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Rob's REBVAIR Project
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Date:  9-16-2015
Number of Hours:  2.00
Manual Reference:  
Brief Description:  Cowl Inlet Rings: Part 5

The moment of truth...everything came out perfect. Rings popped out of the forms with no trouble at all (Image 1), and the whole thing went back together nicely (Image 2). Once secured with the #8 screws and nutplates, the rings sit very securely in position, and the groove around the circumference successfully prevents fore-aft movement, as designed.

On the left side, the ring has been recessed to prevent interference with the alternator pulley. Rotation of the ring in flight would bring it into contact with the alternator pulley, which might lead to the alternator belt failure. On an all-electric aircraft, this is not something you want to have happen if it can be prevented. So to prevent this rotation, I 'keyed' the ring before setting with epoxy (Image 3), so as to positively prevent rotation of the ring when mounted. Though the key is relatively small, it is very effective at preventing roation of the ring. I'm pleased with how well this worked.

There are some gaps between the rings and the opening on the right side that will need some careful filling and dressing, but all in all, the endeavor was a success.
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Rings popped right off and nothing got glued together

Rings popped right off and nothing got glued together

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nice fit after reassembly

nice fit after reassembly

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