Whoop There It Is
Here ya go! A true brushless whoop, true to the original size (give or take 1mm). Let me tell ya, it looks like a whoop, is the size of a whoop, but flies like 5", power loops and all. You know, it really annoyed me when I would see someone post, brushless "whoop" and then you look to only find its way bigger, or the prop size is massive, or it's a f** 3" build. So when i found that they finally made a true whoop sized frame that looks like a whoop as well, but that can handle brushless, well, it was a magical moment. The fact it can handle 2s was the extra bonus that gave me a chub. LOL.
The Frame
I used the newish Rakonheli 66mm brushless whoop frame with the 2s option. they have a 1s version but you know, more power = more fun. There are a few things I picked up being unsure how the 2s would work on such a small prop, and a crazy high kv motor, so i did pick up the 1s holder. But now i have seen what that holder looks like, I could of easily made and printed my own. So if you own a 3D printer, you can print most of the accesory parts they sell, they come printed anyways.
The Motors 
I happen to grab the motors on a crazy banggood sale for about 3 bucks a pop, actually the whole thing, not including the frame cost me only about 35 bucks, thanks to the anniversary sale. But I have to say, these motors are worth the full price. For how small they are, they rock. They kinda look like a micro version of the hypetrain motors, if they were blued like a motorcycle's headers. LOL.
You do however need to make sure you are really good at soldering and have a super fine tip. this is an advance build believe it or not. you need very good hand control to get everything built. this thing has the smallest screws ever. They like to fall, and bounce right out of your life never to be seen again. Luckily the kit has plenty of spares. The best part of this build is that i have full osd, rssi, and I can crank the signal up to 200mw for long distance flights(long distance for a whoop).
Photos
Part List
Show stores (3)
Alrighty, Im realy itching to build a 2s whoop like this! but i have noticed a lot of parts you have listed are unavailable or the links dont work. I am super new to this hobbie still and dont trust myself enough to fully pick compatable parts. Do you happen to have any other recomendations? I will post a list of what i have soon and if anyone can let me know if it will work or not that would be amazing!
I was wondering if you could help me out with an issue i am having. I just got my litte guy all built and put together, dang are those motor wires small, and i have everything all hooked up in betaflight, and i can not get esc response. Motors will not move.... and im so new to this i have no idea what to do. any suggestions would be very apriciated!
Awesome build! I'm switching over my 1s brushless https://rotorbuilds.com/build/10292 to 2s with the 0703 SunnySkys and was wondering if you had an issues with tuning. On 2s its shaking extremely violently to the point is unflyable. Any suggestions? I tried changing gyro_lowpass and dterm_lowpass no luck. Dropping d term doesnt help either.
Mine tune worked out nice fully stock, only thing I changed was my rates, but that wont help your isseue. I know I've seen peeps have issues going to 2's with the cam mounted to the front and not having somthing to balance it. make sure your quad isnt over working to compasate for having a heavy nose.
Debating on doing this build but looking at datasheets, I have become conflicted on 0603 or 0703. What are your flight times and how is motor heat after a hard flight?
Hey just checking in to see if you have had any problems with this build. I also posted on your youtube video, but i seem to be hitting the limit of the 5v supply using the exact parts listed above and having brown outs with any amount of throttle punch. I measured about 300mah for all the equipment not including the FC, it should have enough as it is rated at 500mah. flying LOS with the vtx turned off is no problem. thanks
So, I got it built and plugged in the batteries...andddd smoke. :( I don't know what I did wrong.
Could you possibly take a look at these pictures and see if they could be the culprit of the issue. https://imgur.com/a/PYjmC
The green I drew on the RX is where the solder was on the antenna, and there was continuity between the antenna and that component. In the other picture you can see it does not look like the antenna wire should touch any components.
The other picture is of the FC, and where the negative wire from the ESC is supposed to connect. there is continuity between that and the component next to it which is circled in red. Not sure if this is normal or not.
check the cable that connects the esc and the flight controller, more than likely you killed the ground wire between the two. I did the same thing because the screws that mount the flight controller and esc were touching at the tips. the esc has the mounting pads connected to battery positive and the flight controller has the mounting pads connected to ground. i had to trim the screws down a bit and make sure the ESC was isolated from the FC before powering up the second time.
Nice! I hope the dog hasn't eaten it by now. It was funny watching him chase it.
Just getting the parts in to build something similar, same FC but comes in a stack with the ESC and a cable connector. I went with the RH frame with the aluminum blade protectors. Can't wait to get in the air with this thing. Getting tired of brushed motors.
She loves it so much, we have been flying inside since its only 14f out right now. I need to throw another video together. That flight stack is great, just be sure to shorten the screws that come with the frame so they dont touch and short everything out. update me when you have your build posted on here. id love to see it.
Hey! I was curious if you soldered the motors to the ESC when they were mounted on the frame? Or loose....It's so damn small I am trying to figure out the best way.
Hey! So i got the FC and ESC from rakonheli, but it came with no wires or cables to connect the two. What can I order to do that?
Sweet. Did you just buy 2 JST 2.0 connectors like this https://www.tinywhoop.com/products/upgraded-battery-pigtail-powerwhoop-connector
and mod them yourself?
I noticed that you have 2x lipo batteries connected. Could you show us better how you made that connection. i get the power and the ground but the wire that goes between both batteries, it seems like it's going from ground to positive? could you please clarify? Also have you flown a betafpv 75mm? if you have how does this brushless fly compared to that? I watched your video but didn't see you do any flips, dives, or s turns so im just asking
It goes from the power to the ground if the next battery to put them in series. That's how your lipos are wired internally to give you 2s, The s in 2s stands for series. ;)
Also the vi do a few flips in the video and a split S. I would of had more but my lines leading up to them wernt that great. I'll shoot some LOS video to show the flips and rolls. It's on point. When you do a flip and rolls there is almost no recovery. As compared to a 75m I would say its better, It's a lot lighter, you get longer flight times, and its identical to a real whoop in all dimensions give or take 0.5mm
This is exactly what I was looking for! How well have the 0703 motors been holding up?
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So... i have fried 3 of these ESC's now... the last one was working wonderfully then boom, plugged in fresh bats and all the magic left...
well i usually check all contacts first before i connect a battery (also if there is carbon dust landing on your boards then yeah that will short)
so I got it all working! except it is very unstable and my rx seems to disconnect constantly... :P I will figure this out
maybe some manufacturing issue?