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Old Oct 21, 2012, 06:53 AM
ror
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Peanuts-Wallnuts RC conversion

Hi guys,

Excuses my poor english but I'm from France.

I'd like to get you advice about my project. I want to fly a RC peanuts or wallnuts.
If peanut, plane will be 3 axis sport plane like ryan St-Sta, miles 18 ....
If wallnuts, plane will be a warbird, 3 axis and retractable gear like this one:

http://www.rcgroups.com/forums/showthread.php?t=1715999

My supplies are the next:

motor:
http://www.hobbyking.com/hobbyking/s...idProduct=9666

Rx: Rx32d
http://www.micronradiocontrol.co.uk/....html#dt_rx32d

Esc: Varbl1
http://www.microplanesolution.com/mps_000008.htm

Servo:
http://www.indoorflyer.co.uk/falcon-...ervo-575-p.asp

battery:
http://www.hobbyking.com/hobbyking/s...Trex_100_.html

My problem are the next:

for peanuts, I can't find a lot of kit. I found that:

miles 18
http://www.a2zcorp.us/store/ProductDetailNP.asp?Cguid={A19AADBD-BFF7-4659-AB1C-1CDCF976D13F}&ProductID=4304&Category=ModelKitsByB rand:Peck

Druine turbulent:
http://www.a2zcorp.us/store/ProductDetailNP.asp?Cguid={A19AADBD-BFF7-4659-AB1C-1CDCF976D13F}&ProductID=4305&Category=ModelKitsByB rand:Peck Polymers

Ryan St
http://www.easybuiltmodels.com/ff39.htm

no more !!

For wallnuts, I'd like to know if my motor is enough and if i have to move to 2s for the battery.


I'm waiting for your advices !

Thank you
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Old Oct 21, 2012, 10:16 AM
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United States, AZ, Yuma
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try this battery: http://www.allerc.com/hyperion-g3-cx...or-p-6007.html

hyperions 100 mah 1S. lighter than nano 160 mah, but should last longer.

not many kits, but look up walt mooney. lots of plans.
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Old Oct 21, 2012, 10:21 AM
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Toronto (Don Mills), Canada
Joined Dec 2002
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Some nice Peanut plans here:

http://peanut.scale.free.fr/index.htm


Pat MacKenzie
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Old Oct 21, 2012, 11:12 AM
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coriolan's Avatar
Canada, BC, Vancouver
Joined Sep 2006
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There is few kits for Peanut & Walnut scale but many plans around intended for indoor free flight. Most can be made r/c without problems! For the equipment its a bit more difficult, Peanut are mostly the domain of actuator control(even the Falcon "Fetmo" is too big for them).
You already know about MPS, but there is also the excellent MicroInvent line and off course Plantraco:
http://www.microinvent.com/mambo/index.php
http://www.microplanesolution.com/
http://www.atomicworkshop.co.uk/catalog/
http://www.microflight.be/fike-e
http://www.microflight.com/
For plans only there is many here too:
http://www.houseoffrog.co.uk/
http://www.outerzone.co.uk/index.asp
http://www.parmodels.com/
http://www.aeronutz.flyer.co.uk/
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Old Oct 21, 2012, 02:09 PM
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United States, MI, Temperance
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Last edited by Tim Wolff; Oct 21, 2012 at 06:50 PM.
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Old Oct 21, 2012, 03:06 PM
ror
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Ok, thank you guys for answering, but I knew almost all of these sites. So I understand, if I want to fly a peanuts, I have to take actuators instead servo ant take the hyperion too. For the motor, I think is good because I used it briefly on plane about 30gr, andhe flew well.

So if I have to take actuators, which one I've to take because I've been told that it was difficult to use and put in place.

Thank
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Old Oct 21, 2012, 03:38 PM
ror
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An other question:

Do servo falcon 0,8 Gr are enough for a Wallnut ? And, am I obliged to take 2S fo wallnut ? Because, there is this motor at micro plane solution Bl1 mps 43

http://www.microplanesolution.com/mps_000004.htm

is it good ?

thank
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Old Oct 21, 2012, 03:52 PM
"Unnecessary Necessity"
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Canada, BC, Vancouver
Joined Sep 2006
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Actuators aren't that difficult to install, just very fragile because of the small wires! They are the only choice when you get down to less than 10<15 grams planes on one cell(Lipo). Brushless motors are OK but for very small stuff brushed are actually better(geared 4mm coreless), another good source in Europe beside MPS is DIDEL in Switzerland:
http://www.didel.com/NewsF.html
And there is lot of info in the sticky on top of that page about the subject:
http://www.rcgroups.com/forums/showthread.php?t=84771
http://www.didel.com/vole/Vole.pdf
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Old Oct 21, 2012, 04:27 PM
ror
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thank

why coreless are better than brushless ? Can I get a good trhust with it, in order to do loop or somme aerobatics ?
20-22 Gr for peanut, is it to heavy ?
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Old Oct 21, 2012, 08:23 PM
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Southlake, TX
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Quote:
Originally Posted by ror View Post
thank

why coreless are better than brushless ? Can I get a good trhust with it, in order to do loop or somme aerobatics ?
20-22 Gr for peanut, is it to heavy ?
It's not the motors themselves, its the gearing. Small diameter motors make less torque than large diameter motors, but a small diameter motor, spinning at high RPM, can be geared to make more torque than a larger diameter, heavier motor.

If a brushless motor were geared, it would make more thrust for the same weight/power than brushed, but ungeared brushed is more efficient.

A 6mm Parkzone J-3 Cub motor/.gearbox wih a 4" prop is a very light/powerful setup for a 20-30g plane
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Old Oct 21, 2012, 10:27 PM
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plus, not many motorss below the 2 gram range. there is the AP-02 and the HXt 2 gram motor. and thats it, unless you 'roll your own'.

ive had coreless be more efficent than some of the BL motors i used. probly better made.
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Old Oct 21, 2012, 10:31 PM
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Canada, BC, Vancouver
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Gordon Johnson has some nice tests on his site for brushless and coreless motors, also some actuators test:
http://home.comcast.net/~gordon-johnson/home.htm
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Old Oct 22, 2012, 02:25 AM
ror
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Ok, thanks very much.

So I forget the brushless and will take a PZ motor. For the site of gordon johnson, I knew it, but I have forget to compare between brushless and coreless !!
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Old Oct 22, 2012, 11:12 AM
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burshless = more power, longer lasting.
coreless = cheaper, eaiser.

if your plane weighs more than 20 grams go brushless. (says the guy who flies brushed!)
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Old Oct 22, 2012, 11:48 AM
ror
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thanks,

I hope my plane will be under 20 Gr ! So what motor take because the J3 Parkzone is a 2 Gr motor. For that weight, I prefer take the AP02. Can you recomand me some motors plus gearboxe, less than 2 gr, and enough power for 13-15 Gr.
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