RCU Forums - View Single Post - Current 2m pattern planes are really ugly
Old 09-13-2022 | 06:01 AM
  #77  
big_G
 
Joined: Feb 2005
Posts: 432
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From: Hutto, TX
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Originally Posted by Joseph Frost
How do you measure the prop RPMs with counter rotating units in Pattern models? What happens when you point hand held meter agains it??? Just curious?
BTW, persevarence paid off, after some 50 emails I sent all over the planet I got 2 brand new ones I was after, LOL.
On the Adverun style (belt and gear), the rpm can be measured by removing one prop and any optical rpm meter will work. On Brenner V4 (planetary drive), you will need an rpm module on the motor and calculate the rpm using the known gear reduction ratio. These are nice to know if you are setting up a governor style esc, such as the D3Motors D3.


Gary