YS63 FZ....What Speed on Ground?  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> YS63 FZ....What Speed on Ground?
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YS63 FZ....What Speed on Ground? - 5/23/2002 8:57:28 PM   
OldRookie


 

Posts: 610
Joined: 12/11/2001
From: Prior Lake, MN, USA
Status: offline 		What is the best speed to prop the YS63 FZ to?
The plane that I have it in doesn't have the clearance to put a 12" prop on it, unless you grease every landing.
The 11 X 7 APC turns just over 12000 with a rich setting. I see people write that they are running them at just over 10000-1100 on the ground.
How much will a prop unload in the air. I think the maximum RPM for this engine is about 15000.
I am thinking that the engine will unload too much and over rev.
Maybe I could go to a 3 blade prop.

Greg
       Post #: 1

YS63 FZ....What Speed on Ground? - 5/23/2002 10:16:10 PM   
mscic-RCU



Posts: 940
Joined: 3/29/2002
From: New London, OH,
Status: offline 		try an 11X8

(in reply to OldRookie)
       Post #: 2

YS63 FZ....What Speed on Ground? - 5/23/2002 11:56:48 PM   
m.gramling



Posts: 1787
Joined: 1/8/2002
From: Atoka, TN, USA
Status: offline 		I fly mine w/ 2 differant props.
13x6 APC (10,500) peaks at 11,400
14x4 zinger 10,200 peaks at 10,900

I personnly think an 11x8 prop isn't going to be enough prop unless you run it real rich.

(in reply to OldRookie)
       Post #: 3

YS63 FZ....What Speed on Ground? - 5/24/2002 3:18:47 AM   
visioneer_one



Posts: 2414
Joined: 12/12/2001
From: St. Thomas, VIRGIN ISLANDS (USA)
Status: offline 		Can you put bigger wheels on the plane? How about taller landing gear?

(in reply to OldRookie)
       Post #: 4

Propping the 63 - 5/24/2002 4:46:15 AM   
deputydog


 

Posts: 1295
Joined: 1/17/2002
From: poway, CA,
Status: offline 		The engine runes real well between 11k and 12k. A 12x8 will give you between 11,4 to 11,8 K. Propping down to the 11x10 (if you can find one) will give you near the same performance.
Of course this depends on what you have it in and the type of flying you do! See the above threads for 3D.

(in reply to OldRookie)
       Post #: 5

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> YS63 FZ....What Speed on Ground?
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