-247-5660
NSN 6645-00-192-1152
NSN 6645-01-245-8390
NSN 5835-00-813-1724
NSN 6650-01-369-1650