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02-19-2014, 10:45 AM
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Join Date: Mar 2008
Location: Ramona, CA
Posts: 2,370
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Intermediate Flap Positions
The Vertical Power VP-X allows a couple of different options on the positioning of the flaps automatically.
I'm wondering what the best advice is on having either one intermediate setting, or two for the flaps on the RV-9?
For example, 0-10-20-30, or 0-15-30, or 0-10-30 degrees, or something else?
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02-19-2014, 11:05 AM
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Join Date: Jan 2005
Location: KPYM
Posts: 2,686
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Bruce,
I, and everyone else I know uses only zero, half and full flaps.
It is how I set up mu -7.
If I were you, I would do the same for the -9A.
I am guessing that others will come back and say similar?
 CJ
__________________
RV-7 Flying - 1,200 Hours in 5 Years!
The experiment works!
TMX-IO-360, G3i ignition & G3X with VP-X
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02-19-2014, 02:44 PM
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Join Date: Dec 2012
Location: Greenfield, IN
Posts: 341
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Hello Bruce,
I never config. mine to stop at any certain point. I thought it best for me to determine that at the moment. But I can see how that might be good too.
Dave
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02-19-2014, 03:50 PM
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Join Date: Mar 2005
Location: Ramona, Ca
Posts: 259
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Hi Bruce,
I'll probably get flamed for this but, I normally put in 10 deg of flaps on entering downwind (~90kts) to slow down a bit (into white arc) and then full flaps just before entering base. This seems to works well most of the time. If landing with strong crosswinds I would probably go with the 10 to 15 deg.
YMMV
Bill
__________________
Bill RV-9A Flying
FFI- Flight Lead
N99WC
Ramona, CA (KRNM)
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02-19-2014, 05:51 PM
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Join Date: Apr 2011
Location: Cincinnati, OH
Posts: 2,791
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I like 10 degree
my initial flap is 10 degree
__________________
Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 800+ for all
Simplicity is the art in design.
My Artwork is freely given and published and cannot be patented.
www.rvplasticparts.com
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02-19-2014, 08:53 PM
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Join Date: Jan 2005
Location: Baton Rouge,La.
Posts: 150
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Flaps
I set mine up with 10,20,30- similar to most other planes I've flown, except Grumman tiger- just a momentary switch in that one. The vertical power can prevent high speed flap deployment- I really like that unit!!
__________________
Danny B
Baker,La.
RV9A #91137 Flying!!
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02-19-2014, 09:54 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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OK, I don't have a FPS in my -9. Thus, I can set them wherever I want/need.
With .5 of a Vlad unit of flight time (500 hours), I found I lower the flaps to match a lowered aileron for soft and/or short field taxing and takeoff.
For landings, I make it real simple, I put in full flaps a beam my touchdown point and trim it for either 55 or 60 knots depending on my load and wind conditions. Even with windy crosswinds I use full flaps. I have found this technique reduces workload because you have eliminated flap deployments and trim changes during a critical phase of flight.
Added: What I'm saying is that once you fly your -9, you will adjust you FPS to fit your flying style.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
Last edited by N941WR : 02-20-2014 at 09:21 AM.
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