I think composite is the way to go. Lighter, stronger, and thinner. The new whirlwind 190 series is thinner like the HRT but made for smaller hp. 150 to 200. I have mine on order and am hoping for April 2019. Delivery. First flight sometime after that.
Jackz
I agree with Mr Horton...excellent write up! I have been sitting on the fence trying to decide on which direction to go with the prop...but I think that I have just been pushed off the fence!
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Hwood
N469SH / "Crazy Woman" (sold)
Working on Another -8
Exempt but paid
I agree with your report Otis.
My prop is the same, on a YIO-390 (RV14A) : the result is monstrous ! The plane reacts instantly to power changes. Take off are impressive.
Only issue, partially fixed with 3 turns of Low pitch stop: during acceleration the engine easily crosses 2850 RPM (Now "only" 2780). I have to manage blue knob before rotation.
The cruise is smooth and I like the aircraft maneuverability.
this propeller is great.
Only 12 hours with it.
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Eric
RV 14A - #140252 - Flying
France
Dues paid for 2020
My hangar neighbor has one bolted to the IO-390 on the front of his RV-14A project. I asked if he?d be willing to swap with my Hartzell B/A for awhile since he won?t be flying for several months. I generously offered to provide real-world back to back comparison numbers to help him rationalize the extra expense of his prop. He wasn?t having it. Oh well...
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Lars Pedersen
Davis, CA
RV-7 Flying as of June 24, 2012
960+ hours as of June 30, 2020. Where did the time go?
I have the 8301 Blades with the "B" hub on my RV-10 and love it !!!! By doing this I saved 16 ish POUNDS as compared to the BA aluminum blades, which allowed me to move the battery to the firewall. This eliminated the 2O cable run from the back and simplified the electrical set up (my opinion). No regrets at all.
Did you deal with Hartzell directly for this prop setup? I cannot find anyone else that has on like it and Vans only offers a 2 blade aluminum or 3 blade composite from Hartzell. I really like the idea of it. I want the lightest, smoothest prop I can get and I'm wondering if this fits the bill!
Vans sells the 2 blade composite on their site. Second one from the bottom and you'll need the alu spinner too. Mine shipped from Hartzell on Friday :-)
The price does hurt a bit at north of $15K shipped.
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Dan Reed
Camas, WA
RV-7A - Slider in progress - N167DR (reserved)
Sitting in the paint booth, then final assembly/inspection time
2018 and 2019 VAF dues paid
I just went back and added a direct link to the photo below of my installation in the initial post of this thread. Trying to do that more now, as I’ve come to realize that many people can’t or don’t access the links to photo albumns. In this thread, nearly 3K views resulted in only about 300 visits to the full albumn!- Otis
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Otis Holt-
RV-7A (bought)
Built Monnett Moni
Frmr Test Pilot/Author CAFE APR's:
RV-8A, S-7C, Europa, Glastar.
-2019 VAF donation!!-
"RV-Fun is inversely proportional to RV-Weight!"
The plane reacts instantly to power changes. Take off are impressive. 
Linear Mode
