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Old 04-10-2021, 01:44 PM
Walt's Avatar
Walt Walt is offline
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 6,018
Default Modern mixture control replaces the 'Red knob'....

The old fashioned 'Red Knob' mixture control has been officially replaced
with this new state of the art mixture dial with custom placard

I think this old dog is going to need some training!

Walt Aronow, DFW, TX (52F)

EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1900+ hrs, New Titan IO-370, Bendix Mags
Website:, Email:, Cell: 972-746-5154

Last edited by Walt : 04-10-2021 at 01:48 PM.
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Old 04-10-2021, 01:49 PM
Desert Rat Desert Rat is offline
Join Date: Aug 2018
Location: 50-50 Wichita KS & Scottsdale AZ
Posts: 570

what the heck is that about?
Terry Shortt
AGI, CFI, CFII, MEI, A&P, Janitor
RV7 Empennage & Wing done
Fuselage in process
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Old 04-10-2021, 02:39 PM is offline
Join Date: Jan 2017
Location: Battle Ground WA
Posts: 186
Default SDS heaven

I love it. I just Looks like somebody needs to do some programing of their SDS installation.
I just installed the SDS EM-5F in my RV-6A 0-360 and understand the situation.
Adjust mixture knob till you get good start parameters then adjust the computer to fit. Same with every other setting.
Works great.
I just used a felt pen on the new sub panel I made for the switches. But I've washed it all of now.
I really like the new shut down. Pull up to the hanger, kill fuel, motor dies as I shut off master and ignition switches.
No more mags WooHoo !!!!!
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Old 04-10-2021, 02:56 PM
swjohnsey swjohnsey is online now
Join Date: Nov 2018
Location: Kingsville, TX
Posts: 288

I just have some marks made with Sharpie.
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Old 04-10-2021, 04:25 PM
Ralph Inkster Ralph Inkster is offline
Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,282

I pretty much leave that knob in the neutral position now in my plane for all modes of operation, from start up thru to shut down. Only real adjustment being when I flip the LOP switch in cruise.

I hope the owner continues to tweek his system toward a more interactive fuel map that works with his engine setup.
built a few RVs, rebuilt a few more, hot rodded more, & maintained/updated a big bunch more

Last edited by Ralph Inkster : 04-10-2021 at 05:30 PM.
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Old 04-11-2021, 12:14 PM
airguy's Avatar
airguy airguy is offline
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,389

Best knob I ever installed in my panel. I don't have it trimmed as tight as Ralph does yet but I'm sneaking up on it.
Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2021 dues paid
N16GN flying 750 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, IFD440
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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