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Sounds like you have your tower planned well!

I would go with sched 80 on the mast and use a structural grade aluminum. Better to go as strong as possible with the set-up your doing. 2 inch diameter is what I would use.

I didn't see a thrust bearing mentioned, definitely a must with 2 antennas on a rotor. The used tower you mentioned may have one already.

If not, get a bearing plate that mounts on top of the tower and secure the bearing to the plate.

Good luck with your project and post some pics for us to see!

[QUOTE="fourstringburn, post: 813475, member: 2920"] Sounds like you have your tower planned well! I would go with sched 80 on the mast and use a structural grade aluminum. Better to go as strong as possible with the set-up your doing. 2 inch diameter is what I would use. I didn't see a thrust bearing mentioned, definitely a must with 2 antennas on a rotor. The used tower you mentioned may have one already. If not, get a bearing plate that mounts on top of the tower and secure the bearing to the plate. Good luck with your project and post some pics for us to see! [/QUOTE]

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