Generally, 200 feet is the limit for unlighted towers. Any structure that extends more than 200 feet above ground level will require an Aeronautical Study to determine if it is a hazard to air navigation. However, there are instances where a shorter structure poses a hazard, possibly due to its proximity to an airport or to a traffic pattern. In my case, the FAA ruled that obstruction lighting (but not painting) was required on a 180-foot tall rocket launch gantry on the military base where I work, due to the likelihood that helicopters would be flying in that area prior to a launch.
The FAA has published an Advisory Circular, AC-70/7460-1K, dated February 2007, which is available here: http://tinyurl.com/2odbez 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of texasexpediter Sent: Sunday, June 17, 2007 7:04 AM To: [email protected] Subject: [Repeater-Builder] Re: Would You..... tower height question What is the maximum height a tower can be without falling under all the lighting, painting etc. regulations?

