Nov 25, 2012, 08:07 PM
Registered User
Japan, Tokyo
Joined Mar 2012
291 Posts
Quote:
 Originally Posted by mark_q Here is a sample from a castle ice 100 on one of my "other" ships, you can see the average is 12.7A, but the max is 94.2A:
That is a heli, isn't it?
Nov 25, 2012, 08:49 PM
Registered User
Australia, NSW, Marsfield
Joined Feb 2012
354 Posts
Quote:
 Originally Posted by mark_q Yes, but that's the average not the max or min. This is why I suggest, if you really want to know, get an ESC that will chart the power then you can see what is really happening. Here is a sample from a castle ice 100 on one of my "other" ships, you can see the average is 12.7A, but the max is 94.2A:
actually, its close to the peak, I fly very gently... or I'd be using a pack with a higher C rating. 5000/20C = 100A, and I've got 4 x 20A escs..

Its you guys that really throw them around that get higher peak current draws...

But I take your point... and will be fitting stronger packs to my hex.
Nov 25, 2012, 09:24 PM
Seattle, WA & Las Vegas, NV
Joined Sep 2003
4,237 Posts
Quote:
 Originally Posted by Hkubota That is a heli, isn't it?
Nope, never flown a heli but thanks for asking! The chart is from a Hanger 9 Funtana 125 with a Scorpion 4035-330 motor, 8S4000, and a Xoar 18-8 prop.
Nov 25, 2012, 11:52 PM
Amateur photographer
Finland, Pirkanmaa, TRE
Joined Nov 2012
34 Posts
Quote:
 Originally Posted by tomikulmala Ok, thanks! Got to steal one CC BEC (10A) from my RC cars to the hexacopter then... .
To answer my original question (Naza gimball output current)...

Q: "I was wondering how much current can Naza output through the gimbal stabilization -channels?"
A: "Naza VU output is 3A , 5V. Do not go over it."

 Nov 26, 2012, 12:07 AM Seattle, WA & Las Vegas, NV Joined Sep 2003 4,237 Posts Nice to know, thanks! Latest blog entry: Pusher Style Folding Prop Set-Up
 Nov 26, 2012, 02:28 AM Registered User United States, CA, Anaheim Joined Dec 2011 450 Posts Will the NAZA work with a Stock Turnigy Plush 30a esc with all 3 wires connected or do I just need the Signal wire (white) connected and than disconnect the Red and Black? WIll it work with all THREE wires connected so I don't have to remove the wires? Also I have heard these ESC's may or may not work as stock and need to be re-flashed, is this true or not? Thanks.
 Nov 26, 2012, 07:07 AM Registered User Joined Feb 2008 144 Posts @shdwkeeper. well, just reed the manual..as you have a sep. NAZA BEC which monitors the voltage, it is not a smart moove to leave the bec of your escs working. so you have to remove the plus cable!do not know if it is red or orange.. i recommend dji optos.., i know, you guys loove the cheapo turnigy stuff, but dji is almost unbeatable performancewise.. www.mamo-models.com
Nov 26, 2012, 07:12 AM
United States, CO, Boulder
Joined Apr 2012
2,377 Posts
Quote:
 Originally Posted by MAMOARMIN @shdwkeeper. well, just reed the manual..as you have a sep. NAZA BEC which monitors the voltage, it is not a smart moove to leave the bec of your escs working. so you have to remove the plus cable!do not know if it is red or orange.. i recommend dji optos.., i know, you guys loove the cheapo turnigy stuff, but dji is almost unbeatable performancewise.. www.mamo-models.com
Because it not overpriced like the stuff on that site ^^^^
 Nov 26, 2012, 07:13 AM Registered User Australia, NSW, Marsfield Joined Feb 2012 354 Posts just pull the red (centre) wire. Mine didnt like it when I pulled all the grounds...
 Nov 26, 2012, 07:41 AM Suspended Account United States, AZ, Tucson Joined Mar 2012 3,261 Posts dji optos ROCK! the price is CHEAP for the ease of use and preformance you recieve!
Nov 26, 2012, 07:43 AM
Suspended Account
United States, AZ, Tucson
Joined Mar 2012
3,261 Posts
Quote:
Who knows, maby they are now adding mouse pee to save on cost!
 Nov 26, 2012, 08:20 AM Suspended Account United States, AZ, Tucson Joined Mar 2012 3,261 Posts aswedhtrh
 Nov 26, 2012, 08:54 AM Registered User United Kingdom, Bracknell Joined Nov 2000 13,173 Posts ESC ratings and Graupner props We recently had a discussion here on ESC ratings, so I thought I'd share the results of some testing I did today. I'm flying an F550 with Torxpower 2216 900 Kv motors on 3S 5800 Turnigy 'blue' cells (not Nano-Tech). AUW is 2.1 kg (with gimbal, camera, vtx, landing gear, and dome). Currently I'm using Graupner 10x5 E props, but I've got some 11x5s (with 5mm removed from each blade tip to fit the F550) to try. I wanted to find out the current prop rpm and amps in the hover, to compare against when I fitted the 11x5s. So ... hover current shows around 25A. Out of interest I did some full throttle climbs and pullups and the highest reading I could get was 49-50A (of course the Naza restricts power to give a maximum climb rate of 6 metres/second). I know my telemetry over-reads by about 6% on current, so corrected those would be around 24A hover and 48A peak. Max current is therefore 8A per motor ... which confirms the 18A ESCs I have are more than big enough. On the batteries, the peak current draw works out at 8.3C ... which is pretty comfortable for a 25C continuous / 30C burst pack Now the really interesting bit When I tach'd the props to get hover RPM I found that the motors with "L" props (2, 4, and 6 on the Naza) were turning at approx. 5,500 rpm ... but the others were turning at around 6,200 rpm! Now the torque must be matched or the F550 would have been spinning on the spot, therefore the left and right-rotating versions must have slightly different pitches Will be interesting to see what the results from the 11x5s are (I still need to balance those before fitting them).
Nov 26, 2012, 10:42 AM
Registered User
United States, AZ, Peoria
Joined Feb 2005
2,939 Posts
Bill,

Interesting numbers, and thanks for that data. I think I'm confused about the difference between T and R props RPMs...perhaps the molds are a bit off. I don't have a tach but I think I'll get one and check that on my own machines.

I have an attached snip of an Email I sent to a buddy as we've been trying out different motors and batteries. Sorry it's so small, but if you double click it's quite readable (I think!). It was a motor comparison but also shows the condition of my nano-tech battery which has been discussed previously. One thing I missed, that I'm sorry for now, was the current readings at hover. I'm sure they would've fallen in line with the high and low readings relative to each motor type.

-bob