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  #1  
Old 05-23-2011, 03:19 PM
bignose bignose is offline
 
Join Date: Sep 2010
Location: Sao Paulo, Brasil
Posts: 72
Default Hartzell Three Blade c/s Propeller

Hartzell released a new tree bladed constant speed composite propeller for the 260 Hp Lycoming. Looks verry agressive, similar to the Cirrus Turbo, large scimitar blades.They promisse less vibration, smother idle RPM, better take off and cruise performance.

Wonder if somebody is already using it, and if it's really a better choice than the blended two blade Hartzell.

Normaly one knows that two blades are better than tree for cruise... Just thinking...
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  #2  
Old 05-23-2011, 04:08 PM
civengpe civengpe is offline
 
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Location: Houston, Texas
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Default

Do you have link to this new prop?
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  #3  
Old 05-23-2011, 04:09 PM
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Auburntsts Auburntsts is offline
 
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Are you talking about the C3YR-1N/N7605 ACS prop that you can get through Van's? I believe Rob Hickman of AFS fame has one on his 10. There's a thread on VAF somewhere about it IIRC.
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  #4  
Old 05-23-2011, 04:18 PM
bignose bignose is offline
 
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Default

Quote:
Originally Posted by RV9A Bill View Post
Bignose,
Did they say what kind of tree they made it out of?
Rv9A Bill
Three, trois, drei, tr?s, so sorry !
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  #5  
Old 05-23-2011, 06:18 PM
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N402RH N402RH is offline
 
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Like this?


Rob Hickman
N402RH RV-10
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  #6  
Old 05-23-2011, 06:24 PM
bignose bignose is offline
 
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Default

Quote:
Originally Posted by Auburntsts View Post
Are you talking about the C3YR-1N/N7605 ACS prop that you can get through Van's? I believe Rob Hickman of AFS fame has one on his 10. There's a thread on VAF somewhere about it IIRC.
Yes, I have seen some of these beauties instaled on some 10's. I wonder if they do not slow down cruise speed.
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  #7  
Old 05-23-2011, 06:27 PM
bignose bignose is offline
 
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Quote:
Originally Posted by N401RH View Post
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Rob Hickman
N402RH RV-10
Yes, WOW.
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  #8  
Old 05-23-2011, 06:32 PM
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Casey Stewart Casey Stewart is offline
 
Join Date: Apr 2010
Location: Arlington, WA
Posts: 174
Default WOW

That must be the best looking prop I have ever seen!!! I wish I could afford that prop. What are the numbers relative to the "standard" Hartzell?
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  #9  
Old 05-24-2011, 05:39 AM
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pierre smith pierre smith is offline
 
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Location: Louisville, Ga
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Default One other problem

You have to have a removable lower "snout" in order to remove the cowl. A friend of mine has three-bladed prop on his -10.

For comparison, ask Rob if his -10 will run 214 MPH TAS at 800' ASL (WOT), or cruise at 175 K at 8,000'/76%. Sure is a pretty piece!

Best,
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  #10  
Old 05-24-2011, 05:57 AM
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mv031161 mv031161 is offline
 
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Default

Try high $40's for it!
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