RunRyder RC
 6  Topic Subscribe
WATCH
 1 page 2204 views POST REPLY
Helicopter
e-
Mikado
Logo 500 › Scorpion 4020-1100 pinion? Logo 500 3D
01-24-2010 10:02 AM  8 years agoPost 1
LaurenceGough

rrElite Veteran

UK

My Posts: All  Forum  Topic

Hey guys,

Currently I've got a 15t pinion on my Logo 500 3D's Scorpion 4020-1100kv motor.

I get low speed head wobble after cyclic stops (even gentle cyclic) and quite a bit of bogging.

Is this the correct size pinion for 3D flight?

It's probably my packs but I just wanted to make sure first.

Flybared Logo 500 3D
500mm Maniac carbons
6S 3700mAh FlightPower EVO 25's
Align 75A (External BEC)
Scorpion 4020-1100kv (15T)

Thanks,

Laurence

PM  EMAIL  GALLERY  Attn:RR  Quote
01-24-2010 12:33 PM  8 years agoPost 2
nyc863

rrNovice

australia

My Posts: All  Forum  Topic

yes it is the correct pinion, you can set a governor with head room to do ~2300, and unless you are insensitive on the sticks, it is hard to bog.

PM  EMAIL  Attn:RR  Quote
01-24-2010 01:17 PM  8 years agoPost 3
NTM

rrVeteran

Lloydminster, Alberta, Canada

My Posts: All  Forum  Topic

Your packs are not even close to being suffecient for that motor, especially if they're older packs.
I'd recommend the zippy 30c (or more) 6s 5000mah for really good power, or the hyperion 6s 5000 mah 35c for stupid power.

Other things to change would be the align esc to a jive 100LV, for a decent governor, and the blades to rotortech 560mm, for a good disk loading. Nobody really flies the 500 on 500mm blades, it's much better suited to the 550-560mm range.
The budget stuff you've got there is really holding your logo back.

PM  EMAIL  Attn:RR  Quote
01-24-2010 02:20 PM  8 years agoPost 4
Ronald Thomas

rrMaster

Gainesville, Fl, USA

My Posts: All  Forum  Topic

You might have been able to get away with that setup if it were FBL but with the flybar, you definitely need higher "C" lipos. You could also go up a tooth on the pinion but that will come at a pretty high price on pack life...........Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

PM  EMAIL  GALLERY  Attn:RR  Quote
01-24-2010 04:01 PM  8 years agoPost 5
LaurenceGough

rrElite Veteran

UK

My Posts: All  Forum  Topic

Tell me about it, really want some decent stuff on it. I'm going to go with the V-Bar first (lower drag will help too).

These Flight Power packs come down very hot, near the limit of lipos before damage for sure. The ESC comes down quite warm after hard flying too, but nothing to worrying. I guess I will have to change the ESC when I get new lipos due to the current flow. I will get new blades too along with the new lipos and ESC.

I'm still not sure if I should stick to 6S or go with a HV set-up. What's the highest cell count that this motor takes?

Do 6S packs last a while compared? That's the only thing that worries me really. I know 6S packs can have killer power.

Thanks for the great replies.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-24-2010 04:27 PM  8 years agoPost 6
Ronald Thomas

rrMaster

Gainesville, Fl, USA

My Posts: All  Forum  Topic

If you really want more power, you can try:

(1) New packs
(2) 4025-1100 (need a new ESC also)
(3) VBAR

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

PM  EMAIL  GALLERY  Attn:RR  Quote
01-25-2010 04:52 AM  8 years agoPost 7
Stolla

rrKey Veteran

Port elizabeth South Africa

My Posts: All  Forum  Topic

Not being a scorpion fan for a couple of reasons i had to replace my hacker turbine due to a problem although it's the 4025 1100 on 15t (6s)i found the difference between the outrage 25 c and zippy 30 to be huge, still have to fly it on hyp 35's but are slow feeding the monster as i want to be sure the jive 100lv led stays solid.
Can tell you though that i'm not taking the motor off again, there is no
audible bogging and in fact i have to really back off on all my 3d moves as the heli now climbs through all manouvres. So for sure you'll get amazing performance with higher c lipos. I would say the 25c's on scorp compared to the hack on 35's but the scorp on 30 is like having 2 hackers in there.
Laughingstill has the right advice for you take note of esc as it's pulling 116 amps on pitch pumps which would go up during extreme moves and the odd bad collective management

Common sense may not be common after all

PM  EMAIL  GALLERY  Attn:RR  Quote
01-25-2010 05:34 AM  8 years agoPost 8
HeliMan Dave

rrVeteran

Suburban Chicago

My Posts: All  Forum  Topic

Stolla, is it safe to say you're a Scorpion fan now?

Just remember, that Scorp will eat lesser batteries for breakfast so use the under performing batteries for warm-up/easy flights.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

PM  EMAIL  GALLERY  Attn:RR  Quote
01-25-2010 12:07 PM  8 years agoPost 9
Stolla

rrKey Veteran

Port elizabeth South Africa

My Posts: All  Forum  Topic

Hate to admit but i'm getting there i can't see how they expect me to oil the bearings so often but i've installed the counterbearing and hope it helps by supporting the sideways load on the bearings.

Common sense may not be common after all

PM  EMAIL  GALLERY  Attn:RR  Quote
01-25-2010 01:18 PM  8 years agoPost 10
NTM

rrVeteran

Lloydminster, Alberta, Canada

My Posts: All  Forum  Topic

The bearings in the 40 series scorpions last a long time as long as you don't run the gear mesh too tight. That's the number one cuprit in them failing early.
Takes all of about five minutes to change a set of bearings on the scorpions anyways.

PM  EMAIL  Attn:RR  Quote
01-25-2010 01:47 PM  8 years agoPost 11
Tday

rrKey Veteran

Needham, MA

My Posts: All  Forum  Topic

What are the best sources for motor bearing kits or are they everywhere?

Thanks,
Tom

PM  EMAIL  GALLERY  Attn:RR  Quote
01-25-2010 01:54 PM  8 years agoPost 12
LaurenceGough

rrElite Veteran

UK

My Posts: All  Forum  Topic

Hey guys, I got an action plan.

V-Bar first.

See how that flies with my old cyclic servos.

If cyclic is bouncy/bad then I will buy new servos and live with the bogging for a while.

If cyclic is okay then I will buy 550mm blades, Jive 80+ HV ESC, and some 6S Hyperion 35C 5000mAh lipos.

This way I can still use my 6S 3700mAh dead packs for hovering and very gentle flight, I mean they should be okay for hovering with 550mm blades? Right?

Cheers guys,

Laurence

PM  EMAIL  GALLERY  Attn:RR  Quote
01-26-2010 07:55 AM  8 years agoPost 13
Stolla

rrKey Veteran

Port elizabeth South Africa

My Posts: All  Forum  Topic

That's not a bad idea, just be sure to do the pitch pump test on the bench to be sure your bec is up to the higher ampdraw on vbar.
Vbar will be the single biggest improvement on how your heli flies followed by the higher c lipos and jive, i would however settle on the jive 100 lv as 80 is too low for the scorpion 6s with the high c ,I can guarantee you that once you've tried a high c 6s setting you wont want to go for higher volts.

Common sense may not be common after all

PM  EMAIL  GALLERY  Attn:RR  Quote
01-26-2010 12:07 PM  8 years agoPost 14
LaurenceGough

rrElite Veteran

UK

My Posts: All  Forum  Topic

Thanks Stolla!

I'm using an external Align 6A 5.8v BEC, comes down air temp currently but I guess with V-Bar that could change.

Are you sure about the Jive ESC? I mean Daniel was running the 80+ HV on his Logo 600 with 10S packs! I'm going to be adding a heatsink to the ESC.

Thanks again for your post, I agree about the V-Bar .

PM  EMAIL  GALLERY  Attn:RR  Quote
01-26-2010 02:54 PM  8 years agoPost 15
Stolla

rrKey Veteran

Port elizabeth South Africa

My Posts: All  Forum  Topic

Higher volts draw less amps so on higher cell count you want to go for the 80 hv but on 6s the 100lv.( i've measured 115 amps on pitch pumps with 30c lipo)but jive with heatsink can handle a lot more.
Many arguments have been made for higher cell count but i for one find the 30-35c 6s suitable for everything i can throw at it. espescially with vbar and jive you'll find it very powerful. The only drawback with 6s is that especially on the scorpion motors you have to use the higher c lipos as the lower (under 30 c lipos) will get very warm so may be damaged. But get the jive as soon you can as the internal bec will save you the extra weight.

Common sense may not be common after all

PM  EMAIL  GALLERY  Attn:RR  Quote
01-26-2010 03:07 PM  8 years agoPost 16
LaurenceGough

rrElite Veteran

UK

My Posts: All  Forum  Topic

Ahh, I forgot about that little note, funny isn't it...

I'm going to go ahead and take a slight risk by buying the Jive 80+ HV, but I'll make sure to gear it right and to keep a eye on the temps. With the Kontronik heatsink and a bit of decent silver thermal epoxy I hope it'll be okay.

Good point, higher C tends to last more cycles anyway. I'm looking at the "Hyperion G3 VX 5000mAh 6S 22.2V 35C/65C Lipo Packs" which I think are the best on the market for cycle life, and one of the best for power. They do 25C's which are less but as you say will not work as well and most likely will not last as many cycles, which is important to me.

Thanks for the help again .

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 2204 views POST REPLY
Helicopter
e-
Mikado
Logo 500 › Scorpion 4020-1100 pinion? Logo 500 3D
 Print TOPIC  Make Suggestion 

 6  Topic Subscribe

Wednesday, May 23 - 2:13 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online