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Ahmer

Allison 501-D22A Engine

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Can we use Allison 501-D22A commercial engine on military aircraft in place of T56-A-15 engine officially or by permission of civil aviation authority/ FAA.

Edited by Ahmer

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7 hours ago, Ahmer said:

Can we use Allison 501-D22A commercial engine on military aircraft in place of T56-A-15 engine officially or by permission of civil aviation authority/ FAA.

Yes Power plant

Munir Abbasi

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I would say no especially if you are going off of type certificate (FAA) data.

Submit an engineering request to FMS and see what they say.

 

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48 minutes ago, hehe said:

I would say no especially if you are going off of type certificate (FAA) data.

Submit an engineering request to FMS and see what they say.

 

Tnx hehe.

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2 things will happen here:

1- you will lose the commercial (civilian) certification for the D22

2- you will have no fuel flow indication.

 

The T56 engine uses a 28v DC power supply for the ff transmitter and indicators, while 

the D22 uses a 115v 400hz power supply. The wiring and connectors are completely

different.

 

In my opinion this would be a completely wasted excercise, not to mention the expense

of recertifying the D22 again

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33 minutes ago, pjvr99 said:

2 things will happen here:

1- you will lose the commercial (civilian) certification for the D22

2- you will have no fuel flow indication.

 

The T56 engine uses a 28v DC power supply for the ff transmitter and indicators, while 

the D22 uses a 115v 400hz power supply. The wiring and connectors are completely

different.

 

In my opinion this would be a completely wasted excercise, not to mention the expense

of recertifying the D22 again

Ok tnx pjvr99

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On 11/8/2018 at 10:16 PM, Ahmer said:

Can we use Allison 501-D22A commercial engine on military aircraft in place of T56-A-15 engine officially or by permission of civil aviation authority/ FAA.

See Lockheed martin Service magazine news T56-A-15 Engine 501-D22A  Engine

Regards

Munir Abbasi

Edited by munirabbasi

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10 hours ago, munirabbasi said:

Mr munir in service news not mentioned about the use 501-D22A on military aircraft and differance between both engine spacification .plz send me service news no which mentioned about these things. Regards 

 

Edited by Ahmer

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Go to AerexAvionics.com to learn about the Fuel Flow Interface used on the C-130 and other platforms for many years to access the fuel data from the fuel flow transmitter to the FMS. The Interface converts the 2nd Harmonic to DC or AC Linear for the FMS to receive the fuel data. Copy of the STC included in the install manual with a one time use agreement. DERCO is a distributor of the unit or MROs can contact Aerex directly. Hope this helps with your modification research. 

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