[TowerTalk] Mast failures

[BRENT BAUM]

I currently have a 32 foot length of heavy top rail that is guyed at the top (3 guys). ALL it holds is a 20 meter dipole, and I wouldn't put any more on it. Even with guys it provides an entertaining dance in the wind.
 
K7MEI, Brent
> From: JimMiller at STL-OnLine.Net> To: towertalk at contesting.com> Date: Fri, 1 Jun 2007 21:27:31 -0500> Subject: [TowerTalk] Mast failures> > I was camping and carried a 21 ft toprail for a chainlink fence for my 10> elt (horiz + 10 vertical) 2 meter beam. I had it tied to the awning> supports near the front window on the motorhome and the bottom sitting on> the rotor attached to a board with nails extended into the ground to keep it> from twisting.> > You had to see this to get the full effect but one morning after a storm,> the toprail had bent in a gentle curve starting just above the top mounting> point to the tip being completely horizontal and the beam was pointing> STRAIGHT at the ground. The end was probably 3 or 4 ft clear of the ground.> It was absolutely hilarious. I doubt I will ever forget. Nothing was> damaged except the toprail.> > Unless you can take a joke and the cost of failure, do it the right way.> > 73, Jim> > ----- Original Message ----- > From: <K7LXC at aol.com>> To: <km1h at jeremy.mv.com>; <towertalk at contesting.com>; <Eroddy4366 at aol.com>> Sent: Friday, June 01, 2007 11:36 AM> Subject: Re: [TowerTalk] masts.> > > >> > In a message dated 6/1/2007 9:13:46 A.M. Pacific Daylight Time,> > km1h at jeremy.mv.com writes:> >> > > At a former QTH with less wind exposure I had a 20/15/10 stack of W2PV> > 4el> > monobanders on 20' of 2 3/8 OD galvanized cast pipe. Except for eating> > rotators (Daiwa and Create even using 2 thrust bearings) it survived just> > fine thru many northeasters, CAT 2 & 3 hurricanes and ice storms while on> > 100' of 25G.> > Im sure that there are many parts of the country that cast pipe would> fail> > but dont discount it altogether.> >> >> >> > In other words, you lucked out!> >> > Cheers,> > Steve K7LXC> > TOWER TECH> >> >> >> > ************************************** See what's free at> http://www.aol.com.> > _______________________________________________> >> >> >> > _______________________________________________> > TowerTalk mailing list> > TowerTalk at contesting.com> > http://lists.contesting.com/mailman/listinfo/towertalk> >> > _______________________________________________> > > > _______________________________________________> TowerTalk mailing list> TowerTalk at contesting.com> http://lists.contesting.com/mailman/listinfo/towertalk