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02-15-2013, 09:01 AM
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Join Date: Feb 2013
Location: Cookeville
Posts: 29
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Difference between TSO and non-TSO new engine from Vans
What is the difference between the New TSO and non-TSO engines offered from Vans besides the price? 
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02-15-2013, 09:06 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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You will need to do a longer phase 1-------40 vs. 25 hours if you do not have a certified engine and prop combination.
__________________
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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02-15-2013, 09:45 AM
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Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,122
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More flying required...
Oh, the Huge Manatee! 
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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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02-15-2013, 09:56 AM
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Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
Posts: 4,194
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YIO is the non-certified version. As others have mentioned, it requires a longer Phase I.
From a technical difference, there is really no difference other than the YIO lacks certification paperwork. Both are made on the same line with the same people.
I installed AFP fuel injection and a Rod Bower Ram Air modification, so even if I had a certified engine, I would have still received a forty hour Phase one for adding non-certified accessories.
The decision point for most folks that have all certified accessories, engine, and prop, is the cost of fifteen hours of fuel and the benefit of having a fifteen hour reduction in Phase I worth the addidtional cost of purchasing a certified engine.
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02-15-2013, 05:02 PM
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Join Date: Dec 2008
Location: Big Sandy, WY
Posts: 2,567
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FYI. Engines are not built to a TSO. They are built to a Type Certificate. 3 products are Type Certificated. Engines, Propellers, and Aircraft.
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Actual repeat offender.
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02-15-2013, 05:32 PM
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Join Date: Nov 2010
Location: West Linn, Oregon
Posts: 1,351
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Also, as I found out, the warranty on the experimental Lycoming is shorter than the certified engine. Read the owners manual to find out.
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CharlieWaffles - But you can call me " Mark"
RV-10
N928MT
Flying - AKA Still Tinkering
Build Project Site
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02-15-2013, 08:36 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,767
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One small issue with the XIO is that if you ever want to swap an off the shelf overhauled engine in, the engine shop may not want your core, since they cannot sell it to any certified airplane.
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02-15-2013, 08:48 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Quote:
Originally Posted by Mike S
You will need to do a longer phase 1-------40 vs. 25 hours if you do not have a certified engine and prop combination.
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Chances are very good this will not come into play. The key word is "combination". If you take a TSO'ed engine and put a prop on it that was never used with that exact same model / sub-variant on a certified aircraft, then you get a 40 hour Phase 1.
Not to worry, save your money and go with the non-TSO'ed engine. Heck, after your TSO'ed engine is put in an experimental airplane, all bets are off.
Mel, do you want to chime in here?
__________________
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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02-15-2013, 09:05 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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Just to say that if you properly flight test your new aircraft, you're going to be pushing 40 hrs anyway.
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Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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02-16-2013, 07:01 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,668
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Quote:
Originally Posted by N941WR
Chances are very good this will not come into play. The key word is "combination". If you take a TSO'ed engine and put a prop on it that was never used with that exact same model / sub-variant on a certified aircraft, then you get a 40 hour Phase 1.
Not to worry, save your money and go with the non-TSO'ed engine. Heck, after your TSO'ed engine is put in an experimental airplane, all bets are off.
Mel, do you want to chime in here?
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aerhed is correct, if you will substitute TC'd (Type Certificated) for "TSO'd" above you'd be technically correct. Engines are not TSO'd.
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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, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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