RunRyder RC
WATCH
 1 page 1387 views POST REPLY
HomeAircraftHelicopter
e-
Elec-Helicopters New or Limited Activity
Ikarus › Axi 2814/12 and Axi 2820/12
10-11-2005 10:16 PM  12 years agoPost 1
atb

rrApprentice

England

My Posts: All  Forum  Topic

Is there anybody out there who is using the Axi 2814/12 or the Axi 2820/12 brushless motors with 10 cells if so is it at all possible for you to let me know what pinion you are running as im looking to buy one of these.

also please could you tell me what these motors are like I think the specs look ok but im not totally sure to be honest.

Ive kinda been forced into doing this as I cant be bothered with making it IC and have finally melted my esc (not surprisingly) after running the eco to death on 100% throttle with 2 speed 650 motors driving the heli... It went well while it lasted though all of 2 mins.

not to worry just means i have no excuses now i need to replace the whole motor setup... so brushless here i come.



atb

I lost 215 pounds on the eco diet in just 3 stick movements.

PM  EMAIL  Attn:RR  Quote
10-13-2005 08:48 PM  12 years agoPost 2
Hobbywood

rrApprentice

Kerikeri Northland New Zealand

My Posts: All  Forum  Topic

I'm using a 2814/12 with a 22tooth pinion running on 10 cells. It goes very well but does get a little warm. It's happier on 9 cells. I have a 2820/12 but the rpm per volt is a little low. I also use a twister 25 (09). this runs at 1500 rpm/volt which is just right. Its bigger than the AXI 2814 but runs well, with plenty of power and stays nice and cool when run with the 22 tooth pinion and 10 gp3300 cells. It goes preety well on 9 cells also. oth flown using a Jeti 45 amp ESC.

electric chopper nut (bit mad actually)

PM  EMAIL  Attn:RR  Quote
10-13-2005 11:03 PM  12 years agoPost 3
atb

rrApprentice

England

My Posts: All  Forum  Topic

Hi

cheers for your reply how long have you been running the axi in its current setup? do you think on 10 cells its life will be shortened dramatically?

i saw on the ikarus forums that someone was flying the axi on a 23 tooth pinion and pulling 2000rpm headspeeds now thats a bit much im looking for about 17-1800 rpm... is the 22 pinion enough to get that do you think?

thanks for all your help



atb

I lost 215 pounds on the eco diet in just 3 stick movements.

PM  EMAIL  Attn:RR  Quote
10-14-2005 10:35 AM  12 years agoPost 4
Hobbywood

rrApprentice

Kerikeri Northland New Zealand

My Posts: All  Forum  Topic

Hi there ATB

I've had my AXI for about 2 years. It has flown regularly for all that time. I used to fly on 8 cells for adequate performance but upgraded to 10 and it goes fine. On the 22 tooth pinion you have a theoretical head rpm of about 2200. In practical terms I think that this is more like 1850. I've never measured it. I fly on 9 cells now as this is half the packs I use in a LOGO 14 so it's convenient. This should give about 1650 at the head and i find the performance fine. 10 cells is the limit for this motor and I never had any probems with it except that I thought it felt a bit hot.

As I said in my previous post the Twister 25(09) is about the same rpm/volt but doesn't seem to get as hot. Can't tell the difference in performance between my two ECOs with these motors and the same cells. Since I bought mine the quality of the AXI motors has been improved. I don't think you'll be dissapointed, for a budget these motors are great. The 22 tooth pinion would be just fine to achieve the rpms you are talking about. I might even be tempted to go down to 20 or 21 and work the motor less, increasing duration.

electric chopper nut (bit mad actually)

PM  EMAIL  Attn:RR  Quote
10-14-2005 04:38 PM  12 years agoPost 5
atb

rrApprentice

England

My Posts: All  Forum  Topic

Thanks for that

Ill let you have some peace now lol.



atb

I lost 215 pounds on the eco diet in just 3 stick movements.

PM  EMAIL  Attn:RR  Quote
02-28-2006 06:55 AM  12 years agoPost 6
twinring

rrKey Veteran

japan

My Posts: All  Forum  Topic

I know that this is an old thread, but I also have the 2814/12 and have been flying it with a 19t pinion, I just changed the pinion to 17t slow the head speed down but now the heli is very hard to control and flies sloppily. I dont know enough about motors etc. to know whats best. I could re-adjust my tx and pitch to eventually accomodate the new pinion but Im wondering if Im just working against myself. What do you think?

PM  EMAIL  GALLERY  Attn:RR  Quote
03-03-2006 01:10 PM  12 years agoPost 7
atb

rrApprentice

England

My Posts: All  Forum  Topic

sounds to me like your headspeed is too low mate put a tooth or two on it and see how it is mate.

alternativly up the thnrottle curve in your transmitter to accomodate the new pinion.

hope this helps



atb

I lost 215 pounds on the eco diet in just 3 stick movements.

PM  EMAIL  Attn:RR  Quote
03-03-2006 03:50 PM  12 years agoPost 8
twinring

rrKey Veteran

japan

My Posts: All  Forum  Topic

atb.
Ive since put the 19t back on but I havent been able to fly it yet due to weather. Thanks for the input.

PM  EMAIL  GALLERY  Attn:RR  Quote
03-04-2006 02:04 AM  12 years agoPost 9
twinring

rrKey Veteran

japan

My Posts: All  Forum  Topic

How would you compare the AXI 28 series motors to the Hacker A30 series?

PM  EMAIL  GALLERY  Attn:RR  Quote
03-11-2006 10:43 PM  12 years agoPost 10
windyone

rrApprentice

York, England

My Posts: All  Forum  Topic

atb

A little late on this one but I am running a AXI 2820/10 with 5s lipo. The 2820/12 rpm/V is low and you will only get a maximum of 1488 headspeed with your 10 cell pack.

The AXI is a good motor. I am still not doing full power flying with this set up - its too fast !.

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 1387 views POST REPLY
HomeAircraftHelicopter
e-
Elec-Helicopters New or Limited Activity
Ikarus › Axi 2814/12 and Axi 2820/12
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Tuesday, September 25 - 9:50 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online