My new 550 clone

[Hands0n]

If DJI ever read this let me just tell them that some good has come of the Naza M Lite hack featured elsewhere on this forum ::)  I have had my interest in Naza re-kindled and recently took delivery of a Naza M V2 with GPS and a BT unit - albeit second user, but its got me back in the game.

Why? Basically I had all of the bits for a 550 hex from around this time last year which had sat in my box o';bits.  The Naza M Lite was going to go in it, but after the fly away (I got it back) all confidence had gone in using that.

Anyroadup, I';ve built it now, and  a quick and very short maiden has demonstrated it working okay, albeit with a bit of a twitch as it tries to hold altitude stable. The gains will need tweaking no doubt, as it is currently on out of the box settings of 125%. 

Flight time with a 2200mAh 3S is just a shade under three minutes! This going to need a bit of work to optimise. I';m going to need much more than that ::)

A heavy beast compared to what I am used to. I ran it across the scales with various batteries as follows:
(all weights in kg)

1.466 - no battery
1.658 - 3S 2200mAh NanoTech
1.690 - 3S 2700mAh Zippy Compact
1.917 - 2 x 3S 2700mAh Zippy Company (total capacity 5400mAh)
1.995 - 4S 5000mAh NanoTech
2.578 - 2 x 4S 5000mAh NanoTech

Build List
Frame - HJ 550 clone
ESC - RCTimer 45A Opto
Motors - N2830/11-KV1000 Outrunner Brushless Motor (3S-4S)
Propellers - Gemfan 8x4.5 carbon reinforced ABS
Receiver - FrSky Delta-8 in CPPM mode
FC - Naza M V2 with GPS, Bluetooth module

Here is the eCalc link, hit Calculate to regenerate the motor graph:
http://bit.ly/17OTZyq


Piccy - well, it is just a bog standard 550 build, nothing clever or sexy in it. But here it is anyway.

[tupoar]

Nice work chief!

[flybywire]

Welcome to the Hex club Danny boy!  We like plenty of ';hex'; here!   

P.S I use a Zippy compact 5000 4 cell and get a good 15 minutes, and that';s with a gopro attached.

[DarkButterfly]

Looks good H0,

[Hands0n]

/quote]

15 minutes!

I strapped a pair of Zippy Compact 2700 (5400mAh) together, didn';t get anything like 15 mins, felt more like 10. I should probably try with 1045 props once I get the hex gains sorted (currently 125% default).  Then tweak them for the 10in props and see what comes of that. 

In time I may swap out the motors for DJI-class motors (same KV) and see how that goes.

[flybywire]

Well, i';m using emax 2216';s and t-motor carbons (10") but didn';t really get much less using eprops, it';s just quieter and less vibey.

[Hands0n]

I reckon those EMP motors of mine are a bit power hungry. Will have to do some timings, but if all else fails then its a set of those DJI 980KV motors or EMax 2216 that I already have in a few of my builds and have found totally reliable (and silent as you say).

Hoping to get some air time on Sunday to sort out the gains. Then if its still messing about I';ll switch the RX over to PWM.