Was looking for something else re the USCG and ran across this 214 page Tower Manual dated 2002. Glanced through it, in particular was interested in the pages about 'riding the guys'!! Had not seen this referenced before although may certainly have been. Looks pretty complete. https://media.defense.gov/2017/Mar/29/2001723584/-1/-1/0/CIM_11000_4A.PDF Don W7WLL