[TowerTalk] US Tower 72 ft crank up grinds to a standstill

[Ron Freeman]

I had an old X Brace HDX589 that had a removable X Brace section for rotor placement which allowed easy installation of the Orion 2800 or about anything else.  Installation of the Orion 2800 in my much newer  W Brace HDX589 was difficult (but doable) even on the ground with the tower tipped over.  Turns a DB36 on a tilt plate with an 80/160 inverted vee.  

Ron K5MM


Sent from my iPad

> On May 26, 2020, at 5:27 PM, Grant Saviers <grants2 at pacbell.net> wrote:
> 
> Concur.  Took too many tries to get an Orion 2800 into my HDX 589 without contacting the cross bracing on the way up.  It looks symmetric but it is not.  Turns a DB36 & 86' dipole.
> 
> My Yaesu 2800 did fit w/o difficulty IIRC in another 589.  Turns a 4L steppir, at lot less mass and windload than a DB36.
> 
> Grant KZ1W
> 
>> On 5/26/2020 14:46, Richard (Rick) Karlquist wrote:
>> AFAIK, the M2/Orion is the only rotator that can
>> fit within a UST #4 section AND also has the
>> strength to turn a DB-36.  It is entirely possible
>> to fool yourself and mount a rotator into a tower
>> thinking it will work, only to have a problem
>> of interference during rotation or extention.
>> Been there, done that.
>> There is also a possibility that a cross brace
>> is bent inward enough to catch on the rotator.
>> My used HDX5106 at some time (not sure if before
>> or after I bought it) suffered a bent brace, limiting
>> its height to 70 feet.  I had to build a special jig
>> to bend it back out using a bottle jack.
>> Rick N6RK
>>> On 5/26/2020 2:31 PM, Alan Swinger wrote:
>>> To be more specific . . . my former Ham IV motors (too weak for my 4 EL Stepir) and my current Yaesu G-2800 both fit the TX-472 rotor mounting area w/o interference in crank-up/down. However, for example, a Hy Gain Tail Twister will not fit and allow full crankup/down of the tower. So, what rotator are you using? - Alan K9MBQ
>>> 
>>> 
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