YS 140, on 73". what prop???  
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All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> Quique's Aircraft Support >> YS 140, on 73". what prop???
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YS 140, on 73". what prop??? - 9/1/2006 9:58:22 AM   
Gimble Bender


 

Posts: 153
Joined: 2/3/2005
From: Farmington, KY, USA
Status: offline 		Rezagh,
Could you ask QQ what prop he ran on his 73" with the YS 140? I don't know how to prop it best for 3D. I would like to know the brand and size he recommends.
I have a Mejzlik 18X8 on it now but it won't work. My rpms are right where they should be but vertical pull out from a hover is very, very, very slow. . I can fine tune the mixture some more but it won't make that big of a difference. I'm hoping I'm just way off on the prop. It was what I had so I tried it.
Any one else have any ideas?

Thanks,
GB

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RE: YS 140, on 73". what prop??? - 9/1/2006 12:24:15 PM   
randy racer


 

Posts: 1297
Joined: 4/7/2005
From: mayfield, KY, USA
Status: offline 		gb i thought the Mejzlik was a 18-6?? if i haven't sold my 3W 28cc with my collection of props by this week end you can try some of them on at the Kennett fly in. i have a 18-8, 18-10 Xoar and a 18-8 biela. if one of them will work fly it this week end and order some next week.


randy racer

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RE: YS 140, on 73". what prop??? - 9/1/2006 10:06:33 PM   
arobatx


 

Posts: 1617
Joined: 1/18/2006
From: Kalona, IA, USA
Status: offline 		I have the slightly older 72" version, and I remember reading that QQ used an APC 17x8 on his. I have the 1.40 sport on mine, and run Cool Power 30% Heli, with the APC 18x6 and get just under 9000 RPM as desired. I have no issues pulling out from a hover.

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Chad

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RE: YS 140, on 73". what prop??? - 9/1/2006 10:51:07 PM   
Gimble Bender


 

Posts: 153
Joined: 2/3/2005
From: Farmington, KY, USA
Status: offline
quote:

ORIGINAL: randy racer

gb i thought the Mejzlik was a 18-6??


randy racer


It is an 18X6, my bad. I was at work and in a hurry. Got my props confused.

arobatx,
Mine is turning around 8600 on the ground with the Mejzlik 18X6 but it won't pull out vertical very well at all. Hmmmm.......??

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RE: YS 140, on 73". what prop??? - 9/2/2006 4:35:48 AM   
zope_pope



Posts: 1043
Joined: 1/19/2003
From: Aurora, CO, USA
Status: offline 		What model YS140? I have a DZ and up here at 6000' msl I am turning an APC 18x6W at 9300 rpm+! I run cool power 30% Heli.

I have never run a Mejlik, but I wouldn't expect it to drop that many rpm's.

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RE: YS 140, on 73". what prop??? - 9/2/2006 7:53:43 PM   
Gimble Bender


 

Posts: 153
Joined: 2/3/2005
From: Farmington, KY, USA
Status: offline 		Mine is the 140 sport.

GB

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RE: YS 140, on 73". what prop??? - 9/3/2006 4:02:55 AM   
merlin3


 

Posts: 72
Joined: 1/29/2003
From: Beavercreek, OH, USA
Status: offline 		18x6 is the recommended prop and what quique runs. surprisingly my 140l likes the cheapo zinger 18x6 better than the apc 18x6w. It seems to have a lot better pull out.

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RE: YS 140, on 73". what prop??? - 9/4/2006 2:46:16 AM   
Gimble Bender


 

Posts: 153
Joined: 2/3/2005
From: Farmington, KY, USA
Status: offline 		Thanks merlin,
I have an 18X8 Zinger, but didn't try flying with it, I'll pick up an 18X6 and see how it does.

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RE: YS 140, on 73". what prop??? - 9/20/2006 7:21:28 AM   
zope_pope



Posts: 1043
Joined: 1/19/2003
From: Aurora, CO, USA
Status: offline 		Any results on the Zinger?

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RE: YS 140, on 73". what prop??? - 9/20/2006 2:39:38 PM   
arobatx


 

Posts: 1617
Joined: 1/18/2006
From: Kalona, IA, USA
Status: offline 		Hey Guys,

This past weekend I tried a Zinger Pro Series 18x6, and I found the same result that Merlin3 did with his 1.40L. Mine is the 1.40 Sport but I gained a couple hundred RPM with this prop compared to the APC 18x6w, and it spools up quicker. I am using the CP 30% heli fuel, and it's turning 9100rpm.

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Chad

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RE: YS 140, on 73". what prop??? - 9/21/2006 1:11:53 AM   
zope_pope



Posts: 1043
Joined: 1/19/2003
From: Aurora, CO, USA
Status: offline 		More thrust with the increase of Rpms? Or just more Rpms? i need a bigger prop as the recommended range for my dz is 8000-8500.

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RE: YS 140, on 73". what prop??? - 9/21/2006 2:37:23 PM   
arobatx


 

Posts: 1617
Joined: 1/18/2006
From: Kalona, IA, USA
Status: offline 		Zope Pope,

Get yourself a Skorepa 18x6 wood for your DZ. I think you will find this prop very hard to beat.

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Chad

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