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05-28-2018, 06:19 AM
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Join Date: May 2016
Location: Tampa,Fl
Posts: 36
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First flight! and a question
First Flight
Saturday before the big Florida storm hit I was able to do a first flight. Everything went well with no big surprises. One question: my pitch trim works fine on the ground but in flight I found that at cruise that it wouldn?t move past neutral to allow me to trim it out completely. For some reason it showed power going to the trim as I pushed the switch but it wouldn?t move past neutral. Tried it again on the ground and it worked fine. I have a VPX system and I?ve input the positions with plenty of space on each end of travel so not sure hat it is? Any suggestions welcome.
Kevin
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05-28-2018, 08:22 AM
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Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,583
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Congrats Kevin!!!!!!
Tom
__________________
Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
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05-28-2018, 09:00 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Congratulations
Quote:
Originally Posted by Kupde
First Flight
Saturday before the big Florida storm hit I was able to do a first flight.
Kevin
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Kevin, big congrats on the new fledgling 
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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05-28-2018, 09:06 AM
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Join Date: Sep 2008
Location: Palm City, FL
Posts: 315
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Congrats on your first flight!
The VPX might be slowing down your trim motor too much when your airspeed gets higher. I don't have a VPX, but I built a similar speed sensitive trim controller, and when you get it too slow it doesn't have enough power to overcome flight loads on the trim tabs and the trim motor will stall. Speed it back up a bit and it should be fine.
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Lenny Iszak
Palm City, FL
2014 RV-10, N311LZ - 650 hrs
OnSpeed development team
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05-28-2018, 10:20 AM
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Join Date: Dec 2007
Location: Brentwood, CA
Posts: 658
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It might be that the stops are configured in the VP-X different than the PFD (I?m assuming you have an EFIS).
The VPX software has a trim configuration tool. I recommend connecting a laptop to the VP-X and cycling the trim to see what the VP-X thinks is going on. It?s likely just a setting. If you?re using a G3X, there are additional settings for trim in the configuration tool there as well. I imagine Dynon and other AP?s have the same.
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Ron Gawer
- RV10, Build in progress.
- RV12, N975G, "The Commuter"...many great hours and happy landings so far.
- Several others that are now just great memories for me.
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05-28-2018, 11:17 AM
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Join Date: Oct 2012
Location: New Ulm, Minnesota
Posts: 283
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Very nice, first flight, Cooooool....
Sorry I don't know anything about electric trim...
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Robin Mckee
New Ulm, MN 56073
RV3b N219BB
420 hours and counting 
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05-28-2018, 02:50 PM
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Join Date: May 2016
Location: Tampa,Fl
Posts: 36
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Thanks for inputs. I think it?s like Lenny said the speed power reduction at higher speeds, so I?ll set to a higher limit and see what happens...
Kevin
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05-28-2018, 07:42 PM
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Join Date: Mar 2007
Location: WARNER ROBINS, GA
Posts: 390
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Dynon?
If u have Dynon Skyview with VPX u need to go thru the calibration procedure. Both need to know which one is in charge. Had same issue with my FLAPS. Made for exciting first flight.
__________________
Keith
RV 7A RV #9700 May 2017
N325KS the Flying “K”
Built in SoCal KCCB, now in GA @ KPXE
550+ Hours & 7X cross the USA
OSH flyin 2018 & 2019 & Petit Jean 2019
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05-29-2018, 08:02 AM
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Join Date: Sep 2009
Location: St. Louis, MO
Posts: 1,785
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If u have a G3X gea24 you need to disable the speed sensitivity in the VPX as shown in the vpx manual
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Bill Peyton
RV-10 - 1125 hrs
N37CP
First Flight Oct 2012
Aviation Partners, LLC
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