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Post  Darren19 Sun Apr 21, 2013 2:58 am

What is the esiest way to accuratly tch the rpm of cox engines? There a numerous models but what one will really work well and cost the least? Some are laser and other seem tombe needed to be connected to the engine. What would be the best one?
Thanks!!
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Post  RknRusty Sun Apr 21, 2013 6:58 am

The laser tachs require a reflective sticker on the prop that screws with the balance, so I would not recommend those. The ones that look through the prop in daylight are the best. Inside the shop, I lower the lights and shine a strong flashlight beam through the prop at the sensor. AC lighting will give a false reading, and I've seen LED flashlights screw with them too. These inexpensive little tachs work great:

Tachometer for cox engines Images?q=tbn:ANd9GcS8KZ7ufu8W4jEJYsE8rckBj_zO0uuFaH10r10gO9Boh0uON4WCyA

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Post  microflitedude Sun Apr 21, 2013 7:07 am

I use this one. Tracks up to a 9 blade prop and holds max RPM.

Only $10

http://www.hobbyking.com/hobbyking/store/__10783__Turnigy_Multi_Blade_Micro_Tachometer.html
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Post  Kim Sun Apr 21, 2013 7:34 am

I've got the two above and this Glo Bee tach...they all seem to register pretty close together. I've had the Glo Bee for a LONG time, and it's still ticking. It is sort of my favorite because of that I guess, and that it's also easy to hang on to with castored-up fingers!

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Post  anm2 Sun Apr 21, 2013 7:46 am

I use a globee tach and it works great. I am sure the cheaper ones work just as well, but the Globee isn't that expensive. Andy
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Post  dinsdale Thu May 02, 2013 7:25 am

microflitedude wrote:I use this one. Tracks up to a 9 blade prop and holds max RPM.

Only $10

http://www.hobbyking.com/hobbyking/store/__10783__Turnigy_Multi_Blade_Micro_Tachometer.html
That's the one I have - works a-treat Smile .
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Post  jorigger Thu Jul 18, 2013 5:11 am

[quote="Darren19"]What is the esiest way to accuratly tch the rpm of cox engines? There a numerous models but what one will really work well and cost the least? Some are laser and other seem tombe needed to be connected to the engine. What would be the best one?
Thanks!!

Hi, i want buy one tachometer.
Please, let me know that type and Brand you advise ?
I have to see this of Glo Bee. Is good ?
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