RunRyder RC
WATCH
 1 page 897 views Post Reply
Home✈️Aircraft🚁Helicoptere-MikadoOther › Jazz Overheat Issue
05-25-2007 02:44 AM  13 years ago
Topic Vote0Post 1
jpalmer

rrApprentice

Meadville, PA

MyPosts All Forum Topic
Jazz Overheat Issue
I have Logo 10 3D, 4S4P, Hacker C50 13L, Jazz 55-10-32 set to throttle curve of 75% for 1850 RPM's. After flying this heli all last summer without issue, this has now come up. After 6 minutes of flying (the battery is capable of almost 20 minutes), the RPM's drop about 300 and the Jazz LED displays 3 blinks (overheat). It does it every flight now. Any suggestions? Increase the throttle curve? Send in the Jazz for service? Thanks, Joe..... (PS, no hard maneuvers, just fly around level with some inverted)
SHARE  PM  EMAIL  Attn:RR  Quote
05-25-2007 01:03 PM  13 years ago
jpalmer

rrApprentice

Meadville, PA

MyPosts All Forum Topic
I do note there does not seem to be much air flow through this canopy and things do get real hot inside. Do any of you cut air vents in the canopy?
SHARE  PM  EMAIL  Attn:RR  Quote
05-26-2007 12:33 AM  13 years ago
caseyjholmes

rrElite Veteran

Portland, Oregon

MyPosts All Forum Topic
I don't have a jazz, so I'm not sure. But what kind of amps does a 4s setup draw? I think lower voltages draw higher amps. Thats odd that it started happening out of nowhere though..

I would check the motor shaft to see if a bearing is going bad. If all else fails, you might end up sending in the jazz and the motor for a checkup.

Also, I don't have to cut air vents on my L103D canopy with the NEU 1910 1Y. It ends up about 150-160* after a good 4.5 min flight on 6s.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-29-2007 06:48 PM  13 years ago
jpalmer

rrApprentice

Meadville, PA

MyPosts All Forum Topic
Okay, all the bearings seem free. I did forget to mention, I did switch to a Spectrum radio system prior to starting this season, but I would not think this would cause the overheating problem. Joe..
SHARE  PM  EMAIL  Attn:RR  Quote
05-31-2007 05:35 AM  13 years ago
OICU812

rrMaster

Grande Prairie, Alberta, Canada

MyPosts All Forum Topic
Sounds like you should send it in for service to me. The radio etc will have absolutely nothing to do with it. Kontronik is agood about service and while you are at it, ask them to install the latest firmware on the esc before sending it back to you....Once upon a time there were Nitros, flybars and frequency pins...
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
06-03-2007 06:34 PM  13 years ago
nicco

rrVeteran

Sweden

MyPosts All Forum Topic
Have you recalibrate teh Jazz after the change of radio?

It can be that 100% not is 100% so 75% is not the same headspeed as before. That might cause a higer amp draw than before. Or your skills is higher now ant takes more amps!

/N
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
06-03-2007 11:28 PM  13 years ago
jpalmer

rrApprentice

Meadville, PA

MyPosts All Forum Topic
No, I did not. I will have to look to see how to do that. Joe...
SHARE  PM  EMAIL  Attn:RR  Quote
06-04-2007 06:48 AM  13 years ago
Stet

rrElite Veteran

Key Largo FL

MyPosts All Forum Topic
run it at 95 or 100% throttle, not 75 (though many will say the Jazz can handle it). If the speed is too high, change your pinion. Could be that running it at 75 for so long wore it out prematurelykeepin' it real
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
06-04-2007 06:53 AM  13 years ago
OICU812

rrMaster

Grande Prairie, Alberta, Canada

MyPosts All Forum Topic
Stet, not true at all, the Jazz does not care about 50% even, it is not like a CC or Jeti etc. I have ran over 10 Jazz esc, this I know 100%, be well....Once upon a time there were Nitros, flybars and frequency pins...
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
06-04-2007 12:16 PM  13 years ago
g2loq

rrApprentice

Montreal - QC - Canada

MyPosts All Forum Topic
But what kind of amps does a 4s setup draw? I think lower voltages draw higher amps. Thats odd that it started happening out of nowhere though..
Right caseyjholmes !

Jpalmer, you are using a 55-10-32 on a 4s set up... Sure it could be the problem. I reached 72 amp on a Logo 10 (see the graph beelow) with a 6s setup (and a 80-6-18.. I use the 55-10-32 only on my 10s bird). With the same "what power" on a 4s setup, I can easely imagine I would have reach 90-100 amp... A 55-10-32 don't really like that.

IMHO send in the Jazz for service.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
06-05-2007 02:46 PM  13 years ago
jpalmer

rrApprentice

Meadville, PA

MyPosts All Forum Topic
Thanks. The consensus seems to be the ESC is too light. And, I will admit that flying better this summer than last, I am now going to full collective routinely. A Jazz 80-6-18 should be here any day.

Joe.......
SHARE  PM  EMAIL  Attn:RR  Quote
WATCH
 1 page 897 views Post Reply
Home✈️Aircraft🚁Helicoptere-MikadoOther › Jazz Overheat Issue
Print TOPIC

 2  Topic Subscribe

Monday, January 25 - 9:53 am - Copyright © 2000-2021 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online