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Old May 23, 2004, 08:16 PM
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bselman's Avatar
sw missouri
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46 Gram Micro 3D with 7.7g Brushless Motor!

Gary Jones just finished up a test model for the new 7.2 gram prototype brushless he designed. The model weighs 46 grams RTF with a 2 cell 170 mahr pack. Intial testing shows more than 1.2:1 thrust to weight as it jumps out of his hand vertically. A giant thunderstorm has postponed the maidened.

Here are some pics
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Last edited by bselman; May 23, 2004 at 08:19 PM.
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Old May 23, 2004, 10:59 PM
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United States, VA, Clintwood
Joined Nov 2002
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That's pretty cool.
What kind of controller did he use?

Billy
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Old May 23, 2004, 11:30 PM
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New York, NY
Joined Dec 2000
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Is that "7.2 gram prototype brushless" destined for commercial production? What is the current draw on 2 cells?


Jun Nolasco
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Old May 24, 2004, 12:14 AM
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Murphy,NC
Joined Feb 2003
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I'd like to have a closer pic of the motor please !

Randy
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Old May 24, 2004, 06:26 AM
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sw missouri
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Gary and I are working towards commercial production of the motor. So for now we are not going to publish any closer views.

The BL controller is a CC Phoenix Micro 10 with the heatshring removed and smaller wires added. The receiver is the Garparin Penta.

The motor has a GWS 5x3 prop and draws about 1.6 amps off of a fresh charge and turns about 7500 rpm.

Bob
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Old May 24, 2004, 08:13 AM
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USA, FL, Fort Lauderdale
Joined Feb 2002
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Those are some ailerons, you know that if the roll rate catches up with the prop the plane will stop flying. Kidding asside, beautiful workmanship.

Dave
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Old May 24, 2004, 08:17 AM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
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Bob and Gary,
Nice job on the plane and motor. Can't wait to hear how the maiden flight goes. 2004 = the year of micro brushless motors.

Gordon
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Last edited by Gordon Johnson; May 24, 2004 at 08:19 AM.
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Old May 24, 2004, 08:27 AM
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sw missouri
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Big Ailerons?

Gary built a 14 inch span version of this plane (which has some influence from Jason Schulman's Exhila and others) and it flew very well on a dual M-20 drive and a 1 cell 250 mahr. It would harrier, rolling circles, etc. The controls were very nice with about 50% expo dialed in. But the power was not enough for prop hanging. This attempt should be able to prop hang!

Bob
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Old May 24, 2004, 08:33 AM
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Antwerp Deurne, Belgium
Joined Dec 1996
419 Posts
great work! I would love to have one for a 40gram full 3D capable Pixel micro heli...
Can hardly wait!

Alexander
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Old May 24, 2004, 08:54 AM
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Awsome!!!
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Old May 24, 2004, 10:00 AM
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sw missouri
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Mike,

You need to come to SMALL so you can wring this plane out for us!

Bob
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Old May 24, 2004, 10:12 AM
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My chances for making it to SMALL aren't looking so good
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Old May 24, 2004, 01:07 PM
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Antwerp Deurne, Belgium
Joined Dec 1996
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I can hardly wait to get one. For my still unsatified ambition: a full 3D capable 40gram (or so) Pixel heli. I have the Falcon servo's ready since half a year

Alexander
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Old May 24, 2004, 01:50 PM
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Farmington NM
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A 3D Pixel would be so cool. I have been thining about trying to build a 150gram aerobatic heli with a 14 gram outrunner I have built.
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Old May 24, 2004, 02:59 PM
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Palm Beach, FL
Joined Jan 2004
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Now I'm getting really interested Alex! How about a new thread with airframe photos/details? I'm currently flying a brushless Piccolo Pro and wring it out like one of my big birds
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