[TowerTalk] Tailtwister not turning, still

[Jim Hargrave]

   >Although I saw some one say they run at
   >several thousand RPM my guess
   >would be closer to 680 to 800.
   >The easy was it to count the
   >number of
   >poles and do the math.

Roger,

 I was the one that made that statement. My reference was to the Prop Pitch
drive motor, not the Tailtwister. Apples and oranges. Following is the
reference:

   >I am getting ready to "retire" an overloaded Tailtwister
   >rotator with a "small" prop pitch motor (9,576:1 reduction
   >ratio) and was wondering about a couple of details in
   >regards to putting it in service.

Now lets do the math. If the output shaft turns @ 1 RPM, then I submit that
the motor better be turning @ 9,576 RPM. Bear in mind this is a series DC
motor and basically the rpm is limited by inertia and friction, including
the target load.

   * 73's Jim W5IFP *