The reason they told you that you need the RBB-300-1 system is because that is what I show in the application document that I developed for Rosen, in exchange for the discount that they give to BAC members. Log on to BAC and type 'Rosen Sunvisor Applications' into the upper right search box. If you read the download that pops up, you will see all the photos, applications by mount group, etc. The only item not yet resolved is the continuing need for a Rosen oval mount base with correct screw spacing, for the Group II ball-and-claw mount type mount replacement. Anyone who has the Group II mount and wants Rosens right now, has to request a Piper stud mount with the Rosen RBB-300-3. The Group II mount style was used on Sundowners from SN M1632 through SN M2070. Yours needs the 300-1 style.

The Skipper drivers can get Rosen mounts by ordering the Bonanza mounts with the smaller 5" by 12" Rosen blades; or by cutting down the standard Rosen blades to the Skipper blade profile. Rosen can't justify the cost of a blade that is unique to the Skipper.

You can remove the trim to check for visor mount holes beneath it. Most of those that I have seen with this configuration have just had the bases attached using sheetmetal screws, into drilled holes. My advice would be to instead drill and tap the holes for a size 08 screw, and install the correct screws with a dab of Loc-tite. They won't come loose, and you won't wear out the holes as often happens with the SMS screws. You can use the photos in the Applications download to orient the holes properly, if the Rosen data is incomplete.

---------- Original Message ----------------------------------
From: "Kerry Muller" <>
Date: Thu, 29 Dec 2005 16:19:11 -0000

I'd like to put in a set of Rosen visors during my annual next month. My plane is a '75 C23 and the published part# for a Sundowner is RBB-300-3. I asked Rosen and they said my serial #1609 would take RBB-300-1 instead. Pictures on their site for both look the same to me. Did later Sundowners have a different visor mount? My plane never had visors but there are circular bump-outs in the top windshield trim where they obviously would mount. Anyone know if it would be safe to assume that underneath this plastic trim are hard points for mounting?

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