Which Motor Pinion ????

Which Motor Pinion ????
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Which Motor Pinion ???? - 7/6/2006 1:01:14 AM

wcc963

Posts: 185
Joined: 5/7/2006
From: coconut creek, FL, USA
Status: offline

I was wondering which motor pinion will give the highest head speed. im looking to make his very aerobatic.

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RE: Which Motor Pinion ???? - 7/6/2006 1:42:45 AM

Posts: 4168
Joined: 5/3/2006
From: Greenwood, IN, USA
Status: offline

wcc963,

Below are the recommended configurations for motor (tooth size), battery and blade type, by Hobby Zone.

It's something you have to play around with to get the best configuration for your needs.

I fly the 8 tooth with flat blades, it gives me around 20 minutes of flight time, using a 1200 mAh battery. I don't do aerobatics or 3d stuff. Just cruise around the back 40.

Hope this helps,

Dave / Choppersrule

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Main Motor, Pinion, Heat Sink, Battery and Main Blade Configurations

When using the recommended main motor, pinion, heat sink and battery configurations we have experienced very good main motor life (better than any other models in this class). We have main motors in stock and Aerobatic Enhancement Kit equipped models with more than 100 flights that continue to perform very well.

For those who may be experiencing premature main motor wear, it is likely the result of excessive current draw causing damage to the motor rather than brush wear. Excessive current draw can be the result of using the wrong main motor, pinion, heat sink and battery configurations, improper gear mesh or constant power on blade strikes and crashes (shock damage). For these reasons you MUST follow the power system configurations recommended to achieve expected motor life. These configurations are:

EFLH1110A - 370 Main Motor with 8-Tooth Pinion:

For use with 3-cell Li-Po packs and flat bottom main blades. This is the most efficient setup for long duration hovering and basic sport flying when using 3-cell Li-Po packs. Must use a heat sink (EFLH1132).

EFLH1110B - 370 Main Motor with 9-Tooth Pinion (Included with Aerobatic Enhancement Kit [EFLH1168]):

For use with 3-cell Li-Po packs and flat bottom main blades for hovering and sport flying, with less duration than when using the main motor with 8-tooth pinion. Also for use with 3-cell Li-Po packs and symmetrical main blades for sport flying and aerobatics. Must use a heat sink (EFLH1132, also included with Aerobatic Enhancement Kit).

We suggest 860–900mAh packs for all-out aerobatics with durations up to 15 minutes and 1200–1320mAh packs for basic aerobatics and longer durations up to 25 minutes or more.

EFLH1110C - 370 Main Motor with 10-Tooth Pinion (Included with the stock BCP heli right out of the box):

For use with 8-cell Ni-MH packs and flat bottom main blades for hovering and sport flying. This is the most efficient setup for long duration hovering and basic sport flying when using 8-cell Ni-MH packs. DO NOT USE THIS MOTOR AND 10-TOOTH PINION WITH 3-CELL LI-PO PACKS AS IT WILL DRAW EXCESSIVE CURRENT RESULTING IN SHORT MOTOR LIFE, EXCESSIVE RF NOISE POTENTIALLY CAUSING RADIO “GLITCHES” AND DAMAGE TO THE 4-IN-1 ON BRIEF BLADE STRIKES OR EVEN DURING FLIGHT. Use of a heat sink is optional (EFLH1132), though it can help to improve duration and motor life.

EFLH1110D - 370 Main Motor with 11-Tooth Pinion:

For use with 2-cell Li-Po packs and flat bottom main blades for hovering and sport flying. We suggest packs from 860–1320mAh. DO NOT USE THIS MOTOR AND 11-TOOTH PINION WITH 3-CELL LI-PO PACKS AS IT WILL DRAW EXCESSIVE CURRENT RESULTING IN SHORT MOTOR LIFE, EXCESSIVE RF NOISE POTENTIALLY CAUSING RADIO “GLITCHES” AND DAMAGE TO THE 4-IN-1 ON BRIEF BLADE STRIKES OR EVEN DURING FLIGHT. Use of a heat sink is optional (EFLH1132), though it can help to improve duration and motor life.

Also, we find it is best to allow the main motor to cool to near ambient temperature between flights.

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Left skid low....

(in reply to wcc963)

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