Description:

Tube b , tube "b", 20 feet long. Used to fabricate a mast for low-impact resis-tance structures for lighting supportsfor airport approach lighting systems, models alsf-2 .

Special Features:

Tube "b", 20 feet long. Used to fabricate a mast for low-impact resis-tance structures for lighting supportsfor airport approach lighting systems, models alsf-2 and malsr.Tube includes a tube splice bonded joint protruding 4 inches from one end, splice joint 6.00 inch od has hoop wound ring 7-1/4inch od by 1-1/2 inch wide 60 inch from splice joint end. Over-all dim. 6.000 inch plus 0.005 or minus 0.000 inch id; 6.250 inch plus or minus 0.031 inch od; 20 ft 4 in long. Helix ring joints spaced at 42.00 inch intervals for frangible joint. Fiber glass material. Per faa spec. Faa-e- 2702; item 13, drwg d-6155-1, alsf-2 and malsr lir structures, structural configurations

Properties: