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Dec 01, 2008, 11:07 AM
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#1 |
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Registered User
Join Date: Feb 2005
Location: St.Petersburg, Russia
Posts: 68
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225 mg so far, but gonna be lighter!
Wing span 71 mm
Length 70 mm Motor with gear-box 18 mg Propeller 25 x 15 mm 2 mg Receiver 13 mg LiPoly ? mAh 167 mg Airframe+actuator 18 mg Others 7 mg Total 225 mg |
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Dec 01, 2008, 11:12 AM
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#2 |
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Registered User
Join Date: Nov 2002
Location: Jackson, Michigan, United States
Posts: 1,386
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Holy crap
 !!! Thats very nice!!! Just how the heck can you make it lighter? You can't mold air into a plane  !!!Cheers, Greg 
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Dec 01, 2008, 11:49 AM
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#3 |
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The ceiling is the limit!
Join Date: Aug 2004
Location: South of England
Posts: 1,230
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Fantastic work Lad. Did you use a cut down lipo?
Alex |
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Dec 01, 2008, 12:11 PM
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#4 |
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Be afraid!
Join Date: Dec 2003
Location: Milano
Posts: 345
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You simply rule.
Best regards, Francesco |
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Dec 01, 2008, 12:49 PM
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#5 |
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Inciting Riots
Join Date: Dec 2006
Posts: 7,500
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There are a few milligrams of extra wire that could be removed, but that is about all I can see that can be removed. Maybe a different design on the motor or a different battery.
Looks great!. This does bring up the question of what is the lightest RC controlled plane? |
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Dec 01, 2008, 01:00 PM
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#6 |
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Printed Tissue Fanatic
Join Date: May 2001
Location: Boston, Mass
Posts: 5,514
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Lad,
Incredibly nice airframe. It's a very elegant combination of functionality and minimalist structure. And your motor, prop, and other hardware are very nice and light too. Excellent. I think you may have the lightest plane, possibly by a fair number of milligrams. Gordon |
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Dec 01, 2008, 06:09 PM
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#7 |
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Registered User
 
Join Date: May 2004
Location: Thousand Oaks, California
Posts: 289
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Congratulations, Lad! That is outstanding! And such an interesting design.
How about some details on flight times? And is that a re-built battery? Great work, --Martin |
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Dec 01, 2008, 06:49 PM
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#8 |
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WHAT'S NEXT?
Join Date: Mar 2008
Location: Melbourne-Australia
Posts: 976
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Genius!
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Dec 01, 2008, 07:23 PM
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#9 |
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Your ruler, in part...
Join Date: Mar 2005
Location: Albany, NY
Posts: 720
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My god Lad!
your component weights are inconceivable! please, more details (on everything)! and a video! amazing work... i can't believe it. how did you pull of a 13mg rx??? i'm assuming you are using a magnet from a quartz wrist watch in your motor? and how in the world did you cut down a li-po? and is it stable (no capacity reduction over time)? and what about flight times? and you can make it lighter? ...my god... slow down. seriously, amazing work... absolutely incredible. |
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Dec 01, 2008, 07:37 PM
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#10 |
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WHAT'S NEXT?
Join Date: Mar 2008
Location: Melbourne-Australia
Posts: 976
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Yeah look at the size of that BL motor would you
It looks to be slightly smaller than the Allegro BL Controller Chip! |
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Dec 01, 2008, 07:40 PM
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#11 |
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Registered User
Join Date: Jul 2005
Posts: 474
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outstanding. did you cut the lipo in half? inspirational work.
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Dec 01, 2008, 07:58 PM
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#12 |
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WHAT'S NEXT?
Join Date: Mar 2008
Location: Melbourne-Australia
Posts: 976
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Hey Lad, go for the Silicon Wire switch and you might save 0.005mg
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Dec 01, 2008, 09:01 PM
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#13 |
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I'm a registered user!!!
Join Date: Feb 2008
Posts: 520
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Why dont we see more of this micro models?
is the cost just to high or are people scared off by the time it takes to make one? where can i find cf that size? how much lighter can you get it? maybe 215 mg at the max? |
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Dec 01, 2008, 11:49 PM
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#14 |
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WHAT'S NEXT?
Join Date: Mar 2008
Location: Melbourne-Australia
Posts: 976
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Because at this size it is literally impossible to make!!!
Only the elite few can make this at home with an arsenal of tools... I'm not quite sure whether you understand the complexity of something of this size and weight. To give you an understanding, it is the weight of 1/10th of a Kleenex Tissue  Go on and weigh a tissue, i bet it weighs 2g.
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Dec 02, 2008, 02:09 AM
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#15 |
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Registered User
Join Date: Feb 2005
Location: St.Petersburg, Russia
Posts: 68
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Thank you all for the congratulations.
I cut 8.5 mAh li-poly rebuilt up to 273 mg in halves in argon and sealed it with alu foil. The battery was cut 6 days ago - no capacity reduction over time so far. In the picture you'll see the argon box. Motor 2 Magnets D 1mm L 0.5mm, rebuilt 2 Coils: wires D 0.02 , windings 220 , 72 ohms Gear-box 1 : 6.7 static thrust with prop d 25 x 15 0.14 gr current 24 mA |
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