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  #21  
Old 01-02-2021, 02:30 AM
FlyinTiger FlyinTiger is offline
 
Join Date: Feb 2009
Location: Gilbert, SC
Posts: 250
Smile A modern engine

I'm watching with interest. Looking for these modern engines to run a few thousand hours reliably, technological advances are exciting.

Next, examples of electrically governed props being used with these engines and learning about maintenance cycles/reliability of these systems in the experimental world.

Maybe UL will build FWF kits for RVs since they are one of, if not the most popular experimental aircraft built.
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  #22  
Old 01-03-2021, 02:41 PM
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swisseagle swisseagle is offline
 
Join Date: Feb 2005
Location: 20km outside of Zurich, Switzerland
Posts: 495
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The RV-8 mentioned in one answer, flying with an UL engine:
- Needed an additional engine mount, the one from the engine supplier was not strong enough.
- It flew
- Had an unexpected engine shutdown, luckily on taxiway
- Somehow engine is running very rich

Now it sits in the hangar corner ...
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RV-7A, TMX-IO-320, FM-150, Sensenich FP
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  #23  
Old 01-24-2021, 02:11 AM
Mike Houston Mike Houston is offline
 
Join Date: Dec 2020
Location: Bushmills
Posts: 22
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Quote:
Originally Posted by pierre smith View Post
Ray Lawrence, the UL importer, is a friend of mine. His 220 HP UL turbo has so far, maintained 36” up to 13,000’ ! He now has intercoolers installed and with his recently acquired oxygen, plans to go near 18,000’ for further tests..stay tuned...😊

Regards,
What type of plane is he running the engine on?
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  #24  
Old 01-24-2021, 03:19 AM
Peter Costick Peter Costick is offline
 
Join Date: Jan 2005
Location: Melbourne, Australia
Posts: 109
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FWIW

I know absolutely nothing about UL Power and so I don't comment on them.

But I will echo earlier comments about increasing the complexity of the build. I would estimate any change to the kit design adds many many times to the complexity, often in ways you would never expect.

My own experience with what was sold as a bolt on and go engine based on the Subaru STi from what was then a Florida based company ended in failure, and a loss of $10,000's. It nearly killed the whole project, and certainly put it back many years. I count myself lucky, a friend who also bought the same package got it flying in his RV8, after much work, and expense, but ended up crashing into a forrest when the engine suffered multiple internal failures in flight.

Now I am happily flying behind an Aerosport Lycoming. And the guy who crashed his RV8 walked away mostly uninjured.

Caveat emptor
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2020 Donation Made
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  #25  
Old 01-24-2021, 03:57 AM
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pierre smith pierre smith is offline
 
Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,885
Default RV-4

Quote:
Originally Posted by Mike Houston View Post
What type of plane is he running the engine on?
Mornin’ guys.Ray has the engine in his RV-4, turned out to be a Rocket in performance! I was just there a couple of days ago and saw the longer motor mounts and cowls already developed for the RV-8, 7 ,9 and -12.

I’m putting one in my RV-12 shortly and the other -12 has incredible performance with its 130 HP UL engine.

Regards,
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46 years ag pilot/CFI
Air Tractor 502/PT-6
Building RV-12, Wings, fuse, emp complete. FWF in progress.
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  #26  
Old 01-25-2021, 02:01 AM
Mike Houston Mike Houston is offline
 
Join Date: Dec 2020
Location: Bushmills
Posts: 22
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Quote:
Originally Posted by pierre smith View Post
Mornin’ guys.Ray has the engine in his RV-4, turned out to be a Rocket in performance! I was just there a couple of days ago and saw the longer motor mounts and cowls already developed for the RV-8, 7 ,9 and -12.

I’m putting one in my RV-12 shortly and the other -12 has incredible performance with its 130 HP UL engine.

Regards,
Very interesting, there new Turbo 520 would be suitable for the RV14 and maybe the RV 10. 220HP @ 8000 ft must be up there with the IO-540. Do you know if they are looking into FWF for those planes, those are the ones I am interested in.
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  #27  
Old 01-25-2021, 03:12 AM
jakej jakej is offline
 
Join Date: Aug 2005
Location: Adelaide, Australia
Posts: 136
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Quote:
Originally Posted by Peter Costick View Post
FWIW

I know absolutely nothing about UL Power and so I don't comment on them.

But I will echo earlier comments about increasing the complexity of the build. I would estimate any change to the kit design adds many many times to the complexity, often in ways you would never expect.

My own experience with what was sold as a bolt on and go engine based on the Subaru STi from what was then a Florida based company ended in failure, and a loss of $10,000's. It nearly killed the whole project, and certainly put it back many years. I count myself lucky, a friend who also bought the same package got it flying in his RV8, after much work, and expense, but ended up crashing into a forrest when the engine suffered multiple internal failures in flight.
Now I am happily flying behind an Aerosport Lycoming. And the guy who crashed his RV8 walked away mostly uninjured.

Caveat emptor
Wasn’t that his 4 engine ‘issue’ ? Sometimes a Lycosaurus is a better option.
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