252 > 262 Conversion

[Ragsf15e]

13 minutes ago, kortopates said:

He may also have a hard time getting it through annual anyplace other than Don’s with out such documentation if mooney savvy IA discovers this…


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Possibly, but Cole has been maintaining it since…

[kortopates]

Let’s hope Frank has some good news for you.


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[Ragsf15e]

14 hours ago, kortopates said:

Let’s hope Frank has some good news for you.


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According to Don, they consulted Mooney engineering before the conversion and Mooney agreed that the single puck conversion was acceptable since the original Bravo had a higher GW and single puck.  It’s never simple or as clear as we want with these things…

[kortopates]

5 minutes ago, Ragsf15e said:

According to Don, they consulted Mooney engineering before the conversion and Mooney agreed that the single puck conversion was acceptable since the original Bravo had a higher GW and single puck.  It’s never simple or as clear as we want with these things…

Great, get that in writing then if Don didn't already.

Very glad to hear it wasn't just done out of convenience!

[MikeOH]

40 minutes ago, kortopates said:

Great, get that in writing then if Don didn't already.

Very glad to hear it wasn't just done out of convenience!

Given the wording in the logbook, wouldn’t that be sufficient ‘in writing’ evidence?

[Pinecone]

Would that be a minor mod?

The conversion to Encore is in the TDCS.  

I would want at least a letter from the manufacturer.

[kortopates]

Given the wording in the logbook, wouldn’t that be sufficient ‘in writing’ evidence?

No, because we have to cite approved or acceptable data for the change. The cited drawing requires the double puck brake change so approved or acceptable data is required to omit them.


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[kortopates]

Would that be a minor mod?
The conversion to Encore is in the TDCS.  
I would want at least a letter from the manufacturer.

A change to the landing gear is considered major.


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[Pinecone]

Just now, kortopates said:

A change to the landing gear is considered major.

It was more rhetorical question.  If it is not a minor mod, it needs more than a log book entry.

[Aerodon]

The double puck conversion is by far the most expensive part of the conversion,  new master cylinders, new calipers, new gear leg to flip the pucks from front to back, new gear doors.  

Without these, you do not have a legitimate Encore in my opinion.

The balance weights are relatively minor, but the stabilizer does require some trimming.  I can tell from pictures whether these have been done or not. the Vne does not change, gross weight might have some influence on flutter speeds, but I think production line convenience was part of it.

The engine changes are minor if you do it smart.

There’s a reason this is an expensive upgrade.

Don

 

 

[Aerodon]

15 hours ago, kortopates said:

A change to the landing gear is considered major.


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If there were two different propellers listed on the type certificate,  the logbook entry would be simple, removed 2 bladed prop, installed 3 bladed, update W&B etc.

How is an encore conversion any different, it’s a configuration change, not a modification to the type certificate.  It’s a series of changing one part for another, including the POH, complete with factory instructions.

Don

[kortopates]

14 hours ago, Aerodon said:

If there were two different propellers listed on the type certificate,  the logbook entry would be simple, removed 2 bladed prop, installed 3 bladed, update W&B etc.

How is an encore conversion any different, it’s a configuration change, not a modification to the type certificate.  It’s a series of changing one part for another, including the POH, complete with factory instructions.

Don

As you state above its not different and any A&P can accomplish this. But my comment was directed at not following the factory instructions, just like taking an Encore and then replacing the brakes with single puck since then it will no longer be compliant with out acceptable or approved data to do so.  

[Pinecone]

On 3/6/2025 at 11:04 AM, Aerodon said:

If there were two different propellers listed on the type certificate,  the logbook entry would be simple, removed 2 bladed prop, installed 3 bladed, update W&B etc.

How is an encore conversion any different, it’s a configuration change, not a modification to the type certificate.  It’s a series of changing one part for another, including the POH, complete with factory instructions.

Don

He was not saying that doing the conversion from 252 to Encore, in accordance with the two drawing is a Major mod.  But that doing an Encore with single puck brakes IS a Major mod, as it does not conform to the 252 TDCS or the Amended 252 TDCS or the Encore TDCS,