View Full Version : Prerotor Tach information
03-08-2009, 09:22 PM
I have a pulse coil that I would like to try for the trigger for my rotor tach. Question is what tachometer are recommend for this type setup and why?
I think I have heard of a Red Loin. Does that sound right?
03-09-2009, 12:01 PM
Mark, The Red Lion digital tachometer works with a impulse coil. On my set-up it counts the 108 teeth of the ring gear for high accuracy. The unit runs off of a small internal battery.
I don't know anything about "red loins" sounds like a rash, social disease or a cut of meat from the butcher shop.
Traveling through Rawlins, Wyoming once I saw that someone had re-arranged a large sign, high up on a mountainside, from Rawlins to Raw loins.
03-09-2009, 12:55 PM
Tom, all of those sound either painful or ready to put on the BBQ.
03-09-2009, 01:57 PM
I use a tach from sportflying.com with a gear tooth counter. I like this setup much better than the tachs that rely on magnets. The rpms are instantly stable and responsive.
From the web site “The Rotor-1 dual rotor / engine tachometer is a 3 1/8” instrument providing two universal RPM inputs that is primarily intended to measure rotor and engine RPM. Typical uses are rotor / engine RPM displays for helicopters and gyroplanes.”
Link to the small instruments
03-09-2009, 07:28 PM
I have not see your post lately. Thanks for responding. \Expensive but it does a lot of extra functions
Thanks as well. I like your dry Witt. I got on finger ahead of the other. I really thought those were funny . I also got your pictures of the Continental prerotor set up yesterday
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