A ladder of fixed length and requires a means of support. The sidepieces (rails) may be tapered or flared near the bottom.
NSN 5920-00-003-5845
NSN 6685-01-327-8419
NSN 5945-01-540-5489
NSN 6620-01-652-2078
NSN 5855-01-379-3160
NSN 5999-00-243-2552
NSN 6105-01-494-3236
NSN 6650-00-382-6080
NSN 6110-01-427-6395
NSN 4140-01-550-8908
NSN 5960-01-582-6167
NSN 4140-01-361-5876