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Old 02-06-2021, 04:33 PM
Rob_The_Builder's Avatar
Rob_The_Builder Rob_The_Builder is offline
Join Date: Aug 2020
Location: Amarillo, TX
Posts: 9
Default Jet-A Powerplant Input/Advice

Hello Everyone.

I'm going to start building an RV-10 this summer. The Emp kit and Wing kit are ordered!!

As with most of the plane, I have been really thinking through the finished product; avionics, paint, interior, mods, engine, etc. I am really set on having an engine that burns Jet-A or diesel. I'm aware of a few options out there (none that are really available at this time). Continental's Jet-A CD-265, Hawk E-330 Higgs Diesel, and the TP 100 turboprop. I've come across other designs, that haven't seem to have made it to market.

I've been looking at doing an off the shelf v6 3.0L diesel conversion and have found a couple of engines that seem like they might be a good start. I realize there are a lot of considerations to think about when doing something like this, so I'd prefer to go with something that has already been tried and proven. I don't think the Audi diesel that Peter has in his Raptor is the right choice. However a similar approach may be worthy.

To recap my preferences:
Burns Jet-A/diesel
Single lever control (no mixture)
FADEC (or equivalent) controlled

I realize there are some good options for conventional engines that fit all of those preferences minus the fuel. So, if the right argument could be made, I may consider a gas burner.

I look forward to your suggestions.

Last edited by Rob_The_Builder : 02-08-2021 at 01:06 AM.
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Old 02-06-2021, 04:43 PM
Mike S's Avatar
Mike S Mike S is offline
Senior Curmudgeon
Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,852
Default Welcome to VAF

Rob, welcome aboard the good ship VAF
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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Old 02-06-2021, 04:49 PM
sailvi767 sailvi767 is offline
Join Date: Sep 2010
Location: Charlotte NC
Posts: 1,296

Peter’s engine in the Raptor failed yesterday. He was able to make it back to the runway. A lot of work went into the design and he got less than 10 hours before failure.
RV-6 sold
F-1 Rocket
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Old 02-06-2021, 05:10 PM
rmartingt's Avatar
rmartingt rmartingt is offline
Join Date: Nov 2006
Location: Savannah, GA
Posts: 1,096

The Raptor is hardly a good example of proper development and testing. Indeed, it's a good example of how NOT to do it.
RV-7ER - finishing kit and systems installation
There are two kinds of fool in the world. The first says "this is old, and therefore good"; the second says "this is new, and therefore better".
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Old 02-06-2021, 05:35 PM
airguy's Avatar
airguy airguy is offline
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,391

I don't believe Continental is selling to the experimental market.

You're probably going to end up rolling your own.
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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Old 02-06-2021, 05:47 PM
Marc Bourget Marc Bourget is offline
Join Date: Apr 2009
Location: Stockton, California
Posts: 324

Any report on the mechanism of failure in the Raptor engine?
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Old 02-06-2021, 05:51 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,951

Originally Posted by Rob_The_Builder View Post
so I'd prefer to go with something that has already been tried and proven.
If you find a “tried and proven” diesel or turbine option, we will be all ears. As far a I know none exist (at least no option that does not double the price of the plane).

The parallel valve IO-540 can also burn 94UL AVGAS or premium mo-gas, so it will be viable if/when the Green New Deal does away with 100LL.

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Old 02-06-2021, 06:01 PM
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wirejock wirejock is offline
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,391
Default Engine

Originally Posted by Carl Froehlich View Post
If you find a “tried and proven” diesel or turbine option, we will be all ears. As far a I know none exist (at least no option that does not double the price of the plane).
Problem is it doubles the cost, doubles the labor hours and typically halves the value. Exaggeration of course.
Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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Old 02-06-2021, 07:52 PM
RVDan RVDan is online now
Join Date: Jun 2012
Location: Frederick, MD
Posts: 902

I have to wonder what the OP end goal is other than ditching avgas. To date, it has been demonstrated that the air cooled gas engine provides the best weight to HP ratio ( except for turbines) which only the Rotax 912 series approximates as a liquid cooled engine.
Then there is the proven reliability of the typical aircraft engines.
Dan Morris
Frederick, MD
Hph 304CZ
RV6 built and sold
N199EC RV6A flying
Retired Aerospace Engineer and A&P/IA
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Old 02-06-2021, 08:18 PM
TS Flightlines TS Flightlines is offline
Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,751

Rob-----if I may throw out alittle advise. Having been involved in several of these non-normal conversions, I can state that you'll be on your own with ALOT of custom fabrication, and probably without alot or any support from the engine manufacturer. Custom engine mount, fuel system, extended tanks, etc are just a few of the issues. Cooling may be a huge headache.

There are aircraft diesels flying, along with small turbines, but again support will be scarce.

Great concept though---

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,
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