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10-31-2016, 06:50 PM
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Join Date: Jan 2015
Location: Prescott AZ
Posts: 95
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RV-9A panel ( throttle quadrant)
Any reason NOT to install the Throttle Mixture Prop on the the panel. I am going to make a new panel and I will have plenty of space, and the lower sub panel just takes up room.
thanks Larry
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Larry Parham
RV-9A N65KW
2018-2019 dues paid thru June
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10-31-2016, 07:11 PM
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Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,005
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If you accept that the cables would have to be removed from the engine & firewall if you ever have to remove the panel in the future, unless you figure out a cable mounting panel insert that bolts into the lower panel.
Just be wary of mounting the throttle too high (arm fatigue).
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Ralph
built a few RVs, rebuilt a few more, hot rodded some, & maintained/updated a bunch more
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10-31-2016, 07:38 PM
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Join Date: Mar 2006
Location: Edmond, OK
Posts: 194
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My cables would have been too short if installed on the instrument panel. The normal mount for the throttle and mixture cable sets them back under the instrument panel about an inch. The cables in my kit did not have an inch to spare.
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Dan Burdette
Skyview, ADS-B, Garmin 420W, TT Gemini AP
RV-9A, IO-320, E-Mag
Guthrie-Edmond Rgnl, OK (KGOK)
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11-01-2016, 05:47 AM
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Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
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As Ralph said, you may want to plan for future panel changes by keeping it on a separate panel. I have done it before on a separate panel with a notch cut on the main panel so it doesn't hang below. It takes some planning, but can be done.
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Jesse Saint
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11-01-2016, 08:43 AM
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Join Date: May 2005
Location: Tuttle, Oklahoma
Posts: 2,563
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Quote:
Originally Posted by Dan B
My cables would have been too short if installed on the instrument panel. The normal mount for the throttle and mixture cable sets them back under the instrument panel about an inch. The cables in my kit did not have an inch to spare.
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Larry,
Above is a whole lot of experience talking. Unless you order longer cables than what you currently have you will indeed have difficulty with your proposed location. Early on in my fitting process I inadvertently flipped my thottle bracket backwards while attempting to fit my cables. This orientation had the bracket flush with the front of the panel. For the life of me I could not figure out why the cables would not reach properly. After some serious head scratching and probably a sleepless night it hit me that I had flipped the bracket around. Once corrected all was right with the world.
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11-01-2016, 09:51 AM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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After 750 hours with with a DJM Throttle Quadrant in my -9, I wouldn't change a thing!
There is no fatigue associated with it because you rest your hand on the quadrant body and and hook the throttle lever with you thumb. This configuration gives you you much better control over throttle movement than than a vernier style throttle.
If I were building another side-by-side today, I would configure it exactly the same way as what I have done.
Check my website for details.

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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
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11-01-2016, 11:55 AM
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Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,145
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Quote:
Originally Posted by Larry Parham
Any reason NOT to install the Throttle Mixture Prop on the the panel. I am going to make a new panel and I will have plenty of space, and the lower sub panel just takes up room.
thanks Larry
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Works just great like this - and I would do it again in a heartbeat.

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Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2020 dues paid 
N16GN flying 700 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, 430W
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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11-01-2016, 07:19 PM
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Join Date: May 2005
Location: Savannah, GA
Posts: 1,301
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Quadrants are a fad. One problem is that there's only one friction adjustment so you can't have a loose throttle for maneuvering and keep the others where you want them. It's easier to do fine adjustments with a vernier than with a lever. But vernier throttles are a pain for maneuvering and can be a hazard because some pilots can forget to push in the button to reduce power.
Ed
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RV-9A at KSAV (Savannah, GA; dual G3X Touch with autopilot, GTN650, GTX330ES, GDL52 ADSB-In)
Previously RV-4, RV-8, RV-8A, AirCam, Cessna 175
ATP CFII PhD, so I have no excuses when I screw up
2020 dues slightly overpaid
Retired - "They used to pay me to be good, now I'm good for nothing."
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11-01-2016, 09:42 PM
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Join Date: Jul 2013
Location: US
Posts: 2,251
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Quote:
Originally Posted by Ed_Wischmeyer
Quadrants are a fad. One problem is that there's only one friction adjustment so you can't have a loose throttle for maneuvering and keep the others where you want them. It's easier to do fine adjustments with a vernier than with a lever. But vernier throttles are a pain for maneuvering and can be a hazard because some pilots can forget to push in the button to reduce power.
Ed
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I have the DJM quadrant, and have not had any problems with friction adjustments. I don't think I've adjusted it more than a time or two in 400 hours now, and the throttle works just fine, and none of the three exhibit any kind of "throttle creep".
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11-01-2016, 10:06 PM
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Join Date: Oct 2016
Location: Up north eh
Posts: 27
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Quote:
Originally Posted by airguy
Works just great like this - and I would do it again in a heartbeat.

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Pure curiosity... why put the mixture in the middle?
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Brandon Simunac
Prince George, BC, Canada
RV Wannabe. Just soaking up knowledge for now
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