[TowerTalk] rotor plate bolt hole patterns
Wed, 16 Feb 2000 05:03:54 -0600
Not the same pattern. I went from tailtwister to Yaesu 1000 and now on to a
A "BIG BOY"
Rick NK 9G
From: K7LXC@aol.com <K7LXC@aol.com>
To: firstname.lastname@example.org <email@example.com>; firstname.lastname@example.org
Date: Tuesday, February 15, 2000 4:06 AM
Subject: Re: [TowerTalk] rotor plate bolt hole patterns
>In a message dated 02/14/2000 7:03:48 AM Pacific Standard Time,
>> Can anyone tell me if the rotor plate bolt hole pattern for the Yaesu
>> series of rotors (800-1000 series) is the same as for the HyGain T2X
> They are both 4-hole patterns but the Yaesu has a little bigger
>Rohn rotor shelves have slotted bolt holes to accomodate both. Your rotor
>plate may be slotted too. How about asking the manufacturer if it'll fit
>> Would I have to shim a 1 3/4 inch mast to properly center it
>> for a TTwister or Yaesu rotor to smoothly turn a full 360?
> Depends on whether you will be using a thrust bearing or not. With no
>thrust bearing, you can just let the mast turn eccentrically in the top
>if that's your scenario.
>> I am going to use the rotor on a rotor base for a US Tower MA550MDP.
> Is the 1-3/4" the mast drive at the bottom of the tower? If so, you'll
>probably need to shim it if you want to use a Hy-Gain rotator. I have seen
>very few shim schemes that worked; generally they slip. You might want to
>talk to a local machine shop and come up with a reducer scenario that'll
>better. Or go with a Yaesu rotor since you don't have to shim it.
>Cheers, Steve K7LXC
>FAQ on WWW: http://www.contesting.com/towertalkfaq.html
>Administrative requests: towertalk-REQUEST@contesting.com
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Administrative requests: towertalk-REQUEST@contesting.com