[TowerTalk] Telrex stack

[Pete Stark]

I have three Telrex beams.
A 10m313 10 meter, a 15m317 15 meter, and a 20m436 20 meter.
I do not have the stacking info for the christmas tree stack.
Am i wrong in assuming half boom length spacing of the beam above?
Or 6 1/2 feet between the 10 and 15 and 8 1/2 feet between the 15 and 20.
This will leave about 16 feet out of the tower.
The original order had over 19 feet of mast and used the telrex rotor
on a windmill type tower.  I have the rotor but not the tower.
Thanx.

K4OM-Pete Stark
Huntington, WV