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  #31  
Old 06-13-2017, 01:36 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
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Just curious. Listed WW prop tear down inspections vary; 250 hours or 1 year, 350 hours or five years, 650 hours or 5 years, etc.

Point being, maintenance requirements are part of the decision tree.

Carl
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  #32  
Old 06-13-2017, 04:00 PM
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RV6_flyer RV6_flyer is offline
 
Join Date: Jan 2005
Location: Uniontown, PA
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Quote:
Originally Posted by Carl Froehlich View Post
Just curious. Listed WW prop tear down inspections vary; 250 hours or 1 year, 350 hours or five years, 650 hours or 5 years, etc.

Point being, maintenance requirements are part of the decision tree.

Carl
Yes Carl, the maintenance requirements tips the ownership cost toward the more expensive up front cost Hartzell to have the lower life cycle cost. Several posts above back that up. Now if Whirlwind used the Hartzell hub instead of the McCully hub we may then have similar life cycle costs.
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  #33  
Old 06-13-2017, 04:06 PM
N62XS N62XS is offline
 
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Location: Hazlehurst, GA
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Default WW Stories

I've had two Hartzells and two WW. I won't go into it here, but PM me and I will tell you about my experiences with WW and why I am a Catto flyer now.
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  #34  
Old 06-13-2017, 07:45 PM
KatanaPilot KatanaPilot is offline
 
Join Date: Feb 2015
Location: Locust Grove, GA
Posts: 231
Default Decision made

Sent the form to Van's this morning for the Hartzell composite with the extended M hub. Big bucks but should be a great prop on our RV-7A.

Thanks for all the advice and experiences.
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  #35  
Old 06-15-2017, 11:58 AM
WAM120RV WAM120RV is offline
 
Join Date: Dec 2006
Location: Coventry. England
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Default Interested in this too.

Quote:
Originally Posted by N62XS View Post
I've had two Hartzells and two WW. I won't go into it here, but PM me and I will tell you about my experiences with WW and why I am a Catto flyer now.
I will be buying a new prop, I would be interested in your experience too.
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  #36  
Old 06-20-2017, 08:51 AM
Chattin35 Chattin35 is offline
 
Join Date: Jul 2014
Location: Boise, ID
Posts: 185
Default Hartzell v Whirlwind

Bob, I'm excited to hear the comparison of the BA vs newer WW. I'll definitely keep an eye on this thread as it progresses. I've heard the BA wins performance wise vs the older 200RV on the same aircraft.

My $0.02... My -7 with the Hartzell BA is perfectly balanced. It's almost impossible to load it out of CG. The plane is off the runway in a couple hundred feet and climbs like a beast. Plus, there are no aerobatic limits (no extension req'd) and no RPM limits with this combo. So, I'm very very happy.

However, I flew through some decent rain last weekend and noticed some of the paint had eroded very slightly. I hear the nickel leading edge on a composite prop is better for rain and backcountry flying. Anyone with experience there? How is the W&B with a lighter prop?

I also flew a -7 with a 3 blade composite MT prop which was a super smooth running combo -- almost turbine like.
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  #37  
Old 07-30-2017, 08:05 AM
Bob Martin's Avatar
Bob Martin Bob Martin is offline
 
Join Date: Jan 2005
Location: Richmond, Virginia
Posts: 922
Default update

Just an Update as I know a few are watching the thread.
We have still not received the new 74HRT from WW.
15 weeks now.......and still no shipping notice.
WW says they are very busy.
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