Lycoming diesel

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CWS
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Lycoming diesel

Unread post by CWS » Thu Jan 10, 2019 6:33 pm

Spotted this on uTube not sure how old it is?
https://youtu.be/-or2dQTaJWM
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Re: Lycoming diesel

Unread post by Fransw » Thu Jan 10, 2019 6:44 pm

(Not sure its available for the civil market yet..)

ENGINE DETAILS

Max Take-Off Power
205 hp @ 3,800 RPM
Max Continuous (90%)
180 hp (134 kW) @ 3,800 RPM
Fueling for Cruise (60% PLA)
0.345 lb/hp*hr @ 3,200 RPM
Fueling for Max Continuous (90%):
0.36 lb/hp*hr @ 3,800 RPM
Approved Fuels
JET A/A1, JP-8, F-24
Cetane
For nominal performance and reliability, the Derived Cetane Number (IQT) in the fuel must be greater than or equal to 38 dCN
Dry Weight
360 lb +/- 1.5%
Number of Cylinders
4
Bore
3.2 in (82 mm)
Stroke
3.6 in (90.4 mm)
Compression Ratio
16.5:1
Oil Sump Capacity
12 quarts (11.4 liters)
Minimum Safe Oil Level
8 quarts (7.6 liters)
Pneumatically controlled
via electronic solenoid
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Re: Lycoming diesel

Unread post by Tim » Thu Jan 10, 2019 8:07 pm

What is the use case? At 165 kg it is 25 kg heavier than a Lycoming 390 - the Lycoming 390 delivers 210 HP.

While 5 to 10 l less fuel per hour, this is off-set by Diesel being heavier than petrol: the specific consumption (in g/kw/hr) is the same for both engines.

What am I missing?
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Re: Lycoming diesel

Unread post by JCA » Thu Jan 10, 2019 9:07 pm

Not to mention the likely cost of this engine. Certainly won't be cheaper than an equivalent power petrol engine.

Plus the smell of Avgas in an aircraft is somewhat sexy. Imagine you aerie smelling like a caterpillar tractor.
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Re: Lycoming diesel

Unread post by rare bird » Thu Jan 10, 2019 9:20 pm

Tim wrote:
Thu Jan 10, 2019 8:07 pm
What is the use case? At 165 kg it is 25 kg heavier than a Lycoming 390 - the Lycoming 390 delivers 210 HP.

While 5 to 10 l less fuel per hour, this is off-set by Diesel being heavier than petrol: the specific consumption (in g/kw/hr) is the same for both engines.

What am I missing?
Avgas non-availability & price
it will be easier to get JetA1 going forward
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Re: Lycoming diesel

Unread post by Jean Crous » Fri Jan 11, 2019 1:03 pm

CWS wrote:
Thu Jan 10, 2019 6:33 pm
Spotted this on uTube not sure how old it is?
https://youtu.be/-or2dQTaJWM
That was June 2015, so maybe there is some more updated news regarding the further development....
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Re: Lycoming diesel

Unread post by Fransw » Fri Jan 11, 2019 1:12 pm

Jean Crous wrote:
Fri Jan 11, 2019 1:03 pm
CWS wrote:
Thu Jan 10, 2019 6:33 pm
Spotted this on uTube not sure how old it is?
https://youtu.be/-or2dQTaJWM
That was June 2015, so maybe there is some more updated news regarding the further development....
Jean
They already are using it in unmanned craft for some time now. Lycoming only needs to release it for the civil market. They are very quit about this engine although its most probably one of the better diesel engines currently in the market..
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Re: Lycoming diesel

Unread post by Jean Crous » Fri Jan 11, 2019 1:14 pm

Frans do you have any idea on which automotive engine this is based ?
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Re: Lycoming diesel

Unread post by Fransw » Fri Jan 11, 2019 1:17 pm

Jean Crous wrote:
Fri Jan 11, 2019 1:14 pm
Frans do you have any idea on which automotive engine this is based ?
Jean
Jean, I have no idea. I'm not tech savvy! :oops: But its called the Lycoming DEL-120. Its already on their website...
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Re: Lycoming diesel

Unread post by Fransw » Sun Jan 13, 2019 10:39 am

Jean Crous wrote:
Fri Jan 11, 2019 1:14 pm
Frans do you have any idea on which automotive engine this is based ?
Jean
Hi Jean, can you make out something here?
header-engine_0.png
You do not have the required permissions to view the files attached to this post.
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Re: Lycoming diesel

Unread post by Jean Crous » Sun Jan 13, 2019 1:55 pm

Frans as far as I could find , it is loosely based on an existing industrial diesel engine, although much was changed to be able to apply it in aviation.
Have a look here https://www.dieselarmy.com/news/diesel- ... el-engine/
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