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10-28-2015, 01:07 PM
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Join Date: Oct 2015
Location: Harrison, AR
Posts: 14
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whirlwind 74RV in taildragger?
was talking to the guys at whirlwind, and they have new prob called 74RV, which is 74inches, would this be a problem on a taildragger?
my interp of the info on vans site is that the 72 inch is rec for this application.
thought from the group?
das
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10-28-2015, 01:19 PM
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Join Date: Dec 2007
Location: Fredericksburg, TX
Posts: 662
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What model plane? On my RV8 I have 72" and can't imagine one more inch making much difference as there is plenty of ground clearance.
__________________
Jim Averett
RV-8
TS36 - Silver Wings
Fredericksburg, TX
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10-28-2015, 01:20 PM
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Join Date: Apr 2008
Location: Indianapolis, IN
Posts: 1,069
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I fly a 74 inch hartzell on my TW rv7, no problems with ground clearance.
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Ryan Allen, CFII
RV7 N612RA, flying since july 2012
E-170/175
RV10 Tail Kit complete, Wings 90%, fuse on order
Acro Sport 2, building
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10-28-2015, 03:22 PM
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Join Date: Oct 2015
Location: Harrison, AR
Posts: 14
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thanks, I'm a RV7 tailwheel
das
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10-28-2015, 03:26 PM
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Join Date: Mar 2005
Location: DVT Phoenix
Posts: 1,187
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74 inch Hartzell RV 7 works for me over 1000 hrs
Larry
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10-28-2015, 05:43 PM
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Join Date: Nov 2010
Location: Redwood City, CA
Posts: 98
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No problem at all with the 74RV in an RV-8 taildragger. I originally had the 200RV 72" blades and swapped to the 74RV, no complaints.
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Greg Blanck
RV-8 Completed March 2014
Redwood City, CA
RV-8 Build Log
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10-28-2015, 05:57 PM
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Join Date: Nov 2011
Location: Aurora, OR
Posts: 843
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For people flying the 74RV, curious what engine and HP you're running with?
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Greg Hughes - Van's Aircraft - Community, Media, Marketing
Van's web site | Instagram | Facebook
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Building RV-8A since Sept 2014 (N88VX reserved)
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XP IO-360
VAF build thread - Flickr photo album - Project Facebook page
Aurora, OR (EAA Chapter 105)
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10-28-2015, 07:08 PM
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Join Date: Mar 2006
Location: Gilbert, AZ
Posts: 1,628
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Not to worry...
Mine is a 78-inch Hartzell composite constant speed. Still plenty of clearance.

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Ron Schreck
IAC National Judge
RV-8, "Miss Izzy", 2250 Hours - Sold
VAF 2021 Donor
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10-29-2015, 11:24 PM
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Join Date: Jul 2012
Location: Lakeway, TX
Posts: 16
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Whirlwind 72" vs the 74"rv
Quote:
Originally Posted by DAS
was talking to the guys at whirlwind, and they have new prob called 74RV, which is 74inches, would this be a problem on a taildragger?
my interp of the info on vans site is that the 72 inch is rec for this application.
thought from the group?
das
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Any performance comparisons between these two props - actual or hearsay?
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OldGuy
N58TX RV-8 QB
Avionivs
Prior, 1955 C-170B.
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10-30-2015, 01:00 AM
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Join Date: Nov 2010
Location: Redwood City, CA
Posts: 98
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Quote:
Originally Posted by OGee
Any performance comparisons between these two props - actual or hearsay?
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I've had both the 200RV and 74RV on my IO-375 powered RV-8. I haven't done any credible performance comparisons, but gut feel is that performance is generally similar, 74RV seems to accelerate, climb and slow down better, 200RV might have a slight edge in cruise speed.
The 74RV looks faster on the ground and gets a lot more attention than the 200RV did.
__________________
Greg Blanck
RV-8 Completed March 2014
Redwood City, CA
RV-8 Build Log
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