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Other › My Trex 450XL CCPM Build Thread - Few More ?
11-13-2005 07:29 PM  12 years agoPost 21
theo2076

rrApprentice

Westfield, IN -USA

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How do I tell the kv rating of my motor?

Anyone know what the efficieny of the Astro 020 is?

Thanks!

Specs:
Motor 803-T-REX
Winding 4 turns #19
RPM/volt 3330 rpm/v
Resistance 0.049 ohms
No load current 900 ma
Rotor Magnets Sm Cobalt
Bearings Ball Bearings
Motor Dia 0.98 inches
Length 1.75 inches
Weight 2.5 oz
Motor shaft 1/8 inch dia
Mounting screws 2-440
Screw Spacing 5/8 inch
Control Type Sensorless
Connectors Astro
Servo Connector Universal
Nimh battery 8 cells
Lithium 3 cells
Maximum Power 300 watt

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11-13-2005 07:38 PM  12 years agoPost 22
Tmaster

rrKey Veteran

TX

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motor Kv = 3330 rpm/v

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11-13-2005 08:17 PM  12 years agoPost 23
theo2076

rrApprentice

Westfield, IN -USA

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Cool thanks! Going to go for the 11 tooth to start. Figuring 80% efficieny.

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11-13-2005 08:21 PM  12 years agoPost 24
theo2076

rrApprentice

Westfield, IN -USA

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What are your guys thoughts on where to mount the Rx and the battery?

The TP 2100 packs seem rather long, but looks like I need the weight in the front.

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11-14-2005 02:15 AM  12 years agoPost 25
Ozydego

rrKey Veteran

Westerville, Ohio

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you will need weight in the front, some mount it diagonally under where the windshield sits, others mount it to the bottom of the frame sticking straight out. Some put their Rx up front, but I personally like it nestled under the gyro mount taped to the side with double sided foam tape for dampening

But Honey, I can't live with just stock.....

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