[Robert Barlow]

Richard

Thanks for the great info! Pre-buy/annual starts today. Hoping all goes well!

Robert

[Robert Barlow]

Considering the addition of the O-320 STC and weight increase STC with the installation of the gear spring plates and brackets to match the AA-1B, what else would be different between the 1A and 1B to account for the difference in CG envelops and allowed gross weight?

I hear these planes are often flown over gross with the O-320 and although I don’t endorse flying outside of the numbers, I do understand sometimes numbers are restricted due to complications/expense of certifying an STC (O-320 rpm red line for example). I am trying to understand what are real world safe limits with the gross weight and if it would be safe to consider flying the 1A to 1B numbers with O-320 and after gear mods?

[Robert Barlow]

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[Robert Barlow]

Richard
Thanks again for the great info and your panel looks great! How much weight do you estimate you saved by exchanging the two instruments and pulling the vacuum system out?

Rags Rettzo who has a Grumman shop south of Phoenix is reviewing logs and putting his eyes on her today. If all clear, we will proceed with Annual/pre-buy first of next week.

Attached is a pic of this sexy little lady!
Curious, does the CY & P stenciled on either side of the Yankee emblem have significant meaning in the Grumman world?

[Robert Barlow]

Thank you for the input!

I have been in contact with Rags Rettzo about a Pre-buy/annual whom I found on this site. Looked like he was a host for one of the Grumman meet ups to discuss Grumman maintenance. Any experience with him?

The plane has a useful load now of 350lbs and need to get it to as close as possible to 450lbs useful load for two place training. Here are my thoughts?
* Install the Gross Weight increase stc to gain back net 55lbs.
* Possibly move battery aft to remove tail ballast (amount of ballast is unknown)
* remove wheel pants for training, 9 lbs?
* Possibly install G5s or AV30s and remove vacuum system, 12 lbs?
* Possibly remove interior for training (weight unknown, would want to refurbish anyway, would just delay re-install)

I would very much appreciate confirming my estimated numbers on weight savings and any other tricks to shave weight.

Engine has Sky Tec Starter
Alternator unknown

If I move forward I am getting the plane at a very good price to allow this work to fix the useful load issue.

Thanks as always!
Robert

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