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Author Topic: Supercapacitor FF flight help: basics, materials, plans  (Read 388 times)
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« on: January 21, 2018, 09:59:30 PM »

Hi all!
I am from India and work with kids on DIY science. I have started learning about free flight recently. I came to know about supercapacitor powered versions and felt that it would simple and not too expensive.

The material has to be sourced from China, but obviously the quality can be unreliable. Since delivery times are long, from my initial research and generous guidance from Jon (Yak 52) about FET timer, I ordered 716 motors with 45mm prop, 716 motor with gearboxed 137 prop (ratio unknown..seller didnt know too!).
716 with 45mm props: http://s.aliexpress.com/uqmymIvu
716 with gearbox prop: http://s.aliexpress.com/zqIjummI

I also ordered 2.7V 10F supercaps:

I wanted to know if rhese are ok.
Also if the motor quality is not good and I have to reorder from a different seller, or if the thrust for whatever models I design is not sufficient, then should I order 8520 with 66mm props? Will they be ok for these supercaps or too much?

8520: http://s.aliexpress.com/BN3yMJbU
66mm prop: https://m.banggood.com/Eachine-66mm-ABS-Blade-Propeller-Prop-for-8520-1020-Coreless-Motor-QX95-QX105-Micro-FPV-Quadcopter-p-1122332.html?rmmds=shopcart

Any other suggestion about supplies?

The designs I had in mind were very simple foam plate and straw gliders (as given in Ideas-Inspire by Bill Kuhl) or other designs that are simple to construct and trim and can be built with local materials. The aim is not to be a pro (myself or the kids), but to learn enough to enjoy and initiate ourselves, and have a simple but satisfying beginners' package (alongbwith othee models like foam walkalong gliders, foam plate HLG or simple rubber powered models).  Coverting simple HLG to these supercap powered would be great, if that can be done.
Balsa is not available cheaply or locally, so that will not be used. Bamboo skewers or lighter sticks (like those used in rockets in firewroks here) will be used. The other material would be foam plates (closed cell EPS?): I have 1mm, 2mm and 3mm available (1mm looks too thin but I could try). We also have popsicle sticks and kite paper (I guess it is equivalent to tissue paper).

So what are the designs/plans that I can make? Are there good instructions for them on some page or forum, like EndlessLift? Any pics, plans, material info of your designs would be very helpful too!

Any other suggestions about design or anything else?

Thanks!  Smiley
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