Mockup

3 Inch Project

By Positronix on Jan 21, 2019

0  30  0

Choosing the components
My goal with this quad is to have a powerful and fun 3" that is just under the 250g limit. Hitting that mark is easy if you don't care about flight time. My goal is to hit 250 with 850mAh batteries and 1407 3600kV motors.

My initial plan was to use the Japalura 3" which looked beautiful with the purple aluminum side rails. Unfortunately, that is no longer available. I was still set on using the frame, however, until I started looking at the weights of all the components I was planning to use for this build. If I wanted to hit my hard 250g limit with the Japalura and a RunCam Split Mini 2, I would have to run a 650mAh 4s battery which I'm not very keen on.

I quickly decided that flying is really just for my own enjoyment and decided to scrap the ability to record HD with the Split for a Swift Micro, but that only let me bump up the battery to a 700mAh 4s.

I started looking at other frames and found that I also liked the look of the GEPRC Sparrow which comes in purple. I was more interested in the true x version because it came with a solid unibody, but there is a slightly larger version in a stretch x configuration. With that decided, I was sitting at 250.9 g (on paper) with an 850mAh 4s battery. I think I can trim some of that off when I finalize my choice of antenna and remove the wrapper on my receiver.

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