[TowerTalk] Prop Pitch operating characteristics

[Bob]

Hi Norm,
This is Bob Schaefer K6OSM and I used a PP motor on a Hornet tri-band beam back in the late 50's. I will look in my files to see what I can find on these motors. I do recall that the elapsed time for a complete turn was close to a full minute. I live in Gardnerville and Kurt lived in the adjoining town of Minden, I never made personal contact with Kurt but exchanged info with him when I lived in Idaho. I still have four PP motors and will see if I can find anything that will help you.Bob K6OSM 
In a message dated 3/16/2024 10:29:49 PM Pacific Standard Time, npalex at bellsouth.net writes: 
Hopefully there are some TowerTalk participants that are using PropPitch rotor systems.  I am looking for some operating characteristics relating to supply voltage, currents and rotation speed (time to do 360*).  I have been a prop pitch user for many years and my 'go to' in the past on such questions would be Kurt K7NV now SK or Joel K2QVB also a SK. My prop pitch dates back to W0MLY Dick Mckercher, DXer of the 50's and 60' and creator of Antenna Mart products.  That is the background - Specifically I am look for the DC voltage at the 'controller' and the voltage underload at the PP motor.  What is the 'start-up' surge current and the steady state 'run' current.  Those using Kurt's Green Heron controller, results may be different as it supplies is PWM ramp up and down, but the 'run' levels will be "DC" and useful data.  Finally is there anyone who has the working knowledge of Prop Pitch assemblies, or maybe have access to the information that Kurt accumulated the could be made available us PropPitch users?Looking for some help --Norm W4QN |  | Virus-free.www.avast.com | _______________________________________________   _______________________________________________TowerTalk mailing listTowerTalk at contesting.comhttp://lists.contesting.com/mailman/listinfo/towertalk