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HelicopterScale Model RC Helicopters › Notar Head Speed?
03-10-2003 11:06 PM  14 years agoPost 1
cwm

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Las Vegas NV

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Hey Joe can you tell me what the Head speed should be on my Notar with the two bladed head?

Just Fly It!!!

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03-11-2003 12:09 AM  14 years agoPost 2
Safe_Cracker

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Chicago, IL

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FWIW.

A buddy of mine had his set at 1380 rpm..Goodluck..

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03-11-2003 02:31 PM  14 years agoPost 3
Notar

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Taxachussetts

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On the 520 with the stock two blade head, 1350-1400 is real good after the motor is broken in. You will not achieve this until the motor has about a gallon of fuel through it. On the 900, it is the same. All reference to motor is the Webra 91 on 10:1 gear ratio.
Joe

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03-11-2003 05:04 PM  14 years agoPost 4
cwm

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Las Vegas NV

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Thanks Guys. I ran 2 gallons of fuel through the motor on the test stand.
Joe I put the 91 in it but I did not change the gear ratio I am running what ever came with it , is this a prob?
I have hovered 2 tanks through it the last flight head speed was about 1350 to 1370 it seemed to handle better at the higher head speed.
This bird is a handfull to fly but I think it will get better as I get it all figured out!

Just Fly It!!!

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03-11-2003 05:35 PM  14 years agoPost 5
Peter Wales

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Orlando Fl

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Look at it this way. It always takes the same amount of torque to hover it, whether you are running 5 degrees at 1200 or 3 degrees at 1400 (or whatever) the torque is the same.

You need air pressure to counter that torque through the tail. The faster the engine is running the more air you get through the tail so the better the tail will feel. I am running 1400 on mine with a Webra 75 and its nice.

Peter Wales
http://scalehelicopters.org

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03-11-2003 06:17 PM  14 years agoPost 6
Notar

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Taxachussetts

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If you got the two blade version, its 10:1
Joe

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HelicopterScale Model RC Helicopters › Notar Head Speed?
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