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  #1  
Old 01-29-2010, 10:48 PM
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these MB can fly..

Diamond aircraft is using MB turbo diesels in their small twin. Pretty cool idea. They are car engines with different fuel controls.
check it out: http://www.aopa.org/members/files/pilot/2010/february/feature_diamond.html
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  #2  
Old 01-29-2010, 11:22 PM
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What engine is it based on? I can't tell. All I can see is that it's not a hopped up 616.
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  #3  
Old 01-30-2010, 01:52 AM
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It reads like its based on the new blue what ever that MB has just come up with.
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  #4  
Old 01-30-2010, 03:18 AM
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I've flown one of the DA-42's when they first came out. It's a fantastic little airplane, despite the engine troubles. We flew it on one engine, and it did great.
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  #5  
Old 01-30-2010, 04:24 AM
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I am waiting for some one to suggest doing a grease car conversion on one!!
A WVO powered airplane !!! I dont think so. The FAA would have a purple fit !!
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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving
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  #6  
Old 01-30-2010, 04:32 AM
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Quote:
Originally Posted by layback40 View Post
I am waiting for some one to suggest doing a grease car conversion on one!!
A WVO powered airplane !!! I dont think so. The FAA would have a purple fit !!
WVO does not work (nor does pure Biodiesel) in the new CDI type engines. WVO turns to muck at 22,000+ psi. That's one of the things I like about the new diesels, they cannot run WVO. So no one can ruin them with a slow death!
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  #7  
Old 01-30-2010, 06:22 AM
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A lower pressure than that will cause WVO or Bio to polymerize under the right conditions. Thats what the varnish is that is often spoken about.
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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving
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  #8  
Old 01-30-2010, 10:30 AM
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I wonder why they use diesel engines. Why not spark-ignition? Higher power-to-weight ratio. Maybe the fuel efficiency negates that?
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  #9  
Old 01-30-2010, 12:24 PM
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Will they run on jet fuel??? I don't know of an airport that has a diesel pump?? What would jet fuel do to our diesels? I know that they will run it but for how long?

Robert
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  #10  
Old 01-30-2010, 12:42 PM
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Quote:
Originally Posted by LuckyEddie View Post
Will they run on jet fuel??? I don't know of an airport that has a diesel pump?? What would jet fuel do to our diesels? I know that they will run it but for how long?

Robert
Fuel grade: Jet A, Jet A-1 lb

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  #11  
Old 01-30-2010, 05:27 PM
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Quote:
Originally Posted by JEBalles View Post
I wonder why they use diesel engines. Why not spark-ignition? Higher power-to-weight ratio. Maybe the fuel efficiency negates that?
AFAIK, aviation gasoline, or 100LL as it is sometimes called, is peculiar to aviation engines only. Jet fuel is common at any airport, and has a wide variety of other uses. Additionally, general aviation engines are still using 1950's technology- points, magnetos, and carburetors with mixture controls, and it is important to monitor mixture and EGT. The move to diesel offers single lever power control, as well as a safer fuel.
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  #12  
Old 01-30-2010, 07:56 PM
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I was trying to figure out how they got off the ground with the weight. They toss the cast iron crankcase and make their own using mercedes internals. I wonder how that would run in one of our older cars 170hp and lighter weight.

Sure would drop the 0-60 time.
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  #13  
Old 01-31-2010, 11:02 AM
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The Germans had diesel aircraft in WWII- The Junkers Jumo had an opposed piston diesel engine with two crankshafts, similar to a Fairbanks-Morse OP engine.
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