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Old 02-04-2022, 07:09 PM
Flandy10 Flandy10 is offline
Join Date: Dec 2007
Location: Fayetteville, GA
Posts: 163
Default Rv10TDI returned to flight

After a VERY LONG year, the task of changing out the prototype TD300 diesel engine for the type certificated SR305 engine is complete.

The factory sent a representative to inspect the installation on Monday and finally on Tuesday…

It came to life….

First flight was Wednesday…

Short first flight-yes. Several other flights were made after making prop and governor adjustments. An alternative engine mapping was also tested.

More testing to come…
Scott Flandermeyer
Rv-10 TDI 385hrs
Fayettevile, GA

2022 VAF Donation complete
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Old 02-04-2022, 08:02 PM
majuro15's Avatar
majuro15 majuro15 is offline
Join Date: Feb 2013
Location: Charlotte, NC
Posts: 722

Scott, congrats on the flight and your patience! Good to see it’s back flying. I’m excited to hear about more details.
Tim Huneycutt, Capt, NCANG
CRJ/PC-12 Pilot
N1017H RV-10 Flying 2019
EAA Lifetime Member 1106970
2022 VAF Dues Paid!
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Old 02-05-2022, 07:31 AM
TS Flightlines TS Flightlines is offline
Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 3,170

Scott----PROUD OF YOU---not only for the work, but the persistence to see this through. WE wer pleased to have been a part of this project!

Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7A Tail Kit Completed, Fuse started-Pay as I go Plan, on hold while we develop new products for RV builders
Ridgeland, SC,
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Old 02-05-2022, 08:53 AM
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KiloWhiskey1 KiloWhiskey1 is online now
Join Date: Mar 2006
Location: Kennesaw, GA
Posts: 280

Congratulations Scott! Sounds great!!
Keith Ward
Current: RV-10 N253RV, RV-3 N235RV,
Sold: RV-7 N818PA, RV-7 N818KW, RV-8 N626JL, Christen Eagle II N56RJ
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Old 02-05-2022, 08:55 AM
rocketman1988 rocketman1988 is offline
Join Date: Jun 2010
Location: Sunman, IN
Posts: 3,278
Default following!

Can't wait for more updates!

I noted that there are a couple of versions of the SR305; are you using the 230 hp or the 260 hp?
EAA Tech Counselor
Aerospace Engineer '88

In Paint at Evoke!
Garmin G3X-T, Barrett EFII S32, CAI, MTV-9B

Dues+ Paid 2022,...Thanks DR+
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Old 02-05-2022, 01:11 PM
A2022 A2022 is offline
Join Date: Apr 2011
Posts: 2,425

wow. a lot of work. it seems it could be worth it for the future, but I guess it depends on how much you fly.
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Old 02-06-2022, 10:00 AM
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rv6ejguy rv6ejguy is offline
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 6,446

Congrats Scott, looking forward to more specs as you fly the new engine.

I'm confused with the nomenclature describing this engine. It's been called so many different things over the years. Have they settled on something finally?

You mention re-mapping. Is this version now FADEC controlled or does it still maintain the mechanical injection it had previously?


Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, SDS EFI, Marcotte M-300, IVO, Shorai- RV6A C-GVZX flying from CYBW since 2003- 462.1 hrs. on the Hobbs,
RV10 95% built- Sold 2016

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Old 02-06-2022, 10:07 AM
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scrollF4 scrollF4 is offline
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Join Date: Jan 2010
Location: Flower Mound, TX
Posts: 1,762

Well done, Scott, can't wait to see performance numbers.

Sid "Scroll" Mayeux, Col, USAF (ret)
52F NW Regional/Aero Valley Airport, Roanoke TX (home of DR's Van Cave)
"KELLI GIRL" N260KM RV-7A tipper

Exemption waived.
Proud and grateful 2023 -=VAF=- Contributor

PS: I am not an influencer. I have no influence. Just ask my kids.
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Old 02-06-2022, 01:05 PM
Flandy10 Flandy10 is offline
Join Date: Dec 2007
Location: Fayetteville, GA
Posts: 163

This is the 230HP SMAAE SR305-230E. The TD-300 prototype was returned to CMI.

I am thankful to my friends at CMI for the chance to start this project. Covid/economy/changes to the production engine/etc. were slowing progress toward the completion of our agreement, a type certificated production engine. 2020 saw SAFRAN sell the SMA line of engines to the Roder Group in Germany (SMA Aero Engines)and I saw an opportunity. Like CMI, they see the potential in the airframe/engine combination that I do. So I switched manufacturers and as I promised with the TD-300, I will provide data once I have the installation adjusted- both the good and bad. Which hopefully won’t be too long.

The MAIN difference between the SR305 and the CD-265/TD-300 is the SR305 has a computer that controls the ground and flight idles, along with max power. It is not a FADEC system,like the CD-155 or Austral 300 on the Twinstar, as there is a mechanical back-up mode. SMA licensed/sold the SR305-1 information to CMI to produce their engine as they saw fit, hence the visible similarity between the two.
Scott Flandermeyer
Rv-10 TDI 385hrs
Fayettevile, GA

2022 VAF Donation complete

Last edited by Flandy10 : 02-06-2022 at 01:16 PM.
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Old 02-09-2022, 12:05 PM
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Auburntsts Auburntsts is offline
Join Date: Jan 2005
Location: Tampa, FL
Posts: 3,235

Very interesting for sure. Can't wait to read more about it. Besides the specs and performance numbers that everyone wants to know, I'd especially be interested in what's all involved in converting a flying RV-10 with a 540 to this diesel.
Todd "I drink and know things" Stovall
RV-10 N728TT - Flying!

Last edited by Auburntsts : 02-09-2022 at 01:01 PM.
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