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saitoflyer · 04-08-2008, 04:23 PM

I bought a NIB kit here in RR from someone but I dont think I got the .7 mod gears. Does it make a difference to use .5 or .7? What pinion should I use on Hacker a40 10L w/ TPX 6S 5000batt? thanks

Panda · 04-08-2008, 04:32 PM

I would alwys go for the .7 gear to be on the save side.. Pinion is dependent what headspeed you want to go for - I think you can start with 13t

Regards,

Peter

BruceW · 04-08-2008, 05:03 PM

On a Hacker A40-10L-8 (1100KV) 6S configuration you'll get the following head speeds for different pinions and mods. Overall, I think a mod 0.5 is fine for a Logo 500 running the Hacker.

These are max attainable speeds and you'll probably have it tuned down some on the governor to give it more head room.
Mod 0.7 (153T)
14T ~= 2100 (2150 full battery)
15T ~= 2250 (2320 full battery) <- This is my setup
16T ~= 2400 (2460 full battery)

Mod 0.5 (212T)
20T ~= 2160 (2218 full battery)
21T ~= 2270 (2330 full battery)
22T ~= 2380 (2440 full battery)

You can get these numbers yourself if you want to try my head speed calculator.
https://www.helifreak.com/showthread.php?t=55471

I think a 21T would be a good pinion for Mod 0.5 to keep a balance on power/heat.

Funflyer · 04-08-2008, 10:12 PM

OK, I'm new here. Can someone explain what is the difference between mod 0.5 and 0.7? Is it a dimension such as thickness? Or tooth count?

wlfk · 04-08-2008, 10:44 PM

Basically the size of the teeth. 0.7 is bigger.

K

wlfk · 04-09-2008, 01:22 AM

My question now...

I guess .5 would let you run a smaller pinion. But are there any other advantages/disadvantages? For example, would it be smoother and quieter?

K

OICU812 · 04-09-2008, 01:43 AM

Try to use Mod.7, it is more robust. other than gearing options as per kv and relevant ratios etc there is no advantage to Mod.5

Eyon · 04-09-2008, 05:05 AM

05 is great for smoooooth and quiet on 6s 500mm blades smooth flying. mod07 you can push more power through on the 550mm+ blades

lloyd 1 · 04-09-2008, 06:22 AM

Doesnt the 500 come with herringbone gears?Is it then still classed as mod05 or 07?

lloyd

Eyon · 04-09-2008, 06:43 AM

0.5, 0.6, 0.7, 1.0

they are standards,like like M2 M3 M4 and so on. it is simply the depth and pitch of the teeth as a standard.

All gears have this number, even car gearboxes do

billyd · 04-09-2008, 07:51 AM

Are you guys saying the 500 3d kits come with two different gear sets, .5 and .7 ???

Big Fil · 04-09-2008, 08:24 AM

yes, mine did.

04-08-2008, 04:23 PM	#1 (permalink)
saitoflyer Registered Users Join Date: May 2007	.5 mod or .7 mod on L500 3D? I bought a NIB kit here in RR from someone but I dont think I got the .7 mod gears. Does it make a difference to use .5 or .7? What pinion should I use on Hacker a40 10L w/ TPX 6S 5000batt? thanks __________________ hello there!

04-08-2008, 04:32 PM	#2 (permalink)
Panda Registered Users My HF Map location Join Date: May 2007	.7 or .5 Pinion I would alwys go for the .7 gear to be on the save side.. Pinion is dependent what headspeed you want to go for - I think you can start with 13t Regards, Peter __________________ Logo 500 3D, Z-Power 1100, Kontronik Jive 80+, Mikado V-Bar 5.0, Blades Spinblades SemiSymm 550 mm Hirobo Quark, e-Cobra Approach Engineering based on Logo 400 + V-Bar 5.0 (work in progress) Longitude: 16° 22' 05" E // Latitude: 48° 11' 20" N

04-08-2008, 05:03 PM	#3 (permalink)
BruceW Registered Users My HF Map location Join Date: Jun 2006	On a Hacker A40-10L-8 (1100KV) 6S configuration you'll get the following head speeds for different pinions and mods. Overall, I think a mod 0.5 is fine for a Logo 500 running the Hacker. These are max attainable speeds and you'll probably have it tuned down some on the governor to give it more head room. Mod 0.7 (153T) 14T ~= 2100 (2150 full battery) 15T ~= 2250 (2320 full battery) <- This is my setup 16T ~= 2400 (2460 full battery) Mod 0.5 (212T) 20T ~= 2160 (2218 full battery) 21T ~= 2270 (2330 full battery) 22T ~= 2380 (2440 full battery) You can get these numbers yourself if you want to try my head speed calculator. https://www.helifreak.com/showthread.php?t=55471 I think a 21T would be a good pinion for Mod 0.5 to keep a balance on power/heat. __________________ Logo 500 3D /Scorpion HK4020-1100KV (16T)/Jazz80/BLS451/Spartan DS760/BLS251/RT 560mm/AR9000 TRex 450SE /Scorpion HK-2221-8 (13T)/ AlignESC35(X)/ HS65MG/Spartan DS760/S9650/AR6100 Spektrum DX7

04-09-2008, 01:43 AM	#7 (permalink)
OICU812 Registered Users My HF Map location Join Date: Oct 2005 Location: Grande Prairie, Alberta	Try to use Mod.7, it is more robust. other than gearing options as per kv and relevant ratios etc there is no advantage to Mod.5 __________________ ...Once upon a time there were Nitros, flybars & frequency pins...Shawn

04-09-2008, 07:51 AM	#11 (permalink)
billyd Registered Users My HF Map location Join Date: May 2006	Are you guys saying the 500 3d kits come with two different gear sets, .5 and .7 ??? __________________ There's alot of nuts in this hobby.

04-08-2008, 10:12 PM	#4 (permalink)
Funflyer Registered Users Join Date: Jul 2006	OK, I'm new here. Can someone explain what is the difference between mod 0.5 and 0.7? Is it a dimension such as thickness? Or tooth count?

04-08-2008, 10:44 PM	#5 (permalink)
wlfk Registered Users Join Date: Sep 2007	Basically the size of the teeth. 0.7 is bigger. K

04-09-2008, 01:22 AM	#6 (permalink)
wlfk Registered Users Join Date: Sep 2007	My question now... I guess .5 would let you run a smaller pinion. But are there any other advantages/disadvantages? For example, would it be smoother and quieter? K

04-09-2008, 05:05 AM	#8 (permalink)
Eyon My HF Map location Join Date: Jul 2007	05 is great for smoooooth and quiet on 6s 500mm blades smooth flying. mod07 you can push more power through on the 550mm+ blades

04-09-2008, 06:22 AM	#9 (permalink)
lloyd 1 Registered Users Join Date: Jul 2006	Doesnt the 500 come with herringbone gears?Is it then still classed as mod05 or 07? lloyd

04-09-2008, 06:43 AM	#10 (permalink)
Eyon My HF Map location Join Date: Jul 2007	0.5, 0.6, 0.7, 1.0 they are standards,like like M2 M3 M4 and so on. it is simply the depth and pitch of the teeth as a standard. All gears have this number, even car gearboxes do

04-09-2008, 08:24 AM	#12 (permalink)
Big Fil Registered Users My HF Map location Join Date: Mar 2007	yes, mine did. __________________ Mikado Model Helicopters Edge Blades

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