Jazz 40-6-18 for the Trex 500?

[dalby]

Do you think it will do the job on 6S? I just thought of recycling the Jazz from my 450 but it is only 40 amps and the Align ESC used with 6s combination on the video, is 50 amps!

What do you think? It would be nice to have a perfectly govorned Trex 500!

Kristian

[aussiemick]

I think that it would do the job just fine.
Attached is a flight of my HDX500, about the same blade size maybe a bit heavier.

The Jazz will handle the 6S no worries, and I think the Amps will be lower than what is in this log file.

Mick

[kgfly]

Mick - your crawly avatar had me going for a second as there are other gnats fluttering around my screen just now :lol:

dalby - consider the power. A 500 will hover at about 250-400W, fly at 350-600 and pull up to 1000W peaks in a really hot setup. On 6s, 40A continuous gets you 840W and a 1000W burst is about 50A. I think the Jazz 40-6-18 will be a good candidate for a T500 :)

[OICU812]

Don't forget the Jazz escs' typically are actually able to handle far more amps than they advertise. I am willing to bet the 40-6-18 will safely handle spikes to 70 amps without issue. :wink:

[ozace]

My only concern would be the internal BEC of the Jazz 40 dealing with the servos you choose, unless you disable it and run an external bec.

[OICU812]

GOOD POINT ozace, it would be wise to consider an external BEC for certain!:lol:

[kgfly]

I am confused. I thought one of the benefits if the Jazz was the integrated switched-mode BEC. Is it not up to supplying 4 digital servos and a gyro ?

[fireup]

I am confused. I thought one of the benefits if the Jazz was the integrated switched-mode BEC. Is it not up to supplying 4 digital servos and a gyro ?

It can take the voltage, but may not have enough current to support 4 mini size servos...

[ozace]

http://www.kontronik.com/Datenblattjazz.htm

From the big K website the bec in the Jazz 40 and 55 is 2 amps max. (the Jazz 80 is 4 amps). If i were still running 36mhz i would use the internal bec but now with 2.4 where power supply is more critical i wouldnt risk it.

[Steel Butcher]

http://www.kontronik.com/Datenblattjazz.htm

From the big K website the bec in the Jazz 40 and 55 is 2 amps max. (the Jazz 80 is 4 amps). If i were still running 36mhz i would use the internal bec but now with 2.4 where power supply is more critical i wouldnt risk it.

I've noticed that before. Oddly enough, the Tech-MP site states this:
---
Ultra-low noise suppression circuitry for super-clean 6 Amp BEC power control to the Rx.
---

The K owners manual states that the BEC capacity is independent of the input voltage used (say 6S instead of 3S) so that can't explain it.



.

[ozace]

We have to assume the manufacturer web site is correct (and it is, from correspondance i have had with germany).
The US sites tend to have a few errors with motor kv etc that i have come across so i assume the Jazz data is also wrong.

Also we must remember that when the current series of Jazz were created there were no hipowered mini digital servos in existance so there was no need for the becs to have more capacity.

[kgfly]

Got it, thanks for the explanation guys.

[Socal500]

So has anyone actually tried this on the Trex 500 ? Not concerned with the BEC since an eternal would be used but can the ESC handle the load?

[LJS]

Hi All,

The manual for my Jazz 80-6-18 (and my 55-10-32 also) says that the BEC should not be used without a backup power supply. They're probably just covering their butts, but it's not really worth taking a chance, is it? It seems to me that it doesn't take much to drop a Western Robotics (or other quality) BEC in it to have some peace of mind.

Keep 'em flying.:lol:
LJS

[hung]

I have a Jazz 55 in my lepton

and we have attached a DPR to it and manged to get 80 amps through it no problems

I am running 3 futaba 3155's and a 401 with full size 9254

and yes i am using spectrum no problems so far

but for piece of mind I am using one of these

http://www.dimensionengineering.com/SportBEC.htm

in my Trex500 as I have very little faith with Align Speedies

and u can adjust output voltage from 5 to 6v with a flick of the switch

I have ordered from them a few times and for $1.25 shipping to Australia and takes about 7 days

u can't beat it

[jyheli]

I used a Jazz 40-10-32 on Trex 500 with 6SA123 without an issue. Yes I have been hitting 50A+and spike 60A on this esc with my logo 600 without issue. I always use external BEC.

Jonathan

[coboking]

Just courious, does anybody using JAZZ 40-6-12 on TREX 500? I would like to get a 40-6-12 for my trex 450 and wonder if I will be able to use it for TREX 500. Thanks!

[rotodingo]

Hello,

I use a Jazz 55-6-18 on both my Lepton and my JR SVE4S (Vibe 500E). Using 5S and Kontronics Kora motors. Both of them are flying with the internal bec. all servos are digitals. No troubles even with hard 3D.

You can see a 3D flight video of the SVE4S on my blog: http://rotodingo.over-blog.net (third article on the main page). Also the Lepton (softer flight, second article). you will need Divx plug-in to see the videos.

Lepton is fitted with: 3* Futaba S3150 +1*S9257
SVE4S is fitted with 3* JR DS-3401 and 1* Graupenr JR DS-3781.

Both receivers are Futaba 146ip 72Mhz

you have to be careful with external becs since most of them are generating strong radio noises. The internal bec of the Jazz is the only one that gives me same radio range than a rx batt...

Nicolas