RunRyder RC
WATCH
 6 pages [ <<    <     1      2     ( 3 )     4      5     NEXT    >> ] 14472 views POST REPLY
HomeAircraftHelicopter
e-
SAB
Other › Goblin Motors
01-25-2012 03:40 PM  6 years agoPost 41
Band1086

rrElite Veteran

Kennewick, Wa. USA

My Posts: All  Forum  Topic

14S would, might require slight mod for 16S though. Might depend on what size batts used. I'm thinking of 16S 3850's, with a 520 KV 1917 Neu motor. I don't really want to run super high HS though, it really drops FT, but looking for very high eff.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-25-2012 03:53 PM  6 years agoPost 42
worldofmaya

rrApprentice

Graz, Styria - Austria

My Posts: All  Forum  Topic

I'll use 2x 8s 3300mAh, should fit, weight and energy is the same as my 2x 6s 4450mAh. Higher efficiency should should slightly increase flight time.
-Klaus

TT Raptor e720 / SAB Goblin 700 / Suzi Laos / MSH Protos 500

PM  EMAIL  GALLERY  Attn:RR  Quote
02-13-2012 05:23 PM  6 years agoPost 43
Sam2b

rrElite Veteran

Tacoma, WA

My Posts: All  Forum  Topic

dual stage ratios
I've not see anywhere the 2nd stage gear ratio. What is it? I see the 1st stage ratio only. And it doesn't matter if it is a belt drive - it is still teeth count. We kinda need the 2nd ratio too, please.

_Sam B_

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-13-2012 08:46 PM  6 years agoPost 44
OnTheSnap

rrApprentice

Santa Clara, Ca

My Posts: All  Forum  Topic

It boils down to a 215T main gear. Use this to calculate the correct pinion.

MSH USA -- Cyclone -- Jeti -- Xnova

PM  EMAIL  GALLERY  Attn:RR  Quote
02-13-2012 09:43 PM  6 years agoPost 45
Sam2b

rrElite Veteran

Tacoma, WA

My Posts: All  Forum  Topic

Thanks, but I'm looking for the 2nd stage gear ratio, not pinion selection.

_Sam B_

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-13-2012 11:31 PM  6 years agoPost 46
joseheli

rrApprentice

Jacksonville, FL

My Posts: All  Forum  Topic

Guys

Will the Scorpion HKIII 4035- 530kv fit with out cutting the canopy?

"No crash, No gain"

PM  EMAIL  GALLERY  Attn:RR  Quote
02-13-2012 11:59 PM  6 years agoPost 47
OnTheSnap

rrApprentice

Santa Clara, Ca

My Posts: All  Forum  Topic

Not sure why you really need the second stage ratio? Main gear + second stage is equivalent to 215T from motor pinion to main gear (this number already includes the 2nd stage gear reduction).

No other math is required.

Yes 4035 fits fine with no canopy cutting.

MSH USA -- Cyclone -- Jeti -- Xnova

PM  EMAIL  GALLERY  Attn:RR  Quote
02-14-2012 12:05 AM  6 years agoPost 48
Sam2b

rrElite Veteran

Tacoma, WA

My Posts: All  Forum  Topic

Not sure why you really need the second stage ratio?
It is what I want, not need. How about the person who knows the information respond, please? What is the 2nd stage ratio??

_Sam B_

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-14-2012 04:22 AM  6 years agoPost 49
OnTheSnap

rrApprentice

Santa Clara, Ca

My Posts: All  Forum  Topic

The information you seek is in the manual: http://www.goblin-helicopter.com/shop/manual.php

motor pulley -> 60T pulley -> 19T (pinion) -> 68T (main gear)

60/19 * 68 = ~215 (size of the virtual main gear)

My own curiosity is why I asked why you wanted to know the secondary ratio. I might learn something. If you don't care to share, then fine. If you're just punching this into a headspeed calculator that handles the above equation, then cool. ~just curious~

MSH USA -- Cyclone -- Jeti -- Xnova

PM  EMAIL  GALLERY  Attn:RR  Quote
02-14-2012 05:07 PM  6 years agoPost 50
Sam2b

rrElite Veteran

Tacoma, WA

My Posts: All  Forum  Topic

Thanks, that is information already shared 3+ times.
I want to know the 2nd stage gear ratio - it's just that simple.
What is it? Reply if you know.

_Sam B_

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-14-2012 05:30 PM  6 years agoPost 51
OnTheSnap

rrApprentice

Santa Clara, Ca

My Posts: All  Forum  Topic

LOL. You are a funny guy.

All the info you need is in the above post. But maybe I'm too stupid to understand what you need? No one in the US has the Heli yet, so all we have is the manual:

68/19 = 3.58

MSH USA -- Cyclone -- Jeti -- Xnova

PM  EMAIL  GALLERY  Attn:RR  Quote
02-14-2012 08:29 PM  6 years agoPost 52
rexxigpilot

rrProfessor

Florida

My Posts: All  Forum  Topic

All the info you need is in the above post. But maybe I'm too stupid to understand what you need? No one in the US has the Heli yet, so all we have is the manual:

68/19 = 3.58
OR is it 19/68 = 0.28 Math confuses many. I have to show the math in my work usually, so I do it here too. I'm probably wasting my time too.

PM  EMAIL  GALLERY  Attn:RR  Quote
02-15-2012 12:03 AM  6 years agoPost 53
joseheli

rrApprentice

Jacksonville, FL

My Posts: All  Forum  Topic

Guys Question which motor ydo you think is best.HKIII 4035-500kv. or the Scorpion HKIII 4035- 530kv ?

"No crash, No gain"

PM  EMAIL  GALLERY  Attn:RR  Quote
02-15-2012 12:33 AM  6 years agoPost 54
OnTheSnap

rrApprentice

Santa Clara, Ca

My Posts: All  Forum  Topic

Goblin has a massive number of motor pulleys available, so either work fine.

If you have the typical hard 3D target gov'd headspeed of 2200RPM, 530kV is best for the included 22T motor pulley. If you go with a 500kV you'll probably want a 24T pulley.

If you have lower or higher gov'd headspeed targets then this suggestion will change accordingly.

Spend some time playing with this.. The goblin is already a drop down option (use 215T as a main gear. It does not natively support 2 stage gearing).

http://www.readyheli.com/headspeed-calculator.html

MSH USA -- Cyclone -- Jeti -- Xnova

PM  EMAIL  GALLERY  Attn:RR  Quote
02-17-2012 06:53 AM  6 years agoPost 55
joseheli

rrApprentice

Jacksonville, FL

My Posts: All  Forum  Topic

Guys I am kind scare of the spec of this motor That I am planning to mount on the goblin:

http://www.greathobbies.com/product...d_id=SCOHK40022

It says 100a only ? My ESC will be a CC 120 HV . Do you think I will have problem of over heating? Lipos are 2 x 6s 5000mah 30c-40 in parallel

SPECIFICATIONS
40 mmStator Diameter:
35 mmStator Thickness:
12Number of Arms:
10Magnet Poles:
9 Turn DeltaMotor Wind:
22-strand 0.29mmMotor Wire:
530 KV RPM/VoltMotor Kv:
2.15 ANo-Load Current (lo/10V):
0.015 OhmsMotor Resistance (Rm):
80 AMax Continuous Current:
3400 WattsMax Continuous Power:
460 gWeight:
49.98 mmOutside Diameter:
5.98 mmShaft Diameter:
61.8 mmBody Length:
100.0 mmOverall Shaft Length:
12 sMax LiPo Cells:
100 A (5 seconds)Peak Current:
4400 Watts (5 seconds)Peak Power:
5 degMotor Timing:
8 kHzDrive Frequency:

"No crash, No gain"

PM  EMAIL  GALLERY  Attn:RR  Quote
02-17-2012 07:13 AM  6 years agoPost 56
rexxigpilot

rrProfessor

Florida

My Posts: All  Forum  Topic

Jose, that CC120A HV ESC will be more than sufficient for your motor.

My concern is whether you plan on doing hard 3D with that motor? It is on the small side of a 700 class motor and more suitable for a 600 class heli if you plan om hard 3D. If you are sport flying and doing mild 3D, the 4035 is fine.

Here is a much better motor choice IMO for sport or mild 3D on the Goblin.
http://www.xeramotors.com/index.php...uemart&Itemid=1

PM  EMAIL  GALLERY  Attn:RR  Quote
02-17-2012 07:17 AM  6 years agoPost 57
joseheli

rrApprentice

Jacksonville, FL

My Posts: All  Forum  Topic

Yes I fly hard 3d , rexxigpilot What about this one?

http://www.greathobbies.com/product...d_id=SCOHK50002

"No crash, No gain"

PM  EMAIL  GALLERY  Attn:RR  Quote
02-17-2012 07:48 AM  6 years agoPost 58
rexxigpilot

rrProfessor

Florida

My Posts: All  Forum  Topic

Much better choice for hard 3D and will work fine with your CC120HV. The only problem is it is 66mm long. The max that will fit under the Goblin canopy is 64mm. You also need a 6mm motor shaft to fit the Goblin pinion pulleys. Try some of the hotter 45xx motors from Xera or Scorpion. I'm going with the Xera 4530. You could run this with your CC120, although the CC160 would be better if you fly at xtreme levels.

PM  EMAIL  GALLERY  Attn:RR  Quote
02-17-2012 08:39 AM  6 years agoPost 59
whiskey

rrVeteran

Richmond,Va. USA

My Posts: All  Forum  Topic

You can always cut the canopy
That's what I'm doing to jam a 4535le in my goblin.

PM  EMAIL  GALLERY  Attn:RR  Quote
02-17-2012 03:04 PM  6 years agoPost 60
Stykz

rrApprentice

Oldham/ England

My Posts: All  Forum  Topic

rexxigpilot

I am going with the x-era 4530 also but i am going to try it with the kontronic 120hv esc, do you think the motor might be too much for it.

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 6 pages [ <<    <     1      2     ( 3 )     4      5     NEXT    >> ] 14472 views POST REPLY
HomeAircraftHelicopter
e-
SAB
Other › Goblin Motors
 Print TOPIC  Make Suggestion 

 18  Topic Subscribe

Tuesday, December 18 - 7:28 pm - 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