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It refers to a battery's cell configuration, series is how many cells (or parallel sets of cells), are wired in series. Higher number of cells in series increases the batteries voltage, you can test the voltage and know if it is 1S or just read on it. (if the batteries are 3.7v they are 1S)

Make sure the voltage is the same (1S, 2S or 3S S=series), and the amp supply should exceed the old battery (if it is bigger and the C rate is the equal to or greater than you are good).

Haha yeah, the gyrocopter ones have been around for a while.

Yeah, the shock would do them in quickly, probably just not scaleable. The concept it great for toy grade quads for those learning to fly.

Crash resistant, but it is a great design for smaller quads.

A device can only draw the voltage supplied, if you wire three light bulbs in parallel on 120 they will each get 120v (if you give them too high of voltage they will burn out) and what ever amps they require (if you have 5000 amps they will only use what they need). Let's say that you have...

Hahahaha

http://www.twitch.tv/blueskyrcfpv The link above goes to a twitch streamer that does live FPV flights, this is pretty cool as instead of watching a prerecorded video you can see what is actually happening and often communicate with the pilot (or more accurately his co-pilot haha). Best part...

Do calibrate your FCB on a level surface, you need to sync your ESCs, also check to see if it is an ESC problem or motor problem by swapping motors around. They are su

You might like this, it is hobby grade, but it only weighs 18g ! Now you just need to find where you can get some really tiny motors haha

Hahaha, I'll stick to racing. Though with a bit of thinking you could do this pretty easy haha.

Glad it helped hahaha.

Motors appear to be too small (too high KV) you probably want to go with some 800-1000 kv motors, if you already bought them, just be careful not to over prop them. Your problem sounds like it is with the FC. Take a look at this video, it is 1 of 7

Hahahaha.

You cut CF with an abrasive, and treat it like metal or masonry. But you need to make sure you have the proper PPE before attempting it as the fine particles won't do you any good. You make any fixed wing stuff from wood? hahaha

In a certification class now, I'll read your entire message when I get out haha. But yes KK board requires a Receiver and transmitter, you can simulate it with a Arduino, but the low range is dangerous and VERY limiting. Here is a cheap full range Tx and Rx if you want it just to get it...

You could probably establish a serial connection with the KK board, but a Raspberry Pi is not designed to be a micro-processor, it is a micro-computer. At the very least you need an Arduino Nano. If you plan to add a bunch of sensors for colision detection and whatnot you will need a bigger...

Get the Multistar motors: Multistart: Max Watts(W): 165 Max. current(10s): 15 amps Aerodrive: Max Loading: 10A Max Power: 96W I assume you are getting the mode 1 because there are no mode twos in the AU warehouse? Either way it is a really...

That all sounds perfect haha. What type of wood are you using for the thinner parts? Also for 935 k/v motors you might want to use 10'' props or move to 1000 k/v motors to get the best performance (assuming you are using 3S) .

That is REALLY nice, the main concerns are strength and weight. I am very interested in this haha. Can it fold up with props on (probably best NOT to have props on haha), but that would be appealing. I love how the handle protects the electronics, does it have landing skids or feet?