After spending too much time climbing because of forgotten and dropped tools and hardware a more convenient scheme for working on tower mounted antennas was devised.

This modification of Rohn 25 is strictly prohibited by the manufacturer. The stationary tower is 28 feet high, the tilting tower is 60 feet. Careful attention is paid to safety when raising and lowering.

An 1800 lb two speed winch and heavy cable is used. The legs of the tilting tower have been internally reinforced with 3/4 inch pipe. The tilting tower is attached to the stationary tower with 1/4" by 2" aluminum angle which is doubled to form a "T". The angles are mounted on a 1/4" 6061 T6 aluminum plate. The pivots are made from 1/2" fine thread, stainless socket head cap screws. The plate is held to the stationary tower with 6 U-bolts and pipe cradles.

The tower is steadied from the wind by resting about 100 lbs of its weight on a 6 foot step ladder when lowered, the winch is then locked. For size reference, the 2 meter beam (antenna closest to the ground) is 21'6" long.

When raised and locked, the tower retains most of its original design strength.

It is still secure for safe climbing, here is a view of the house from the top

And another view looking north, the vertical antenna is part of the 10 meter dipole